Day 1 :
Keynote Forum
Egil Orskov
International Feed Resources Unit
United Kingdom
Keynote: Tropical Animal Production
Time : 10:35-11:00
Biography:
Professor Ørskov has worked with many international organisations including FAO, IAEA, DFID EU and ILRI in project identification and evaluation in the area of feed resource management and rural development with emphasis on livestock nutrition. He worked for many years at the Rowett Research Institute in Aberdeen and more recently in the James Hutton Institute Aberdeen.The International Feed Resource laboratory provided appropriate training to support the projects. . He has worked in many countries in Asia, including Indonesia, Mongolia, China, India, Philippines, Vietnam, Thailand, Cambodia, Syria, Iran and Turkey. In Africa including Egypt, Tunisia,Cameroon Zimbabwe, Zambia, Kenya, Tanzania, Malawi, Mali, Nigeria and Ghana, in South America including Cuba, Peru, Argentina, Uruguay, Brazil and Chile and also in Eastern Europe including Poland, Czeck Republic, Slovakia and Hungary. rnHe has published 5 books and author or co-author of over 600 scientific papers and popular articles on nutrition and feed resource management.rn
Abstract:
Keynote Forum
Isabelle Kalmar
VEOS Group
Belgium
Keynote: Blood products as sustainable ingredients in livestock nutrition: protein source and alternative to antibiotics.
Time : 11:15-11:40
Biography:
Kalmar I D holds a degree in Veterinary Medicine and in laboratory Animal Sciences. She completed a PhD in Veterinary Medicine on the topic of nutrition and feeding behavior of pet birds, and performed Postdoctoral studies in immunology at Ghent University. She completed a second PhD in the field of nutrition related metabolic diseases in broilers, obtained at the department of Animal Sciences of Wageningen University. She is the senior veterinary scientist at VEOS group, a producer of animal-based food and feed ingredients with focus on plasma proteins. She has published over 30 papers in reputable journals.rn
Abstract:
Sustainable livestock production embraces a broad concept of balancing environmental, economic and societal aspects of meeting the growing global food demand on the long run. Matching dietary nutrient levels to the animal’s requirements and use of ingredients that maximize bioavailability reduce both the upstream and downstream environmental cost of meat production. To this aspect, properly processed blood products can correct amino acid deficiencies in vegetable-based proteins. Their high protein digestibility and low phosphorus content further reduce nitrogen and phosphorus load in manure. Yet, not withstanding its nutritional value, the main benefit of dietary animal plasma is likely its content in bio-active glycoproteins. Immunoglobins and other plasma glycoproteins improve gut health through which feed efficiency is improved and antibiotics use can be reduced. The latter is of paramount importance seen the emergence of bacteria that become increasingly ever more resistant to antibiotic treatment. Restrictions on antibiotics use in farm-animals are thus obviously necessary for the long run. Regrettably, this may have a negative impact on animal welfare and productivity on the short run. Therefore, efficient alternatives are crucial. Currently in Europe, non-ruminant blood products are only allowed in mono-gastric food-producing animals. Hemoglobin is primarily used in fish farming where it can partially replace fishmeal. Besides fishmeal being a limited natural resource, its carbon footprint per kg protein is 44% to 74% higher compared to hemoglobin. Spray-dried plasma is primarily used in milk replacers and early post-weaning piglet diets as natural alternative to milk-borne functional glycoproteins and as a high-quality protein source.
- Track 1: Livestock Nutrition and Health Track 4: Product Processing and Marketing Track 6: Environmental Impact of Meat Production Track 7: Agribusiness
Chair
M A Tony
Cairo University, Egypt
Co-Chair
A Z M Salem
Autonomous University of the State of Mexico, Mexico
Session Introduction
Jolien Swanckaert
Institute for Agricultural and Fisheries Research
Belgium
Title: The effect of ensiling on variety rank of Maize silage
Time : 11:50-12:10
Biography:
Jolien Swanckaert is working on her PhD at Ghent University (Belgium) in collaboration with the Institute for Agricultural and Fisheries Research (ILVO). With the PhD titled 'Quality of maize in the context of variety admission', the undergoing research will be a scientific support for the official variety trials of maize silage.
Abstract:
Official variety trials with maize silage determine quality parameters in fresh (i.e. unconserved) samples. However, farmers use silage as daily component of cattle diet. Quality changes (crude protein and starch content, NDF, organic matter (OMD) and cell wall digestibility (DNDF)) during ensiling have been studied extensively. It is as yet unclear if the variety rank based on the quality of fresh maize samples is similar with the variety rank based on the quality of ensiled maize samples. In our research, eight maize silage varieties were monitored at six harvest dates (from 250 to 400 g/kg dry matter content) in Merelbeke (Belgium). At each harvest date, fresh samples were taken and half of the sampled material was ensiled in laboratory silos for three months. We analyzed the data with Analyses of Variance and concluded that the variety rank was stable at any harvest date if the interaction between variety and ensiling was not significant. Quality changes during ensiling resulted in a change of variety rank depending on the dry matter content at harvest. Reporting variety ranks based on fresh material continues to be a good practice for crude protein and starch content. However, changes in variety ranks based on OMD, NDF and DNDF occurred at a higher frequency. For each quality parameter, a stable variety rank was only guaranteed at the first harvest date corresponding with a dry matter content of 250g/kg.
Mohamed Ahmed Tony Ahmed Marzouk
Cairo University
Egypt
Title: Impact of feed enzymes supplementation on zootechnical performance and incidence of foot pad dermatitis in growing turkeys
Time : 12:10-12:30
Biography:
Mohamed Ahmed Tony Ahmed Marzouk is a Professor in Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Cairo University
Abstract:
An experiment was conducted to determine the effects of commercial feed enzyme mixtures (Nutrikem Dry® and Kemzyme Plus®) on growing performance of male turkey and monitoring the incidence of foot pad dermatitis as well. One hundred and thirty five, eight-weeks-old turkey toms (hybrid large white tom poults) were weighed and randomly assigned to three dietary treatments (45 toms each). All birds were housed in floor pens bedded by wood shavings (3 replicate pens for each treatment). The first group was fed on four stages basal diets without any enzymes and served as a control group. The second group consumed the same basal diets to which Nutrikem Dry® was added (0.5 kg/ton feed). The third group was reared on the same basal diets supplemented with Kemzyme Plus® (0.5 kg/ton feed). Feed and water were provided ad-libitum during 16 weeks experimental period. Toms and feed consumed in each replicate were weighed biweekly. Body weight gain and feed conversion were calculated. At the end of the experiment moisture and nitrogen contents of the litter were evaluated. At 24 weeks of age 9 toms from each treatment (3 birds/replicate) were randomly selected to observe pododermatitis and carcass yield. The results of feeding trial revealed that treatments that contained either Nutrikem Dry® or Kemzyme Plus® had a significantly (p<0.05) improved live weight and weight gain compared to the control group. Feed consumption was significantly (p<0.05) improved by the digestive enzymes used and reflected positively on feed conversion ratio (FCR). Feed enzyme additives reduced significantly (p<005) the excretion weight in both treated groups compared with the control group. Both enzyme additives reduced the moisture and nitrogen contents of the litter. Turkey toms in all experimental groups were affected by pododermatitis with varying severity. Enzyme feed additives had positive effect on the reduction of the severity of pododermatitis. In conclusion feed enzyme additives of turkey diets resulted in an improvement in growth performance and feed utilization efficiency. Moreover, feed enzymes improved the litter quality in turkey houses which reflected positively on reduction of foot pad dermataits.
David Brown
University of Limpopo
South Africa
Title: Voluntary intake and palatability indices of pedi goats fed tanninferous Acacia karroo leaf meal by cafeteria method
Time : 12:30-12:50
Biography:
David Brown is a PhD student and a part-time lecturer at the University of Limpopo (Republic of South Africa). His PhD is entitled “Evaluation of mixtures of Acacia karroo leaf meal and SeteriaVerticillata hay for indigenous Pedi goat production in Limpopo province of South Africa. His study will generate information on the utilization of tanninferousAcacia karroo leaf meal by indigenous Pedi goat during the critical dry season. He is an agro-entrepreneur having been exposed to intensive practical-based training by Israelis expertise from University of Jerusalem, in the following areas: vegetable farming, poultry production, aquaculture, beekeeping and agricultural business.
Abstract:
Acacia karroo is regarded as a multipurpose tree with great potential for increasing goat productivity and can be considered as a cheap source of protein in communal goat production despite the presence of condensed tannins in the leaves. A study was conducted to determine preference intake and relative palatability indices ofAcaciakarroo fed to 5 growing male Pedi goats with an average body weight of 19.81 ± 1.83kg. A cafeteria feeding approach was used, thus, permitting free access to the diet of their choice. The position of the troughs was randomized each day to avoid “habit reflex”. Acacia karroo was offered simultaneously with Setariaverticillata hay in a mixed diet at five different levels (Diet 1: S80K20, Diet 2: S75K25, Diet 3: S70K30, Diet 4: S60K40 and Diet 5: S50K50) for a period of 23 days. The daily relative palatability index (RPI) obtained for each diet were subjected to analysis of variance with feeds as treatments and individual animals as replicates in a completely randomized design. Significant differences (P<0.05) in RPI among the diets were observed. Preference rankings (i.e. 1st to 5th) for the diets produced the following order: diet 5> diet 4> diet 3> diet 2> diet 1. Diet 5 appeared to be the most preferred by goats with RPI of 96.91%. Palatability indices were positively and significantly (P<0.05) predicted from dry matter intake of goats (r2 = 0.71). Similarly, intake and palatability indices of the diets related positively (P<0.05) with the nutrient and tannin contents. Result of this study indicates that tannin-rich plant when fed as a mixed diet can influence preference and intake by small ruminants. Toxin dilution could be a salient reason why ruminant animals select a mixed diet rather than a sole feed rich in secondary plant metabolites. Palatability studies could be used in designing supplemental feeding programs for ruminant livestock in the tropics.
Pinar Tatli Seven
University of Firat
Turkey
Title: The effects of propolis and royal jelly supplementation in diet on performance, egg characterizations, lipid peroxidation, antioxidan enzyme activity and mineral levels in Japanese quails
Time : 12:50-13:30
Biography:
Pinar Tatli Seven is a Professors in VeterinaryFaculty, and completed her PhD (Animal Nutrition and Nutritional Disease) from Faculty of Veterinary Medicine Firat University in the year 1999. She is a Vice Dean and Member of the Management Committee in Veterinary Faculty. She is also a present member in Animal Nutrition Science Society in Veterinary Society
Abstract:
Thisstudywasconductedtodeterminetheeffects of Propolis (P) andRoyalJelly (RJ) supplementation in diet on performance, eggcharacterizations, lipidperoxidation, antioxidanenzymeactivityand mineral levels in Japanesequails (Coturnixcoturnixjaponica). Forthisaim, a total of 216 Japanesequails of 43 days of agewereused. Theexperimentalgroups as follows: group1 (Control) wasfeed a basaldiet, group2 (propolis) wasfeed a basaldietsupplementedwith 4gr propolis/kgdiet, group3 (royaljelly)wasfeed a basaldietand500 mg/kg bwroyaljellygivenorally.Theeffect of royaljelly on the final body weightwasfoundto be significant (P<0.05). Feedconversion rate (FCR)wassignificantlyimproved in thepropolisgroupas comparedwithroyaljellygroup(P<0.05). Eggcharacteristicswerefoundhighest in thepropolisgroup in terms of shellweight (P<0.01), shellthickness (P<0.05) andshell rate (P<0.05) as comparedwithothergroups. Malondialdehyde levels in liver of allgroupssimilarfound(P> 0.05). Liversuperoxidedismutaseandcatalaseenzymeactivitiesof propolisgroupwerefoundsignificantly (P<0.05) higherthanthose of othergroupswhereasreducedglutathioneandglutathioneperoxidaseactivitieswerefoundhigher in royaljellygroup (P<0.05).Significantlyhigherlevels of Ca (P<0.05)werefound in serum of thepropolisgroupwhereasthose of Cu, Zn, Mg levelsweresimilar in allgroups.Theresults of thecurrentstudyshowedthatpropolissupplementationto4gr propolis/kg in quailsdietthemoreimprovedtoFCR, serum Calevelandantioxidantstatusthanthose ofroyaljellysupplementation 500 mg/kg bwquail.
A.Z.M. Salem
Autonomous University of the State of Mexico
Mexico
Title: Dietary xylanase addition and nutrient digestibility, rumen fermentation and duodenal fibre digestion in sheep
Time : 14:10-14:30
Biography:
A.Z.M. Salem had his PhD in 2002 from Faculty of Veterinary, Leon University, Spain. Now he is working as a Professor –Researcher at Faculty of Veterinary Medicine, Autonomous University of the State of Mexico, Mexico. He is specialist in Ruminant Nutrition and working with using the tree leaves extracts, exogenous enzymes, yeasts, …. As feed additives in animal nutrition. Dr. Salem has a lot of research papers published in ELSEVIER, SpringerLink, Wiley, … with some text books as well as registered patents in his field of research. He is currently in the editorial board of two international indexed journals in the JCR with impact factor (Journal of Integrative agriculture and Animal Nutrition and Feed technology) and he is a reviewer in a lot of scientific international journals.
Abstract:
The current study aimed to determine the effect of adding xylanase enzyme (XY) in a basal diet contain 30% corn stover on feed intake, ruminal fermentation, digestibility, duodenal fibre digestibility and some blood urea, phosphorus and triglycerides. Four males Rambouillet sheep (39±1.8 kg BW), with permanent rumen and duodenum cannulas were used in a 4×4 Latin square design. Sheep were distributed and fed on a basal diet without enzyme addition (XY0), or with addition of xylanase at 1 (XY1), 3 (XY3), and 6 (XY6) µL /g DM of the basal diet for 21 days. The duodenal neutral detergent fibre (NDF) and acid detergent fibre (ADF) digestibilities were determined at the days16 and 17. The treatments XY1 and XY3 increased (P <0.05) feed intake from different nutrients with no difference between XY0 versus XY1 and XY3 for crude protein, NDF and ADF intakes. Increased total tract digestibilities were obtained with XY6 with lower digestibility for XY0 and XY3 (P <0.05). Duodenal NDF and ADF digestibility were increased with increasing doses of XY (P <0.05). No effect was observed on measured blood parameters due to addition of XY. Both of XY1 and XY3 increased values (P <0.05) of ruminal pH at all sampling times (P <0.05). Increased (P <0.05) ruminalammonia-N and acetic acid concentrations were in XY6 and XY3 sheep. The lowest (P <0.05) daily methane production was in XY6 sheep. However, XY6 increased ruminal microbial protein production compared to other treatments. It could be concluded that addition of XY at 3 and 6 µL /g DM of the basal diet of Rambouillet sheep improved nutrients digestibility and ruminal fermentation without affecting blood parameters, and with low feed consumption.
Mardiati Zain
Andalas University
Indonesia
Title: Effect of Sacharomyces cerevisiae and Sapindus rarak Supplementation in diet based of Oil Palm Frond (OPF) on nutrient digestibility and body weight gain of Goat
Time : 14:30-14:50
Biography:
Mardiati Zain has completed her PhD at the age of 34 years from Bogor Agriculture Institute Indonesia. She is the head of feed technology laboratory at Department of Ruminant Nutrition, Faculty of Animal Science, Andalas University, West Sumatera. She has published more than 12 papers in reputed journals and has been serving as an editorial board member of repute.
Abstract:
This experiment was conducted to study the effect supplementation of S. cerevisiae and Sapindus rarak in diet OPF-based of nutrients digestibility and body weight gain of goat. The experiment was did in Ruminant Nutrition Laboratory of the Faculty of Animal Science Andalas University, Padang. Six teen male Ettawa Goat (40 + 2.75 kg (SEM) liveweight) were allocated to four treatments in a Randomised Block Design, with four replicates per treatment. The four treatments were (A) native grass + concentrate (B),OPF (previously treated with 3% urea) + concentrate, (C) Diet B + 1% S.cerevisae and (D) Diet C + 4% sapindus rarak. The animals were adjusted to their treatments over a 2 week preliminary period which was followed by an 8 week experimental period. Feed intake was determined daily and liveweight was measured every two week. Digestibility was measured by total faecal collection over 6 consecutive days on last week of experiment period. Data were analysed using the General Linear Model procedure in Statistical Analysis Software (SAS, version). The results showed that the dry matter digestibility of treatment B (50.74%) were significantly lower than treatments A, C and D respectively (67.37, 62.38 and 65.71%) and supplementation of S. cerevisiae was able to improve nutrient digestibility and body weight gain of cattle, but still low compared to control (A). Addition of 0.4% Sapindus rarak in treatment D (123 g / day) was able to provide digestibility and body weight gain similar to the control ration (132 g / day). It can be concluded that the use of OPF as a substitute for grass would give the same results with the grass when added 0.1% S. cerevisiae and 4% Sapindus rarak.
Conference Thando Mpendulo
University of KwaZulu-Natal
South Africa
Title: Influence of water deprivation on intake and growth performance of Nguni goats
Time : 14:50-15:10
Biography:
I (Conference Thando Mpendulo) am a 25 year old doing final year towards my PhD in Animal Science at the University of KwaZulu-Natal. I have published some of my findings from my Masters thesis, and have attended local and international conferences held by the South African Society for Animal Science and the American Society for Animal Sciences, respectively.
Abstract:
The objective of the study was to determine the influence of varying levels of water deprivation on intake and growth performance of Nguni goats. A total of 36 Nguni does (initial weight (18±3.2 kg) were used in the study. The goats were housed in individual cages and subjected to varying periods of water deprivation (0; 24; 48 h), with ad libitum access to Medicago sativa hay. Average daily water intake (ADWI), average daily feed intake (ADFI), water to feed ratio (WFR), average daily gain (ADG) and feed conversion ratio (FCR) were determined weekly. Average daily water intake (ADWI) was largest from goats deprived of water for 48 h compared to those deprived of water for 24 h and 0 h (P <0.05). Average daily feed intake (ADFI) was largest for goats deprived of water for 48 h compared to those deprived of water for 24 h and 0 h in week 1 and week 4 of the feeding period (P <0.01). In week 2 and 3 of the feeding period, ADFI was smallest for goats deprived of water for 0 h compared to those deprived of water for 24 h and 48 h (P <0.01). The ADG and FCR declined as the level of water deprivation was increased (P <0.01). It was concluded that water deprivation increased water and feed intake, whereas average daily gain and feed conversion declined as the water deprivation period was increased, thereby impacting on the productivity of Nguni goats.
Conference Thando Mpendulo
University of KwaZulu-Natal
South Africa
Title: Influence of water deprivation on intake and growth performance of Nguni goats
Time : 14:50-15:10
Biography:
I (Conference Thando Mpendulo) am a 25 year old doing final year towards my PhD in Animal Science at the University of KwaZulu-Natal. I have published some of my findings from my Masters thesis, and have attended local and international conferences held by the South African Society for Animal Science and the American Society for Animal Sciences, respectively.
Abstract:
The objective of the study was to determine the influence of varying levels of water deprivation on intake and growth performance of Nguni goats. A total of 36 Nguni does (initial weight (18±3.2 kg) were used in the study. The goats were housed in individual cages and subjected to varying periods of water deprivation (0; 24; 48 h), with ad libitum access to Medicago sativa hay. Average daily water intake (ADWI), average daily feed intake (ADFI), water to feed ratio (WFR), average daily gain (ADG) and feed conversion ratio (FCR) were determined weekly. Average daily water intake (ADWI) was largest from goats deprived of water for 48 h compared to those deprived of water for 24 h and 0 h (P <0.05). Average daily feed intake (ADFI) was largest for goats deprived of water for 48 h compared to those deprived of water for 24 h and 0 h in week 1 and week 4 of the feeding period (P <0.01). In week 2 and 3 of the feeding period, ADFI was smallest for goats deprived of water for 0 h compared to those deprived of water for 24 h and 48 h (P <0.01). The ADG and FCR declined as the level of water deprivation was increased (P <0.01). It was concluded that water deprivation increased water and feed intake, whereas average daily gain and feed conversion declined as the water deprivation period was increased, thereby impacting on the productivity of Nguni goats.
Guluzar Tuna Kelestemur
Firat University
Turkey
Title: Effects of the ß-Carotene on the growth performance and skin pigmentation of rainbow trout(Oncorhynchus mykiss, W.1792)
Time : 15:10-15:30
Biography:
1998 /License /University of Firat, Faculty of Fisheries, Elazig/TURKEY 2001/MSc/University of Firat, Faculty of Fishheries, Department of Fisheries, Elazig/TURKEY/ The effect of corn gluten in different ratio on the growth performance and feeding efficiency of tilapia (Tilapia nilotica, Linnaeus, 1758). 2009/PhD/University of Firat, Faculty of Fishheries, Department of Fisheries, Elazig/TURKEY/ The Effects of A and E Vitamins on Growth, Feed Conversion and Some Tissues of Juvenil Rainbow Trout (Oncorhynchus mykiss W. 1792) In Oxygen Stress
Abstract:
In this study, the effect of dietary supplementation of β-carotene (beta carotene) on growth and skin pigmentation of rainbow trout.Fishwere fed withdietscontaining 30 and 70 mg β-carotene kg-1, andwithoutsupplementedbasaldietfor 12 weeks. Weight gain (WG), specific growth rate (SGR) and survival rate (SUR) in the C group was significantly lower (p<0.05) than beta carotene supplemented diet groups. Feed concervation ratio (FCR) in the C was significantly lower (p<0.05) than β-carotene supplemented diet groups. But PER of fish did not differ among the diet groups (p>0.05). Crude protein value of fish meat was higher in beta-carotene supplemented diet groups (P<0.05) than control diet group. But, crude lipid and ash were not statistically different among the groups (p>0.05). The lowest carotenoid concentration levels in the lateral and tail regions of the fishes in the experimental groups have been obtained in the C (control) group (lateral region: 0.263±0.021 ug/g; tail ragion: 0.009±0.002 ug/g) while the highest cumulative values have been determined in the fishes of β70 groups (lateral region: 0.643±0.46 ug/g; tail region: 0.124±0.015 ug/g).
Dragan Sefer
Belgrade University
Serbia
Title: The effects of probiotic supplementation in weaned pigs diet
Time : 15:30-15:50
Biography:
Dragan Sefer has completed his PhD in June 2002, at the age of 39, at the Faculty of Veterinary Medicine, Department of Nutrition and Botany of Belgrade University. Since February 2007 he became head of this Department and since December 2014 he has been engaged as a full professor. He published more than 150 papers in national and international journals (more than 10 in reputed journals) and two books (\\\"General nutrition\\\" and \\\"Feed safety for animals\\\") intended for the students at the Faculty of Veterinary Medicine.
Abstract:
In order to investigate the efficiency of using probiotics in the diet of weaned pigs under the commercial conditions of rearing, feeding trial was organized. The experiment included 24 pigs (Landrace x Yorkshire), which were immediately after the weaning (weaned at age of 35 days) distributed randomly in two feeding treatments. A control group of pigs (K) received a diet of standard feed and chemical composition while the experimental group (O-I) received the same diet, but with the addition of probiotic preparation (B. subtilis and B. licheniformis). The experiment lasted 40 days, after which the pigs were sacrificed and samples were taken for further physicochemical and histological examination. At the end of the experiment the control group achieved body weight (25.32±6.31kg), average daily gain (0.42±0.12kg), feed consumption (0.89kg) and feed to gain ratio (2.119) common for a given race, conditions of nutrition and housing. Experimental group, that received probiotics preparation, achieved higher body mass (27.98±4.76kg), average daily gain (0.49±0.09kg), feed consumption (0.96kg) and lower feed to gain ratio (1.959kg) compared to the control group. The height and width of the villi in the jejunum were significantly higher (p<0.001) in the experimental group compared to the control. Crypt depth in the jejunum, and the pH value of the jejunum and the cecum were not affected by applied treatment (p>0.05). Obtained results indicate that probiotic supplementation in the diet of weaned piglets has its nutritive justification.
Yetti Marlida
Andalas University
Indonesia
Title: The fiber fraction of Oil Palm Trunk treated by ligninase termostable produced by thermophilic Bacteria isolated from hot spring of West Sumatera, Indonesia
Time : 15:50-16:10
Biography:
Yetti Marlida has completed her PhD at the age of 36 years from Universiti Putra Malaysia and postdoctoral studies from Cornell University, Ithaca, USA. She is the head of feed technology laboratory at Department of Animal Nutrition and Feed Technology, Faculty of Animal Science, Andalas University, West Sumatera. She has published more than 15 papers in reputed journals and has been serving as an editorial board member of repute.
Abstract:
The research purposed to find out interction between oil palm trunk concentrations and ligninase doses to increase the fiber fractions of oil palm trunk before using as animal feeding. The oil palm trunk treated by ligninase termostable aimed to hidrolysis of lignin as cell wall through separation of fiber fraction such as: ADF, NDF, cellulose, and hemicellulose. The design used in this study was a completely randomized design (CRD) factorial using 2 factors: factor A consists of three levels of ligninase enzymes A1: 250 U/kg, A2: 500 U/kg,and A3: 750 U/kg. Factor B is the concentration of oil palm trunks B1: 40%; B2: 60% were repeated 3 times. The results showed that there is highly significantly effect of interactions (P<0.01) between levels of ligninase enzyme (factor A) with the concentration of oil palm trunks (factor B) to ADF, NDF, cellulose, hemicellulose and lignin contents of hydrolisis products of oil palm trunk.The optimum concentration of oil palm trukns was 60% (v/w) and 750 U/kg of ligninase thermostable that were improve of the fiber fractions quality to easily digested by ruminantia animal such as: cow, sheep, buffalo and goat.
Mirnawati
Andalas University
Indonesia
Title: The effect of types of mold, fermentation duration and Palm Kernel cake substrate composition on Cellulase and Mannanase enzyme activities
Time : 16:25-16:45
Biography:
Mirnawati has completed her PhD on 2010 from University of Andalas. She is the study program secretary of Animal Science Faculty, Department of Poultry Nutrition, Andalas University, West Sumatera. She has published more than 8 papers in reputed journals.
Abstract:
The objective of this research is to determine the types of mold, the substrate composition (Palm kernel cake dose) and the optimum fermentation duration toward Cellulase, Mannanase and Protease in producing enzymes from cellulotic and mananolitic fungi in order to be used in poultry rations that contain palm kernel cake (PKC). The utilization of the aforementioned enzymes are expected to increase the usage of PKC in poultry rations. The statistical method applied in this research is the Completely Randomized Design (CRD) with a 3x3x3 factorial arrangement with 3 replications (Steel and Torrie, 1991). Factor A is the types of molds to be used which are: Aspergillus niger as A1, Eupenicillium javanicum as A2, and Sclerotium rolfsii as A3. Factor B is the substrate composition of PKC which are: 5% of PKC as B1, 8% of PKC as B2, and 11% of PKCas B3. Factor C is the fermentation duration which are: 36 hours as C1, 48 hours as C2, and 60 hours as C3. The variables measured are the enzyme activities of Cellulase enzyme (U/ml), Mannanase enzyme (U/ml), and Protease enzyme (U/ml). The result of variance analysis showed that there is an interaction among the types of molds, the substrate composition, and the fermentation duration toward Cellulase, Mannanase and Protease enzyme activities, while each factor in the types of molds, the substrate composition and the fermentation duration is highly significant (P<0.01) to Cellulase, Mannanase and Protease enzyme activities. Based on the results obtained in this study, it can be concluded that Sclerotium rofsii provides an optimum enzyme activities for Cellulase, Mannanase and Protease enzymes with enzyme activity of 21.89 U/ml, 24.58 U/ml, and 22.92 U/ml respectively, compared to Eupenicillium javanicum and Aspergillus niger.
Ozlem Emir Coban
Firat University
Turkey
Title: Improving the quality of Catfish Burger by adding Zataria Multi flora Boiss. Essential Oil
Time : 16:45-17:05
Biography:
Ozlem Emir Coban is a Associate Professor in Faculty of Fisheries at Firat University, Turkey.
Abstract:
Essential oils are becoming increasingly popular in resent years as naturally occur in ganti oxidantand antimicrobial agents.For this reason, the present study aimed to investigate the effect of addition of different concentrations (0.2, 0.4%) of Zataria multiflora Boiss essential oil (ZMEO) on the quality of catfish burger during storage at 4 oC. The obtained results indicated that the best sensory quality was attained at the highest ZMEO concentration (0.4) compared with control samples. The storage time significantly affected the TBA (Thiobarbituric acid) values, as treated samples with ZMEO showed lower values of TBA compared with the control samples. Regarding to microbial load, samples treated with 0.2 and 0.4% of ZMEO revealed significant reduction at 9th day of storage as compared with the control samples.
Amlan Kumar Patra
West Bengal University of Animal and Fishery Sciences
India
Title: Development of linear and non-linear statistical models for prediction of enteric methane emission from cattle in tropical production systems
Biography:
Amlan Patra earned his PhD in 2004 from Indian Veterinary Research Institute in Animal Nutrition. He worked at American Institute for Goat Research, USA as a Post-doctoral Research Associate and at The Ohio State University, USA through a BOYSCAST fellowship from India. He joined West Bengal University of Animal and Fishery Sciences as Assistant Professor in 2007. He has authored over 80 articles and edited a Springer book. He has served on the Editorial Board of the journal Animal Feed Science and Technology and currently is an Editor, as well as being the Review Editor of Frontiers in Microbiology.
Abstract:
The objective of this study was to develop linear and nonlinear statistical models to predict enteric methane emission (EME) from cattle in the tropics based on dietary variables. A database from 35 publications, which included 142 mean observations of EME measured on 830 cattle, was constructed to develop EME prediction models. Several extant EME prediction equations developed for North-American and European cattle were also evaluated for suitability of those equations in this dataset. The simple linear equation that predicted EME with high precision and accuracy was methane (MJ/day) = 1.29(±0.906) + 0.878(±0.125) × dry matter intake (kg/day) (DMI) [RMSPE = 31.0% with 92% of mean square prediction error (MSPE) being random error; R2=0.70]. Multiple regression equations that predicted slightly better than simple prediction equations were methane (MJ/day) = 0.910(±0.746) + 1.472(±0.154) × DMI – 1.388(±0.451) × feeding level - 0.669(±0.338) × acid detergent fiber intake (g/kg); n = 91; RMSPE = 4.22 [RMSPE = 22.2%, with 99.6% of MSPE from random error; R2=0.84]. Among the nonlinear equations developed, Mitscherlich model [methane (MJ/day) = 71.47(±22.14.6) × (1 - exp{-0.0156(±0.0051) × DMI] performed better than simple linear and other nonlinear models, but the predictability and goodness of fits of the equation did not improve compared with the multiple regression models. Extant equations overestimated EME, and many extant models had low accuracy and precision. The equations developed in this study will be useful for improving national methane inventory preparation, and for a better understanding of dietary factors influencing EME for tropical cattle feeding systems.
B.M. Bhanderi
National Dairy Development Board (NDDB)
India
Title: Recent technological advances in animal nutrition for enhancing buffalo productivity in sub-tropical conditions
Biography:
Babulal M Bhanderi is a Animal Nutrition Scientist-II at Animal Nutrition Division National Dairy Development Board
Abstract:
In South Asia, India has the largest buffalo population and 99 per cent of milk producing buffaloes are owned by small to medium landholding farmers, fed primarily on crop residues and agro-industrial by-products. As there are limited feed and fodder resources in the country, available feed resources need to be utilized judiciously, with value addition. Through appropriate feeding practices, milk production and the productive life of buffaloes can be improved. In view of this, NDDB has been assisting different agencies in setting up bypass protein/fat, mineral mixture, urea molasses block and cattle feed plants and developing strategic feed supplements. Protein meals should be given suitable chemical treatment, so as to improve their efficiency of utilization for various production purposes. The process is termed as bypass protein technology, which need to be used on large-scale to treat the available protein meals for improving their rumen bypass value for improved growth and milk production. High yielding buffaloes during transition period need to be supplemented with bypass fat to combat early lactation stresses, reduce body weight loss and enhance milk production and reproduction efficiency. Different type of compound cattle feeds need to be manufactured for various categories of growing and lactating buffaloes appropriate to the area and season, including feed for dry pregnant animals and young buffalo calves. As minerals deficiency in feed resources varies in different agro-climatic conditions, all the categories of buffaloes in different zones need to be supplemented with area specific mineral mixtures for improved growth, milk production and reproduction efficiency. As crop residues form the bulk of animals’ diet and poor in digestibility, efficiency of utilization of crop residues can be improved, if supplemented with deficient nutrients through urea molasses mineral block (UMMB) licks. Lactating buffaloes are usually fed one or two locally available concentrate feed ingredients, grasses and crop residues in sub-tropical countries. On feeding a balanced ration and large-scale implementation of the above-mentioned technological advancements in the field of animal nutrition, it should be possible to enhance milk production and productive life of buffaloes in the country.
Ameur Ameur Abdelkader
University of Bouira
Algeria
Title: Milk protein polymorphism study in two Algerian sheep breeds-Hamra and Ouled Djellal
Biography:
Ameur Ameur Abdelkader, he preparing his PhD studies at the National Superior School of Agronomy (ENSA), Algeria. His research on the genetic polymorphism of sheep milk of locals breeds. He is a member of a research project for the characterization and improvement of local Algerian sheep breeds. Now he is the head of Department of Agronomy and permanent teacher in the University of Bouira (UAMOB). He was an engineer in the laboratory of veterinary medicine.
Abstract:
In sheep, the polymorphism of major milk proteins is reduced as compared with other ruminant species, like cattle and goats. As in other ruminant species, in sheep these polymorphisms were studied relative to milk quantity, quality and its manufacturing properties or for authenticity identification of dairy products. In Algeria, data concerning the characterization of the sheep breeds in the six loci codifying for major milk proteins genes are almost absent. The purpose of our study was to determine milk quality indices as well as milk protein polymorphism in local sheep breed, using 60 samples of milk from two local sheep breeds Hamra and Ouled Djellal. Our work consisted in the isolation and characterization of milk proteins. For this, we used the precipitation of caseins Phi (pH 4.6). After extraction, purification and assay, both casein and serum protein fractions were then assayed by the Bradford method and controlled by polyacrylamide gel electrophoresis (PAGE) in the different conditions (native, in the presence of urea and in the presence of SDS). The electrophoretic pattern of milk samples showed the presence similarities of four major caseins variants (αs1-, αs2-β-and k-casein) and two whey proteins (β-lactoglobulin, α-lactalbumin) of two races Hamra and Ouled Djellal. But compared to bovine milk, they have helped to highlight some peculiarities as related to serum proteins (α La β Lg) as caseins, including αs1-Cn.