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Prediction of net energy of feeds for broiler chickens

Animal Nutrition 2024年第1期16卷 241-250页

作者： Aye-Cho Tay-Zar Manoosak Wongphatcharachai Pairat srichana Pierre-André Geraert Jean Noblet Charoen Pokphand Foods Public Company Limited (CPF) adisseo france s.a.s. INRAE

Net energy(NE) enables the prediction of more accurate feed energy values by taking into account the heat increment which is approximately 25% of apparent metabolizable energy(AME) in ***, application of NE in poultry industry has not been practiced widely. To predict the NE values of broiler diets, 23 diets were prepared by using 13 major ingredients(wheat, corn, paddy rice,broken rice, cassava pellets, full-fat soybean, soybean meal, canola meal, animal protein, rice bran, wheat bran, palm kernel meal and palm kernel oil). The diets were formulated in order to meet the birds' requirements and get a wide range of chemical compositions(on DM basis; 33.6% to 55.3% for starch;20.8% to 28.4% for CP, 2.7% to 10.6% for ether extract [EE] and 7.0% to 17.2% for NDF), with low correlations between these nutrients and low correlations between the inclusion levels of ingredients allowing for the calculation of robust prediction equations of energy values of diets or ingredients. These diets were fed to Ross 308 broilers raised in 12 open-circuit respiratory chambers from 18 to 23 d of age(4 birds per cage) and growth performance, diet AME content and heat production were measured, and dietary NE values were calculated. The trial was conducted on a weekly basis with 12 diets measured each week(1per chamber), 1 of the 23 diets(reference diet) being measured each week. Each diet was tested at least 8times. In total, 235 energy balance data values were available for the final calculations. Growth performance, AME(15.3 MJ/kg DM on average) and AME/GE(79.4% on average) values were as expected. The NE/AME value averaged 76.6% and was negatively influenced by CP and NDF and positively by EE in connection with efficiencies of AME provided by CP, EE and starch for NE of 73%, 87% and 81%,respectively. The best prediction equation was: NE =(0.815 × AME)—(0.026 × CP) +(0.020 × EE)—(0.024 × NDF) with NE and AME as MJ/kg DM, and CP, EE and NDF as % of DM. The NE prediction

关键词： Net energy Broiler Poultry Feed evaluation Energy system

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Re-evaluation of recent research on metabolic utilization of energy in poultry: Recommendations for a net energy system for broilers

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Animal Nutrition 2024年第1期16卷 62-72页

作者： Jean Noblet Aye-Cho Tay-Zar shu-Biao Wu Pairat srichana Pierre Cozannet Pierre-Andre Geraert Mingan Choct INRAE Charoen Pokphand Foods Public Company Limited (CPF) school of Environmental and Rural science University of New England adisseo france s.a.s.

Different energy systems have been proposed for energy evaluation of feeds for domestic animals. The oldest and most commonly used systems take into account the fecal energy loss to obtain digestible energy(DE), and fecal, urinary and fermentation gases energy losses to calculate metabolizable energy(ME). In the case of ruminants and pigs, the net energy(NE) system, which takes into account the heat increment associated with the metabolic utilization of ME, has progressively replaced the DE and ME systems over the last 50 years. For poultry, apparent ME(AME) is used exclusively and NE is not yet used widely. The present paper considers some important methodological points for measuring NE in poultry feeds and summarizes the available knowledge on NE systems for poultry. NE prediction equations based on a common analysis of three recent studies representing a total of 50 complete and balanced diets fed to broilers are proposed; these equations including the AME content and easily available chemical indicators have been validated on another set of 30 diets. The equations are applicable to both ingredients and complete diets. They rely primarily on an accurate and reliable AME value which then represents the first limiting predictor of NE value. Our analysis indicates that NE would be a better predictor of broiler performance than AME and that the hierarchy between feeds is dependent on the energy system with a higher energy value for fat and a lower energy value for protein in an NE system. Practical considerations for implementing such an NE system from the commonly used AME or AMEn(AME adjusted for zero nitrogen balance) systems are presented. In conclusion, there is sufficient information to allow the implementation of the NE concept in order to improve the accuracy of feed formulation in poultry.

关键词： Poultry Feed evaluation Net energy Energy system

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Dietary methionine sources and levels modulate the intestinal health status of broiler chickens

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Animal Nutrition 2023年第4期15卷 242-255页

作者： Lu Gong Tahir Mahmood Yves Mercier Huiping Xu Xiaodan Zhang Yizhu Zhao Yimeng Luo Yuming Guo state Key Laboratory of Animal Nutrition College of Animal Science and TechnologyChina Agricultural UniversityBeijing100193China adisseo france s.A.s 03600CommentryFrance

Given the key role of methionine in biological processes,adequate methionine should be provided to meet the nutritional ***-2-hydroxy-4-(methylthio)-butanoic acid(DL-HMTBA)has been considered as an important source of ***,the effects of different sources and levels of methionine on the intestinal health status have not been clarified *** experiment was carried out to investigate the effects of different dietary sources and levels of methionine on the intestinal epithelial barrier,inflammatory cytokines expression,ileal morphology,microbiota composition,and cecal short chain fatty acids(sCFA)*** this purpose,720 male Arbor Acre broiler chicks at 1 d old were randomly assigned to a 2×3 factorial arrangement with 2 methionine sources(DL-methionine and DLHMTBA)and 3 total sulfur amino acids(TsAA)levels(80%,100%,and 120%of Arbor Acre recommendation).The results showed that DL-HMTBA supplementation promoted intestinal physical barrier at both gene expression level of claudin-1 and serum diamine oxidase level(Pssion was down-regulated by dietary DL-HMTBA supplementation compared with the DL-methionine group(Pssion of claudin-1 and zonula occluden-1(ZO-1)were observed in the low-TsAA treatment on d 14(Ps this treatment increased the expression of IL-1βand IL-6(Ps height to crypt depth ratio was high(PsAA ***,DL-HMTBA supplementation optimized the microbiota of the ileum especially the relative abundance of Lactobacillus,where the digestion and absorption were completed,and elevated the concentrations of sCFA(acetate,propionate,and butyrate)in the cecal content on d 21(Psion,dietary DL-HMTBA supplementation improved the intestinal barrier function,immune homeostasis and optimized the microbiota to promote intestinal health status in broiler chickens.

关键词： Chicken Methionine 2-Hydroxy-4-(methylthio)-butanoic acid Intestinal health Intestinal barrier

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In vitro gastrointestinal digestion study of two wheat cultivars and evaluation of xylanase supplementation

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Journal of Animal science and Biotechnology 2015年第3期6卷 355-368页

作者： Mickael Lafond Bernard Bouza sandrine Eyrichine Friedrich Rouffineau Luc saulnier Thierry Giardina Estelle Bonnin Aurélie Preynat ism2-BiosCiences UMR 7313 Aix Marseille Université adisseo france s.a.s. Centre d'Expertise et de Recherche en Nutrition INRA UR 1268-BiopolymeresInteractions-Assemblages

Background： The filamentous fungus Talaromyces versatifis is known to improve the metabolizable energy of wheat- based poultry diets thanks to its ability to produce a pool of CAZymes and particularly endo-β（1,4）-xylanases. In order to appreciate their in vivo mode of action, the supplementation effect of two of its xylanases, XynD and XynB from families GH10 and GHll respectively, have been evaluated on two different wheat cultivars Caphorn and Isengrain, which were chosen amongst 6 varieties for their difference in non starch polysaccharides content and arabinoxylan composition. Results： Polysaccharides digestion was followed during 6 h along the digestive tract using the TNO gastrointestinal model-1, to mimic monogastric metabolism. Polysaccharide degradation appeared to occur mainly at the jejunal level and was higher with Isengrain than with Caphorn. For both cultivars, XynD and XynB supplementation increased notably the amount of reducing end sugars into the jejuno-ileal dialysates, which has been confirmed by a valuable increase of the soluble glucose into the jejunal dialysates. Conclusions： The amounts of arabinose and xylose into the dialysates and ileal deliveries increased consequently mainly for Caphorn, suggesting that XynD and XynB supplementation in wheat-based diet could alleviate the anti-nutritional effects of arabinoxylans by limiting the physical entrapment of starch and could increase the available metabolizable energy.

关键词： in vitro TNO gastrointestinal model-1 Talaromyces versatilis Wheat cultivars XynB XynD

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Dietary supplementation with 2-hydroxy-4-methyl(thio)butanoic acid and DL-methionine improves productive performance,egg quality and redox status of commercial laying ducks

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Animal Nutrition 2023年第3期14卷 101-110页

作者： Yanan Zhang Zhiwei Zhuang Tahir Mahmood Yves Mercier Yongyan Jin Xuebing Huang Kaichao Li shuang Wang Weiguang Xia shenglin Wang Miao Yu Wei Chen Chuntian Zheng Institute of Animal science Guangdong Academy of Agricultural SciencesKey Laboratory of Animal Nutrition and Feed Science(South China)of Ministry of AgricultureState Key Laboratory of Livestock and Poultry BreedingGuangdong Public Laboratory of Animal Breeding and NutritionGuangdong Key Laboratory of Animal Breeding and Nutrition510640GuangzhouChina Institute of Life science and Engineering Foshan University528200FoshanChina adisseo france s.a.s.Centre of Excellence and Research in Nutrition CommentryFrance

This experiment aimed to study the effects of supplemental methionine sources,2-hydroxy-4 methyl(thio)butanoic acid(HMTBa)and DL-Methionine(DL-Met),on productive performance,egg quality,and redox status of laying ducks.A total of 792 healthy 25-wk-old Longyan laying ducks with similar body weights were randomly allotted to 11 treatment *** treatment group had 6 replicates of 12 *** trial lasted for 16 *** were fed a basal deficient diet(Met:0.24%;Met+Cys:0.51%)or supplemented with DL-Met or HMTBa at 0.05%,0.12%,0.19%,0.26%,and 0.33%of diet,*** with the basal diet,supplementation with either DL-Met or HMTBa increased the average egg weight,egg mass,and decreased feed to egg ratio during the whole trial period(Ps ratio to total egg weight were increased,but yolk and shell ratio,albumen height,Haugh unit and shell breaking strength were decreased(Psupplementation increased taurine,methionine,leucine,tryptophan and arginine content,and decreased serine and lysine content in plasma(Pstatus of laying ducks was improved by enhancing the glutathione peroxidase and catalase activities,glutathione content and its ratio relative to glutathione(oxidized)content and decreasing malondialdehyde content and increasing mRNA expression of superoxide dismutase-1,glutathione peroxidase-1,hemeoxygenase-1 and nuclear factor-like 2 in liver and ileum with the supplementation of DL-Met or HMTBa(Pstatus measured by average area proportion lipid droplet was improved with supplementation of DL-Met or HMTBa(Ps height and villus height to crypt depth ratio in the ileum and the ileal gene expression of tight junction protein and occludin were increased with DL-Met or HMTBa supplementation(Pse results suggested that the efficacy of dietary supplementation of HMTBa was similar to DL-Met,and it ranged from 98%to 100%for productive

关键词： DL-Methionine 2-Hydroxy-4 methyl(thio)butanoic acid Productive performance Efficacy Laying duck

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Lentinan administration alleviates diarrhea of rotavirus-infected weaned pigs via regulating intestinal immunity

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Journal of Animal science and Biotechnology 2021年第3期12卷 1125-1137页

作者： Xiangqi Fan Haiyan Hu Daiwen Chen Bing Yu Jun He Jie Yu Junqiu Luo Erik Eckhardt Yuheng Luo Jianping Wang Hui Yan Xiangbing Mao Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education Key laboratory of Animal Disease-resistant Nutrition and Feed of China Ministry of Agriculture and Rural AffairsKey laboratory of Animal Disease-resistant Nutrition of Sichuan ProvinceInstitute of Animal NutritionSichuan Agricultural UniversityNo.211Gongpinghuimin RoadWenjiang DistrictChengdu 611130Sichuan ProvincePeople’s Republic of China adisseo sAs Center of Excellence and Research in Nutrition03600 MalicorneFrance

Background:Lentinan(LNT)may regulate many important physiological functions of human and *** study aimed to verify whether LNT administration could relieve diarrhea via improving gut immunity in rotavirus(RV)-challenged weaned ***:Twenty-eight weaned pigs were randomly fed 2 diets containing 0 or 84 mg/kg LNT product for 19 d(n=14).RV infection was executed on d *** extracting polysaccharides from LNT product,its major monosaccharides were ***,LNT polysaccharide was used to administrate RV-infected IPEC-J2 ***:Dietary LNT supplementation supported normal function of piglets even when infected with RV,as reflected by reduced growth performance loss and diarrhea prevalence,and maintained gut immunity(Psaccharide was isolated from LNT product,which molecular weight was 5303 Da,and major monosaccharides included glucose,arabinose and *** RV-infected IPEC-J2 cells,this polysaccharide significantly increased cell viability(Psignificantly increased anti-virus immunity via regulating pattern recognition receptors and host defense peptides(Psion:Those results suggest that LNT administration increases the piglets’resistance to RV-induced stress,likely by supporting intestinal immunity.

关键词： Gut immunity IPEC-J2 cells Lentinan Rotavirus Weaned pigs

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Peripartal rumen-protected methionine supplementation to higher energy diets elicits positive effects on blood neutrophil gene networks, performance and liver lipid content in dairy cows

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Journal of Animal science and Biotechnology 2016年第3期7卷 391-402页

作者： Cong Li Fernanda Batistel Johan samir Osorio James K.Drackley Daniel Luchini Juan J.Loor Key Laboratory of Animal Genetics and Breeding of Ministry of Agriculture National Engineering Laboratory of Animal BreedingCollege of Animal Science and TechnologyChina Agricultural University Department of Animal sciences and Division of Nutritional sciences University of Illinois Department of Animal and Rangeland sciences Oregon State University Ruminant Technical services ADISSEO NA

Background： Main objectives were to determine to what extent smartamine M（sM） supplementation to a prepartal higher-energy diet could alter neutrophil（PMN） and liver tissue immunometabolic biomarkers, and whether those responses were comparable to those in cows fed a prepartal lower-energy diet（CON）.Results： Twenty-eight multiparous Holstein cows were fed CON（NEL= 1.24 Mcal/kg DM） during d-50 to d-22 relative to calving. From d-21 to calving, cows were randomly assigned to a higher-energy diet（OVE, n = 9; NEL= 1.54 Mcal/kg DM）, OVE plus sM（OVE ＋ sM, n = 10; sM = 0.07 % of DM） or remained on CON（n = 9）. Al cows received the same basal lactation diet（NEL= 1.75 Mcal/kg DM）. supplementation of sM（OVE ＋ sM） continued until 30 d postpartum. Liver biopsies were harvested at d-10, 7, and 21 relative to parturition. Blood PMN isolated at-10, 3, and 21 d relative to calving was used to evaluate gene expression. As expected, OVE increased liver lipid content postpartum; however,cows fed OVE ＋ sM or CON had lower concentrations than OVE. Compared with OVE, cows in CON and OVE ＋ sM had greater DMI postpartum and milk production. Furthermore, cows fed OVE ＋ sM had the greatest milk protein and fat percentage and lowest milk sCC despite having intermediate PMN phagocytic capacity. Adaptations in PMN gene expression in OVE ＋ sM cows.a.s.ciated with the lower sCC were gradual increases from-10 to 21 d in genes that facilitate migration into inflammatory sites（sELL, ITGAM）, enzymes essential for reducing reactive oxygen metabolites（sOD1, sOD2）, and a transcription factor（s） required for controlling PMN development（RXRA）. The greater expression of TLR4 on d 3, key for activation of innate immunity due to inflammation, in OVE compared with CON cows suggests a more pronounced inflammatory state. Feeding OVE ＋ sM dampened the upregulation of TLR4, despite the fact that these cows had similar expression of the pro-inflammatory genes NFKB1 and TNF as OVE. Cows in CON had lower overall expr

关键词： Blood neutrophil Gene expression Methionine

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supplemental smartamine M in higher-energy diets during the prepartal period improves hepatic biomarkers of health and oxidative status in Holstein cows

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Journal of Animal science and Biotechnology 2017年第3期8卷 624-635页

作者： Mario Vailati-Riboni Johan s.Osorio Erminio Trevisi Daniel Luchini Juan J.Loor Mammalian Nutri Physio Genomics Department of Animal Sciences and Division of Nutritional SciencesUniversity of IllinoisUrbanaIL 61801USA Istituto di Zootecnica Facolt àdi scienze Agrarie Alimentari e AmbientaliUniversità Cattolica del Sacro Cuore29122 PiacenzaItaly adisseo NA AlpharettaGA 30022USA. Dairy and Food science Department South Dakota State University1111 College Ave113H Alfred DairyScience HallBrookings SD 57007USA

Background： Feeding higher-energy prepartum is a common practice in the dairy industry. However, recent data underscore how it could reduce performance, deepen negative energy balance, and augment inflammation and oxidative stress in fresh cows. We tested the effectiveness of rumen-protected methionine in preventing the negative effect of feeding a higher-energy prepartum. Multiparous Holstein cows were fed a control lower-energy diet（CON, 1.24 Mcal/kg DM; high-straw） during the whole dry period（-50 d）, or were switched to a higher-energy（OVE, 1.54 Mcal/kg DM）, or OVE plus smartamine M（OVE ＋ sM; adisseo NA） during the last 21 d before *** cows received the same lactation diet（1.75 Mcal/kg DM）. smartamine M was top-dressed on the OVE diet（0.07% of DM） from -21 through 30 d in milk（DIM）. Liver samples were obtained via percutaneous biopsy at -10, 7 and 21 DIM. Expression of genes.a.s.ciated with energy and lipid metabolism, hepatokines, methionine cycle, antioxidant capacity and inflammation was ***： Postpartal dry matter intake, milk yield, and energy-corrected milk were higher in CON and OVE ＋ sM compared with OVE. Furthermore, milk protein and fat percentages were greater in OVE ＋ sM compared with CON and OVE. Expression of the gluconeogenic gene PCK1 and the lipid-metabolism transcription regulator PPARA was again greater with CON and OVE ＋ sM compared with OVE. Expression of the lipoprotein synthesis enzyme MTTP was lower in OVE ＋ sM than CON or OVE. similarly, the hepatokine FGF21, which correlates with severity of negative energy balance, was increased postpartum only in OVE compared to the other two groups. These results indicate greater liver metabolism and functions to support a greater production in OVE ＋ sM. At 7 DIM, the enzyme GsR involved in the synthesis of glutathione tended to be upregulated in OVE than CON-fed cows, suggesting a greater antioxidant demand in overfed cows. Feeding OVE ＋ sM resulted in lower similar express

关键词： Energy Methionine Nutrigenomics Transition period

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