检索结果-南通市图书馆

Effects of dietary oil sources and fat extraction methods on apparent and standardized ileal digestibility of fat and fatty acids in growing pigs

引用

Journal of Animal Science and Biotechnology 2023年第2期14卷 760-770页

作者： Lu Wang Wenjun Gao Junyan Zhou Huangwei Shi Tenghao Wang Changhua Lai State Key Laboratory of Animal Nutrition Ministry of Agriculture Feed Industry CentreChina Agricultural UniversityHaidian DistrictNo.2 Yuanmingyuan West RoadBeijing 100193P.R.China Beijing Bio-Feed Additives Key Laboratory China Agricultural UniversityBeijing 100193P.R.China Zhejiang Qinglian Food Co. Ltd.Jiaxing 314399P.R.China.

Background:There is a lack of data for the standardized ileal digestibility(SID) of fat and fatty acids in national feed *** addition,it is important to specify the procedures used for fat ***,an experiment was conducted to 1) determine the apparent ileal digestibility(AID) and SID of fat and fatty acids in ten different oil sources for growing pigs and to develop prediction equations for SID of fat based on fatty acid composition;and 2) compare the effect of the fat extraction methods on the calculated values for endogenous loss and digestibility of ***:Twenty-two barrows(initial body weight:32.1 ± 2.3 kg) were surgically fitted with a T-cannula in the distal ileum,and allotted to 1 of 11 experimental diets in a 4-period Youden Square design.A fat-free diet was formulated using cornstarch,soy protein isolate and *** oil-added diets were formulated by adding 6% of dietary oil sources to the fat-free diet at the expense of *** diets contained 26% sugar beet pulp and 0.40% chromic ***:The endogenous loss of ether extract(EE) was lower than that of acid-hydrolyzed fat(AEE;P < 0.01).There were significant differences in the AID and SID of fat and saturated fatty acids across the dietary oil sources(P < 0.05).The SID of AEE for palm oil was lower than that of sunflower oil,corn oil,canola oil,rice oil and flaxseed oil(P < 0.01).The AID and SID of fat ranged from 79.65% to 86.97% and from 91.14% to 99.18%.Although the AID of EE was greater than that of AEE(P < 0.01),there was no significant difference in SID of EE and AEE except for palm *** ratio of unsaturated to saturated fatty acids(U/S) had a positive correlation with SID of fat(P < 0.05),whereas C16:0 and long chain saturated fatty acids(LSFA) were significant negatively correlated with SID of fat(P < 0.01).The best-fit equation to predict SID of fat was SID AEE = 102.75-0.15 × LSFA-0.74 × C18:0-0.03 × C18:1(Adjusted coefficient of determination = 0.88

关键词： Fat extraction methods Fatty acids Growing pigs ileal digestibility Oil sources

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effects of corn gluten feed inclusion at graded levels in a corn-soybean diet on the ileal and fecal digestibility of growing pigs

引用

Journal of Animal Science and Biotechnology 2015年第1期6卷 63-68页

作者： Gerardo Mariscal Landin Tercia Cesaria Reis de Souza Ericka Ramirez Rodriguez Centro Nacional de Investigacion en Fisiologia Animal Instituto Nacional de Investigaciones Forestales Agricolas y PecuariasKm 1Carretera a ColonAjuchitlan ColonQueretaro 76280Mexico Facultad de Ciencias Naturales Universidad Autonoma de QueretaroSantiago de QueretaroAv.De las Ciencias s/n Juriquilla 76000QueretaroQueretaroMexico

Background： This study aimed to determine the effect of the inclusion of corn gluten feed （CGF） on the apparent and standardized ileal digestibility of protein and amino acids and the apparent ileal and total tract digestibility of energy in growing pigs. The study was performed using 16 barrows （weight, 45.3 ±4.5 kg） that were fitted with a T cannula at the terminal ileum. There were four treatments： a corn-soybean diet without CGF and three corn-soybean diets containing increasing levels of CGF （65, 130, and 195 g/kg）. Data were analyzed according to a randomized complete block design, four blocks with four pigs each （one pig per treatment）. The trend of the response （linear or quadratic） was determined using orthogonal contrasts, and when a linear effect was determined, a linear equation was obtained. Results： The results showed that the inclusion up to 195 g/kg of CGF in the corn-soybean diet did not diminish the ileal digestibility （apparent and standardized） of protein and amino acids （P 〉 0.05）, except that of phenylalanine, cystine, and proline. A linear decrease （P 〈 0.05） per gram of CGF added to the diet in the apparent and standardized ileal digestibility of phenylalanine （0.011 and 0.015 percentage units, respectively）, cystine （0.048 and 0.043 percentage units, respectively）, and proline （0.045 and 0.047 percentage units, respectively） was noted. Similarly, ileal digestibility of dry matter and energy were adversely affected （reduced by 0.028 and 0.025 percentage units, respectively, per gram of CGF increment in the diet）. A significant （P 〈 0.05） linear reduction in total tract digestibility with increase in CGF amount in the diet was observed for energy （0.027 percentage units）, dry matter （0.027 percentage units）, crude protein （0.020 percentage units）, and neutral detergent fiber （0.041 percentage units） per gram of CGF added to the diet. Conclusion： CGF did not affect the ileal digestibility of protein and most amino acids but reduced the ileal an

关键词： Amino acids Corn gluten feed Energy ileal digestibility Pigs Total tract digestibility

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Estimation of endogenous protein and amino acid ileal losses in weaned piglets by regression analysis using diets with graded levels of casein

引用

Journal of Animal Science and Biotechnology 2014年第1期5卷 74-79页

作者： Tércia Cesária Reis de Souza Araceli Aguilera Barreyro Gerardo Mariscal-Landín Facultad de Ciencias Naturales Universidad Autónoma de QuerétaroSantiago de Querétaro Av. De las Ciencias s/n Juriquilla 76000 QuerétaroQuerétaro México Centro Nacional de Investigación en Fisiología Animal Instituto Nacional de Investigaciones Forestales Agrícolas y Pecuarias Km 1Carretera a Colón Ajuchitlán Colón Querétaro 76280 México

Background： Many studies have investigated endogenous loss of proteins and amino acids （AAs） at the ileal level in growing pigs. However, only a few studies have researched this subject in piglets. Knowledge regarding AA ileal digestibility in piglets would be helpful during the formulation of diets for weaning piglets, rather than just using coefficients obtained in growing pigs. Therefore, in this study, we sought to estimate endogenous protein and AA ileal losses in piglets. Furthermore, apparent and true ileal digestibility （AID and TID） of protein and AAs from casein were measured. Results： The average flow of protein was 20.8 g/kg of dry matter intake （DMI）. Basal protein loss, as estimated by regression, was 16.9 g/kg DMI. Glutamic acid, arginine, and aspartic acid （2.2, 1.4, and 1.2 g/kg DMI, respectively） were the AAs for which greater losses were seen. The AID of protein and AAs increased as the protein level in the diet increased. A higher increment in AID was observed between diets with 80 and160 g CP/kg of feed; this finding was mainly attributable to increases in glycine and arginine （46.1% and 18%, respectively）. The TID of protein was 97.8, and the TID of AAs varied from 93.9 for histidine to 100.2 for phenylalanine. Conclusions： The basal endogenous protein loss in piglets was 16.9 g/kg DMI. Endogenous protein was rich in glutamic acid, aspartic acid, and arginine, which represented 32.7% of endogenous protein loss in weaning piglets. The TID of casein was high and varied from 93.0 for histidine to 100.2 for phenylalanine.

关键词： Amino acid loss ileal digestibility Protein loss Weaned piglets

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effects of dietary cellulose levels on the estimation of endogenous amino acid losses and amino acid digestibility for growing pigs

引用

Animal Nutrition 2016年第2期2卷 74-78页

作者： Zhengqun Liu Shuaibing Lv Shiyuan Zhang Jingbo Liu Hongfu Zhang Institute of Animal Sciences Chinese Academy of Agricultural Sciences State Key Laboratory of Animal Nutrition College of Animal Science and Technology Yangzhou University

Two experiments were conducted to investigate the effects of dietary cellulose levels on the determination of the ileal endogenous losses(IEL) of amino acids(AA), apparent ileal digestibility(AID) and standardized ileal digestibility(SID) of AA in corn-soybean meal diets for growing pigs. In the first experiment, 28 pigs(BW, 45.1 ± 2.0 kg) that were fitted with simple T-cannulas at the distal ileum were fed 4 nitrogen-free diets consisting of 4 dietary cellulose levels(0, 3%, 6% and 9%) in a randomized complete block design. In the second experiment, 28 pigs(BW, 45.6 ± 2.0 kg) fitted with simple Tcannulas at the distal ileum were fed 4 corn-soybean meal diets consisting of 4 dietary cellulose levels(0,3%, 6% and 9%) in a randomized complete block design. There were 7 replicates per diet with 1 pig as a replicate in each treatment. Both experiments consisted of a 7-d adjustment period and a 2-d ileal digesta collection period on d 8 and 9. Chromic oxide was used as an indigestible marker to calculate IEL and digestibility of AA. The results showed that the IEL of AA for growing pigs was not influenced by dietary cellulose supplementation(P > 0.05). The AID of Thr, Ser, Glu, Cys, Ile, Tyr, Phe, Lys and His decreased with increasing cellulose supplementation levels for pigs fed corn-soybean meal diets(P < 0.05). The SID of Thr, Ser, Cys, Val, Ile, Tyr, Phe, Lys and His decreased with increasing cellulose supplementation levels in corn-soybean meal diets(P < 0.05). In summary, dietary cellulose levels had no effect on the estimation of IEL of AA for growing pigs. The AID and SID of most AA in corn-soybean meal diets decreased with increasing levels of dietary cellulose supplementation.

关键词： Endogenous loss Cellulose Pig Amino acid ileal digestibility

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

THE LYSINE REQUIREMENT OF 3.8-8 KG EARLY-WEANED PIGLETS

THE LYSINE REQUIREMENT OF 3.8-8 KG EARLY-WEANED PIGLETS

引用

面向21世纪的动物科学与动物医学国际研讨会

作者： Lin Yingcai Jiang Zongyong Xiao Jingying ZHeng Li Yu Deqian Zhang Zhengbin Institute of Animal Science Guangdong Academy of Agricultural Science Guangzhou 510640

＜正＞Sixty three-way crossbred （Duroc×（Landrace×Yorkshire））, early-weaned piglets（initial BW=3.8kg;initial age=14d） were used to evaluate the effects of different dietary lysine levels （1.05, 1.15, 1.25, 1.35, 1.45 and 1.55％） on performance and serum urea nitrogen（SUN） concentration. The results showed that daily gain and feed intake increased significantly（P＜0.01 or 0.05）, feed to gain ratio trended to decrease（p＞0.05）, SUN concentration decreased significantly（P＜0.05） as dietary lysine level increased. But the performances between the

关键词： early-weaned piglets lysine requirement ileal digestibility

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Energy metabolism and protein balance in growing rats fed different levels of dietary fibre （soybean hulls） and protein

Energy metabolism and protein balance in growing rats fed di...

引用

作者： H.Jorgensen V.M.Gabert P.K.Theil Danish Institute of Agricultural Sciences. Department of Animal Nutrition and Physiology.Research Centre Foulum. P.O. Box 50. DK-8830 Tjele Denmark. Northwest Plateau Institute of Biology. The Chinese Academy of Sciences. Xining. 810001 P.R. China. Danish Institute of Agricultural Sciences. Department of Animal Nutrition and Physiology.Research Centre Foulum. P.O. Box 50. DK-8830 Tjele Denmark. Northwest Plateau Institute of Biology. The Chinese Academy of Sciences. Xining. 810001 P.R. China. Danish Institute of Agricultural Sciences. Department of Animal Nutrition and Physiology.Research Centre Foulum. P.O. Box 50. DK-8830 Tjele Denmark. Northwest Plateau Institute of Biology. The Chinese Academy of Sciences. Xining. 810001 P.R. China.

＜正＞SummaryA study was performed to investigate the effect of different levels of dietary fibre （DF） and dietary prolein on visceral organ size, digestibility, nitrogen balance and energy metabolism in rats. Thirty-six male Wistar rats, initial body weight about 76 g. were used in a factorial design consisting of three levels of dietary fibre （low, 81 g/kg DM;medium, 215 g/kg DM and high. 326 g/kg DM） and two levels of dietary prolein （low, 120 g/kg DM and high. 223 g/kg DM）. The added fibre source was soybean hulls. Danish fish meal was used as sole source of dietary protein. Measurements of gas-exchange were done on six rats （one group） and urine and faeces were collected individually. The weight of the digestive tract was larger （P＜0/05） in rats fed the high fibre diet than in those fed the low fibre diet. As the level of soybean fibre increased, the digestibility of nutrients and energy linearly decreased. The apparent biological value decreased with increasing DF when rats were fed the high protein diet whereas no significant difference was found with increasing DF in rats fed the low protein diet. Heat production as a percentage of metabolisable energy was higher in rats fed the low protein diet than in rats fed the high protein diet, but no significant difference was found among DF levels. The low heat production in rals fed high fibre diet is probably due to an improved utilization of metabolisable energy for fat deposition compared to protein deposition.

关键词： heat production ileal digestibility energy utilization

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

STUDIES ON NUTRITIVE VALUE OF COTTONSEED MEALS, FISH MEAL AND SOYBEAN MEAL FOR THE GROWING BARROWS

STUDIES ON NUTRITIVE VALUE OF COTTONSEED MEALS, FISH MEAL AN...

引用

面向21世纪的动物科学与动物医学国际研讨会

作者： Xiao Chuanlu Wang Xingling Institute of Animal Husbandry and Veterinary Science Jinan 250100 P. R. China

＜正＞True digestibilites of amino acids, nitrogen （N） and energy and the true utilization of N （Nbalance trial） were evaluated for steam-processed cottonseed meal （CSM）, screw-pressed CSM, screw-solvent processed CSM, Peru fish meal, soybean meal and ground alfalfa. The trial was conducted with six Large White×Large White×Laiwu growing barrows fitted with simple Tcannulae approximately 5-10cm proximal to the ileocecal valve in a 6×6 Latin square design. The net protein true utilization was 27.3, 27.7, 29.2, 46.4, 40.2 and 20.6％;the ileal true digestibility of Lys was 75.4, 78.5, 82.1, 96.3, 91.7 and 62.7％;the ileal true digestibility of Met

关键词： growing barrows protein feedstuffs N-balance ileal digestibility

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

菜籽蛋白在人体内呈现的低消化性和高代谢利用率(英文)

菜籽蛋白在人体内呈现的低消化性和高代谢利用率(英文)

引用

第十二届国际油菜大会

作者： Cécile Bos Gheorghe Airinei Franois Mariotti Robert Benamouzig Serge Berot Jacques Evrard Evelyne Fenart Daniel Tome Claire Gaudichon Department of Nutrition Physiology and Ingestive Behavior Unité mixte de recherche 914 Institut National de la Recherche Agronomique/Institut National Agronomique Paris-GrignonParisFrance Department of Nutrition Physiology and Ingestive Behavior Unité mixte de recherche 914 Institut National de la Recherche Agronomique/Institut National Agronomique Paris-GrignonParisFrance Assistance Publique-Höpitaux de ParisClinical Investigation CentreCRNH Ile-de-France （Human Nutrition Research Centre） Avicenne HospitalBobignyFrance Department of Nutrition Physiology and Ingestive Behavior Unité mixte de recherche 914 Institut National de la Recherche Agronomique/Institut National Agronomique Paris-GrignonParisFrance Assistance Publique-Höpitaux de Paris Clinical Investigation CentreCRNH Ile-de-France （Human Nutrition Research Centre） Avicenne HospitalBobignyFrance INRA Unité de recherche BiopolymèresInteractions AssemblagesNantesFrance CETIOM rue MongeParc industriel 33600 Pessac France ONIDOL （National agency for oilseeds development） 12 avenue GeorgeV 75008 ParisFrance Department of Nutrition Physiology and Ingestive Behavior Unité mixte de recherche 914 Institut National de la Recherche Agronomique/Institut National Agronomique Paris-GrignonParisFrance Department of Nutrition Physiology and Ingestive Behavior Unité mixte de recherche 914 Institut National de la Recherche Agronomique/Institut National Agronomique Paris-GrignonParisFrance

目前菜籽蛋白（Brassica napus L.）只用于动物饲料,尽管它对于人类营养也有很大的潜力。我们试图通过测量15N-菜籽蛋白在人类肠内真实消化率和餐后蛋白纯利用率评估油菜籽蛋白营养品质。每位志愿者肠内配备一肠内管在空肠水平（n=5）... 详细信息

目前菜籽蛋白（Brassica napus L.）只用于动物饲料,尽管它对于人类营养也有很大的潜力。我们试图通过测量15N-菜籽蛋白在人类肠内真实消化率和餐后蛋白纯利用率评估油菜籽蛋白营养品质。每位志愿者肠内配备一肠内管在空肠水平（n=5）或回肠水平（n=7）时摄入含27.3g15N菜籽蛋白和2.93MJ的能量成分。由餐后定期采得的肠液、尿、血样来定量摄入的N水平。菜籽蛋白肠内真实消化率84.0±8.8%。摄入的N在n=5时多数是未消化蛋白形式。芥菜型油菜和甘蓝型油菜蛋白片断都对蛋白水解有抗性。肠内N损失为2.2g/d。通过饮食摄入的氨水平没有显著增加。餐后N的分配:尿中的尿素和氨为5.4±1.8%,汗液中的尿素为8.2±3.4%,血浆蛋白中为7.7±2.0%。菜籽餐后蛋白纯利用率（NPPU）为70.5±9.6%。postprandial biological value较高:83.8±4.6%。菜籽蛋白在人体肠内不仅比其它植物蛋白消化率低,而且去氨比率低。因此,从菜籽摄入的氮在人体内保持力高,与奶蛋白氮相同。得出结论:菜籽蛋白对人类营养有很大潜力。

关键词： protein quality rapeseed protein ileal digestibility biological value humans

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：