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Influence of birth order, birth weight, colostrum and serum immunoglobulin G on neonatal piglet survival

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journal of Animal Science and Biotechnology 2013年第2期4卷 128-136页

作者： Rafael A Cabrera Xi Lin joy M Campbell Adam j Moeser jack odle Laboratory of Developmental Nutrition Department of Animal Science North Carolina State University Huvepharma USA Inc. 525 West Park Drive Suite 230 Peachtree City American Protein Corporation Department of Population Health and Pathobiology College of Veterinary Medicine North Carolina State University 101 Polk Hall North Carolina State University

Background： Intake of colostrum after birth is essential to stimulate intestinal growth and function, and to provide systemic immunological protection via absorption of Immunoglobulin G （IgG）. The birth order and weight of 745 piglets （from 75 litters） were recorded during a one-week period of farrowing. Only pigs weighing greater than 0.68 kg birth weight were chosen for the trial. Sow colostrum was collected during parturition, and piglets were bled between 48 and 72 hours post-birth. Piglet serum IgG and colostral IgG concentrations were determined by radial immunodiffusion. Results： Sow parity had a significant （P 〈 0.001） effect on sow colostral IgG concentration, being 5% higher in multiparous females. Sow colostral IgG concentration explained 6% and piglet birth order accounted for another 4% of the variation observed in piglet serum IgG concentration （P 〈 0.05）; however, birth weight had no detectable effect. Piglet serum IgG concentration had both a linear （P 〈 0.05） and quadratic effect （P 〈 0.05） on % survival. Piglets with 1,000 mg/dl serum IgG or less （n=24） had a 67% survival; whereas, piglets with IgG concentrations between 2250 to 2500 mg/dl （n=247） had a 91% survival. Birth order had no detectable effect on survival, but birth weight had a positive linear effect （P 〈 0.05）. Piglets weighing 0.9 kg （n = 107） at birth had a 68% survival rate, and those weighing 1.6 kg （n = 158） had an 89% survival. Conclusion： We found that the combination of sow colostrum IgG concentration and birth order can account for 10% of the variation of piglet serum IgG concentration and that piglets with less than 1,000 mg/dl IgG serum concentration and weight of 0.9 kg at birth had low survival rate when compared to their larger siblings. The effective management of colostrum uptake in neonatal piglets in the first 24 hrs post-birth may potentially improve survival from birth to weaning.

关键词： Birth order Birth weight Immunoglobulin G Colostrum Survivability

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Effects of creep feeding and supplemental glutamine or glutamine plus glutamate (Aminogut) on pre- and post-weaning growth performance and intestinal health of piglets

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journal of Animal Science and Biotechnology 2013年第3期4卷 211-222页

作者： Rafael A Cabrera james L Usry Consuelo Arrellano Eduardo T Nogueira Marianne Kutschenko Adam j Moeser jack odle Laboratory of Developmental Nutrition Department of Animal ScienceNorth Carolina State University 101 Polk Hall North Carolina State UniversityRaleigh NC 27695 USA Huvepharma USA 525 West Park Drive Suite 230 Peachtree City GA 30269 USA Ajinomoto Heartland Lysine Department of Statistics North Carolina State UniversityRaleigh NC 27695-8203 USA Ajinomoto do Brasil. Ajinomoto Animal Nutrition Sāo Paulo SP 04015-001 Brazil Department of Population Health and Pathobiology College of Veterinary Medicine North Carolina State UniversityRaleigh NC 27695 USA Laboratory of Developmental Nutrition Department of Animal ScienceNorth Carolina State University 101 Polk Hall North Carolina State UniversityRaleigh NC 27695 USA

Background： Creep feeding is used to stimulate piglet post-weaning feed consumption.L-Glutamine（GLN） is an important source of fuel for intestinal epithelial *** objective of this study was to determine the impact of creep feeding and adding GLN or AminoGut（AG;containing glutamine ＋ glutamate） to pre-and post-weaning diets on pig performance and intestinal ***（N = 120） were allotted to four treatments during 14–21 d of lactation： 1） No creep feed（NC,n = 45）;2） creep fed control diet（CFCD,n = 45）;3） creep fed 1% GLN（CFGLN,n = 15）;4） creep fed.88% AG（CFAG,n = 15）.After weaning,the NC and CFCD groups were sub-divided into three groups（n = 15 each）,receiving either a control nursery diet（NC-CD,CFCD-CD） or a diet supplemented with either GLN（NC-GLN,CFCD-GLN） or with AG（NC-AG,CFCD-AG）.Litters that were creep fed with diets containing GLN or AG also were supplemented with those amino acids in the nursery diets（CFGLN-GLN,CFAG-AG）.Glutamine was added at 1% in all three post-weaning diet phases and AG was added at.88% in phase 1 and 2 and at.66% in phase ***： Feed conversion（feed/gain） showed means among treatment means close to significance（P = 0.056） and Tukey＇s test for pairwise mean comparisons showed that Pigs in the CFGLN-GLN group had the best feed conversion（feed/gain） in the first three-week period post-weaning,exceeding（P = 0.044） controls（CFCD-CD） by 34%.The NC-AG group had（P = 0.02） the greatest feed intake in the last three week of the study,exceeding controls（CFCD-CD） by 12%.CFGLN-GLN,CFCD-GLN and sow reared（SR） pigs had the greatest（P = 0.049） villi height exceeding the CFCD-AG group by 18%,20% and 19% *** CFAG-AG group had the deepest（P = 0.001） crypts among all ***-GLN,CFCD-GLN and SR groups had the greatest（P = 0.001） number of cells proliferating（PCNA） exceeding those in the NC-CD group by 43%,54% and 63% *** reared pigs showed the greatest（P = 0.001） intestinal absorption capacity for xylose and

关键词： Creep feeding Glutamine Growth performance Intestinal health SEM Villi

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环境温度和日粮锰对肉种鸡产蛋性能、蛋品质和血浆生化指标的影响

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广东饲料 2015年第8期24卷 47-47页

作者：樊倩 Y.W.Zhu j.j.Xie W.X.Li L.Lu L.Y.Zhang C.ji X.Lin H.C.Liu j.odle X.G.Luo 福建农林大学动物科学学院福建福州350002

本试验旨在研究环境温度和日粮锰对肉种鸡产蛋性能、蛋品质和血浆生化指标的影响。试验采用双因素完全随机设计,包括2个环境温度(一个正常温度,21±1°C;一个高温,32±1°C)和3个不同的饲粮锰处理(在玉米-豆粕型基础日粮中添加0 mg/kg... 详细信息

本试验旨在研究环境温度和日粮锰对肉种鸡产蛋性能、蛋品质和血浆生化指标的影响。试验采用双因素完全随机设计,包括2个环境温度(一个正常温度,21±1°C;一个高温,32±1°C)和3个不同的饲粮锰处理(在玉米-豆粕型基础日粮中添加0 mg/kg的锰、120 mg/kg的锰(来源分别为Mn SO4·H2O和蛋白锰)。因此,试验共6个处理组,每个组6个重复,每个重复4只鸡。结果表明高温降低了蛋重(P<0.0001)、产蛋率(P<0.0001)、产蛋量(P<0.0001)、采食量(P<0.0001)、饲料转化率(P<0.0001)、蛋壳强度(P<0.05)和蛋壳厚度(P<0.0001)、血浆三碘甲状腺氨酸水平(P<0.05)、碱性磷酸酶活性(P<0.04);提高了直肠温度(P<0.0001)、血浆丙二醛水平(P<0.02)、乳酸脱氢酶(P<0.002)、天冬氨酸转氨酶和肌酸激酶的活性。与不添加锰的饲粮相比,无论添加有机锰还是无机锰都增强了肉种鸡的蛋壳强度(P<0.05),降低了血浆三碘甲状腺氨酸和蛋白质羰基含量(P≤0.05)。与不添加锰的饲粮相比,饲喂添加有机锰日粮的肉种鸡的蛋壳厚度增加(P<0.01)。环境温度和饲粮锰在产蛋率、产蛋量、采食量和饲料转化率有相互作用(P<0.05)。在正常温度下,日粮无机锰或有机锰对产蛋率、产蛋量、采食量和饲料转化率不产生影响。然而,在高温情况下,饲喂有机锰日粮提高了肉种鸡产蛋率、产蛋量、采食量和饲料转化率(P<0.03)。本试验的结果表明:在32-45周龄,高温显著降低了产蛋性能、蛋壳质量,并诱导脂质过氧化反应和组织损伤。而日粮中添加有机锰或无机锰可以增加蛋壳强度和肉种鸡耐热性,并减少了蛋白质的氧化。综上,有机锰可以减轻高温对肉种鸡产蛋性能的负面影响。

关键词：血浆生化指标环境温度基础日粮产蛋性能肉种鸡蛋品质锰玉米-豆粕型

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Acute effects of rotavirus and malnutrition on intestinal barrier function in neonatal piglets

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World journal of Gastroenterology 2013年第31期19卷 5094-5102页

作者： Sheila K jacobi Adam j Moeser Anthony T Blikslager j Marc Rhoads Benjamin A Corl Robert j Harrell jack odle Laboratory of Developmental Nutrition College of Agriculture and Life Sciences North Carolina State University Raleigh NC 27695United States College of Veterinary Medicine North Carolina State University Raleigh NC 27695United States Department of Pediatrics University of Texas Health Science Center at Houston Medical School Houston TX 77030 United States Department of Dairy Science Virginia Poly-technic Institute and State University Blacksburg VA 24061United States

AIM: To investigate the effect of protein-energy malnutrition on intestinal barrier function during rotavirus enteritis in a piglet ***: Newborn piglets were allotted at day 4 of age to the following treatments:(1) full-strength formula(FSF)/noninfected;(2) FSF/rotavirus infected;(3) half-strength formula(HSF)/noninfected;or(4) HSF/rotavirus *** one day of adjustment to the feeding rates,pigs were infected with rotavirus and acute effects on growth and diarrhea were monitored for 3 d and jejunal samples were collected for Ussingchamber ***: Piglets that were malnourished or infected had lower body weights on days 2 and 3 post-infection(P junction protein,occludin,in the cell membrane and increased localization in the ***: Overall,malnutrition had no additive effects to rotavirus infection on intestinal barrier function at day 3 post-infection in a neonatal piglet model.

关键词： Rotavirus gastroenteritis Kwashiorkor Occludin Ussing chamber Villus