动物营养学报 >

2014 , Vol. 26 >Issue 3: 718 - 724

DOI: https://doi.org/10.3969/j.issn.1006-267x.2014.03.022

饲料营养 Feed Science and Technology

一种新型缓释非蛋白氮添加水平对奶山羊泌乳性能及血液生化指标的影响

  • 王会 ,
  • 罗军 ,
  • 张伟 ,
  • 张天颖 ,
  • 杨地坤
展开
  • 西北农林科技大学动物科技学院, 杨凌 712100

收稿日期: 2013-09-01

  网络出版日期: 2014-03-04

基金资助

公益性行业（农业）科研专项（201103038）；陕西省重大科技创新项目（2009ZKC07-01-1）

收起

A New Slow-Release Non-Protein Nitrogen：Effects of Supplemental Level on Lactation Performance and Blood Biochemical Indices of Lactating Goats

  • WANG Hui ,
  • LUO Jun ,
  • ZHANG Wei ,
  • ZHANG Tianying ,
  • YANG Dikun
Expand
  • College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China

Received date: 2013-09-01

  Online published: 2014-03-04

Fold

摘要

本试验旨在探讨饲粮中添加不同水平的一种新型缓释非蛋白氮（srNPN）对奶山羊泌乳性能及血液生化指标的影响。选择2~3胎平均体重约为60 kg的健康西农萨能奶山羊泌乳羊48只，随机分为4组，每组12只。各组饲粮srNPN添加水平分别为0（对照组）、0.25%、0.50%、0.75%。预试期1周，正试期16周。结果表明：1）饲粮中添加不同水平的srNPN对奶山羊日均采食量无显著影响（P>0.05）。2）饲粮中添加srNPN可显著提高奶山羊日均产奶量（P<0.05），且0.50%组日均产奶量显著高于其他各组（P<0.05）。3）与对照组相比，srNPN显著提高了乳中乳脂含量（P<0.05），但试验组间无显著差异（P>0.05）；各组乳中乳蛋白、乳糖及乳非脂固形物含量差异不显著（P>0.05）。4）饲粮中添加srNPN可显著降低血液尿素氮含量（P<0.05），其中0.50%组羊血液尿素氮含量最低；各组奶山羊血液甘油三酯、总胆固醇及总蛋白含量差异不显著（P>0.05）。由此得出，饲粮中添加srNPN能够提高奶山羊乳中乳脂含量，降低血液尿素氮含量，添加水平为0.50%时奶山羊日均产奶量最高。

关键词： 缓释非蛋白氮; 泌乳性能; 血液生化指标; 奶山羊

本文引用格式

王会 , 罗军 , 张伟 , 张天颖 , 杨地坤 . 一种新型缓释非蛋白氮添加水平对奶山羊泌乳性能及血液生化指标的影响[J]. 动物营养学报, 2014 , 26(3) : 718 -724 . DOI: 10.3969/j.issn.1006-267x.2014.03.022

Abstract

This experiment was conducted to investigate the effects of different supplemental level of a new slow-release non-protein nitrogen (srNPN) on lactation performance and blood biochemical indices of dairy goats. Forty-eight healthy lactating Xinong Saanen dairy goats with 2 to 3 parities and about 60 kg of average body weight were randomly assigned to 4 groups with 12 goats in each group. Goats in the 4 groups were fed diets supplemented with srNPN at 0, 0.25%, 0.50% and 0.75%, respectively. There was a pretrial period of 1 week followed by an experimental period of 16 weeks. The results showed as follows: 1) dietary supplementation of srNPN at different levels did not affect average daily feed intake of lactating goats (P>0.05). 2) The supplementation of srNPN significantly increased average daily milk yield (P<0.05), which in 0.50% group was significantly higher than that in the other groups (P<0.05). 3) Compared with that in control group, milk fat content in experimental groups was significantly increased (P<0.05), but there was no significant difference among experimental groups (P>0.05); besides, the contents of milk protein, lactose and milk solids-non-fat were not significantly affected by the supplementation of srNPN (P>0.05). 4) The supplementation of srNPN could significantly decrease blood urea nitrogen content (P<0.05), and that in 0.50% group was the lowest; the contents of triglyceride, total cholesterol and total protein in blood were not significantly affected by the supplementation of srNPN (P>0.05). In conclusion, dietary supplementation of srNPN can increase milk fat content and reduce blood urea nitrogen content. The average daily milk yield of lactating goats is the highest when srNPN supplemental level is 0.50%.

Key words： srNPN; lactation performance; blood biochemical indices; lactating goats

参考文献

[1] NOCEK J E, RUSSELL J B.Protein and energy as an integrated system.Relationship of ruminal protein and carbohydrate availability to microbial synthesis and milk production[J].Journal of Dairy Science, 1988, 71(8):2070-2107.  

[2] 万伶俐, 王晓阳, 魏炳栋.尿素缓释技术在反刍动物饲料中应用研究进展[J].农业与技术, 2007, 27(2):71-73.

[3] PINOS-RODRIGUEZ J M, PENA L Y, GONZALEZ-MUNOZ S S, et al.Effects of a slow-release coated urea product on growth performance and ruminal fermentation in beef steers[J].Italian Journal of Animal Science, 2010, 9(1):16-19.

[4] CHERDTHONG A, WANAPAT M, WACHIRAPAKORN C.Influence of urea-calcium mixtures as rumen slow-release feed on in vitro fermentation using a gas production technique[J].Archives of Animal Nutrition, 2011, 65(3):242-254.  

[5] HUNTINGTON G B, HARMON D L, KRISTENSEN N B, et al.Effects of a slow-release urea source on absorption of ammonia and endogenous production of urea by cattle[J].Animal Feed Science and Technology, 2006, 130(3/4):225-241.

[6] HIGHSTREET A, ROBINSON P H, ROBISON J, et al.Response of Holstein cows to replacing urea with a slowly rumen released urea in a diet high in soluble crude protein[J].Livestock Science, 2010, 129(1/2/3):179-185.

[7] GOLOMBESKI G L, KALSCHEUR K F, HIPPEN A R, et al.Slow-release urea and highly fermentable sugars in diets fed to lactating dairy cows[J].Journal of Dairy Science, 2006, 89(11):4395-4403.  

[8] BRODERICK G A, STEVENSON M J, PATTON R A.Effect of dietary protein concentration and degradability on response to rumen-protected methionine in lactating dairy cows[J].Journal of Dairy Science, 2009, 92(6):2719-2728.  

[9] INOSTROZA J F, SHAVER R D, CABRERA V E, et al.Effect of diets containing a controlled-release urea product on milk yield, milk composition, and milk component yields in commercial Wisconsin dairy herds and economic implications[J].The Professional Animal Scientist, 2010, 26(2):175-180.

[10] GARCIA-GONZALEZ R, TRICARICO J M, HARRISON G A, et al.Optigen (R) is a sustained release source of non-protein nitrogen in the rumen[J]Journal of Dairy Science, 2007, 90:98-98.

[11] HOLDER V B, EL-KADI S W, TRICARICO J M, et al.The effects of crude protein concentration and slow release urea on nitrogen metabolism in Holstein steers[J].Archives of Animal Nutrition, 2013, 67(2):93-103.  

[12] ALVAREZ A E, HUNTINGTON G B, BURNS J C.Effects of supplemental urea sources and feeding frequency on ruminal fermentation, fiber digestion, and nitrogen balance in beef steers[J].Animal Feed Science and Technology, 2012, 171(2):136-145.

[13] STEWART JR R, TRICARICO J, HARMON D, et al.Influence of Optigen® on nitrogen behavior in lactating dairy cows[J].Journal of Dairy Science, 2008, 86(Suppl.2):491.

[14] TIKOFSKY J, HARRISON G A, LYONS T P, et al.Optigen® Ⅱ:improving the efficiency of nitrogen utilization in the dairy cow[C]//Nutritional biotechnology in the feed and food industries:proceedings of Alltech's 22nd annual symposium, Lexington:Alltech UK, 2006:373-380.

[15] BOURG B M, TEDESCHI L O, WICKERSHAM T A, et al.Effects of a slow-release urea product on performance, carcass characteristics, and nitrogen balance of steers fed steam-flaked corn[J].Journal of Animal Science, 2012, 90(11):3914-3923.  

[16] 徐俊, 侯玉洁, 赵国琦, 等.不同蛋白和中性洗涤纤维水平对瘤胃发酵、消化和微生物蛋白合成的影响[J].中国畜牧杂志, 2013, 49(7):43-48.

[17] CHALUPA W.Precision feeding of nitrogen to lactating dairy cows a role for Optigen® Ⅱ[J/OL].Disponible en.[2007-06-26].http://www.engormix.com/rate_list.asp.

[18] HARRISON G A, MEYER M D, DAWSON K A.Effect of Optigen and dietary neutral detergent fiber level on fermentation, digestion, and N flow in rumen-simulating fermenters[J].Journal of Dairy Science, 2008, 91(Suppl.1):489.

[19] RUSSELL J B, MUCK R E, WEIMER P J.Quantitative analysis of cellulose degradation and growth of cellulolytic bacteria in the rumen[J].FEMS Microbiology Ecology, 2009, 67(2):183-197.  

[20] CHERDTHONG A, WANAPAT M.Development of urea products as rumen slow-release feed for ruminant production:a review[J].Australian Journal of Basic and Applied Sciences, 2010, 4:2232-2241.

[21] GRUMMER R R, CLARK J H, DAVIS C L, et al.Effect of ruminal ammonia-nitrogen concentration on protein degradation in situ[J].Journal of Dairy Science, 1984, 67(10):2294-2301.  

[22] SONG M K, KENNELLY J J.Effect of ammoniated barley silage on ruminal fermentation, nitrogen supply to the small intestine, ruminal and whole tract digestion, and milk production of Holstein cows[J].Journal of Dairy Science, 1989, 72(11):2981-2990.  

[23] 江兰, 孟庆翔, 任丽萍, 等.饲粮尿素添加水平对生长育肥牛生长性能和血液生化指标的影响[J].中国农业科学, 2012, 45(4):761-767.

[24] ARMENTANO L E, BERTICS S J, RIESTERER J.Lack of response to addition of degradable protein to a low protein diet fed to midlactation dairy cows[J].Journal of Dairy Science, 1993, 76(12):3755-3762.  

[25] CASTILLO A R, KEBREAB E, BEEVER D E, et al.The effect of protein supplementation on nitrogen utilization in lactating dairy cows fed grass silage diets[J].Journal of Animal Science, 2001, 79(1):247-253.
Options
文章导航

/

〈 〉

    联系我们

  • 地址：北京市海淀区圆明园西路2号
    　　　中国农业大学动科动医大楼153室
  • 邮编：100193
  • 电话：010－62817823
  • 网址：http://www.chinajan.com
  • E-mail：cjan@chinajan.com
京公网安备 11010802041926号    京ICP备17050989号-2