全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

饲粮过瘤胃胆碱添加量对泌乳早期奶牛生产性能及血液指标的影响

DOI: 10.3969/j.issn.1006-267x.2011.11.027

Keywords: 奶牛,胆碱,添加量,乳脂,血浆非酯化脂肪酸

Full-Text   Cite this paper   Add to My Lib

Abstract:

本试验旨在研究饲粮过瘤胃胆碱添加量对泌乳早期奶牛生产性能及血液指标的影响。试验选用4头胎次、预产期、体重、产奶量相近的健康荷斯坦牛,采用4×4拉丁方试验设计,试验处理为每头牛的饲粮中每天添加0、30、60或90g过瘤胃胆碱(氯化胆碱含量分别为0、7.5、15.0、22.5g)。试验共分为4期,每期15d。试验结果表明,补饲过瘤胃胆碱对奶牛的产奶量、乳糖和乳真蛋白质含量及其产量无显著影响(P>0.05);乳脂率随着过瘤胃胆碱添加量的增加显著升高(P<0.05),在添加量为30和60g/d时达到较高水平,2组间差异不显著(P>0.05)。添加过瘤胃胆碱对血浆中葡萄糖、高密度脂蛋白、β-羟丁酸、甘油三酯和胆固醇的含量没有显著影响(P>0.05),有提高血浆低密度脂蛋白含量的趋势(P>0.05)。添加过瘤胃胆碱降低了血浆非酯化脂肪酸含量(P=0.05),以添加量为60g/d时非酯化脂肪酸含量最低且显著低于对照(P<0.05)。本试验结果显示,泌乳早期奶牛饲粮中添加过瘤胃胆碱有提高肝脏脂肪输出能力的作用,可将更多的脂肪酸分配到外周体组织代谢,进而促进乳脂合成和降低脂肪在肝脏沉积的风险。

References

[1]  BONOMI A, QUARANTELLI A, BONOMI B M, et al. Inclusion of rumen-protected choline in diets for dairy cattle. Effect on productive and reproductive efficiency[J]. Nutrition Research Reviews, 1996, 25:413-434.
[2]  徐国忠,叶均安,陈伟健,等.保护氯化胆碱对奶牛泌乳初期生产性能和血浆生化指标的影响初探[J].中国畜牧杂志,2005,41(6):23-25.
[3]  GURETZKY N A J, CARLSON D B, GARRETT J E, et al. Lipid metabolite profiles and milk production for Holstein and Jersey cows fed rumen-protected choline during the periparturient period[J]. Journal of Dairy Science, 2006, 89(1):188-200.
[4]  MOLITORIS B A, BAKER D H. The choline requirement of broiler chicks during the seventh week of life[J]. Poultry Science, 1976, 55(1):220-224.
[5]  STOCKLAND W L, BLAYLOCK L G. Choline requirement of pregnant sows and gilts under restricted feeding conditions[J]. Journal of Animal Science, 1974, 39(6):1113-1116.
[6]  TSIAGBE V K, KANG C W, SUNDE M L. The effect of choline supplementation in growing pullet and laying hen diets[J]. Poultry Science, 1982, 61(10):2060-2064.
[7]  JOHNSON B C, MITCHELL H H, PINKOS J A, et al. Choline deficiency in the calf[J]. The Journal of Nutrition, 1951, 43(1):37-48.
[8]  ATKINS K B, ERDMAN R A, VANDERSALL J H. Dietary choline effects on milk yield and duodenal choline flow in dairy cattle[J]. Journal of Dairy Science, 1988, 71(1):109-116.
[9]  SHARMA B K, ERDMAN R A. Effect of high amounts of dietary choline supplementation on duodenal choline flow and production responses of dairy cows[J]. Journal of Dairy Science, 1988, 71(10):2670-2676.
[10]  SHARMA B K, ERDMAN R A. Effect of dietary and abomasally infused choline on milk production responses of lactating dairy cows[J]. The Journal of Nutrition, 1989, 119(2):248-254.
[11]  ERDMAN R A, SHARMA B K. Effect of dietary rumen-protected choline in lactating dairy cows[J]. Journal of Dairy Science, 1991, 74(5):1641-1647.
[12]  DICOSTANZO A, SPAIN J N. Effect of rumen protected choline or methionine on lactational performance and blood metabolities of periparturient Holsteins[J]. Journal of Dairy Science, 1995, 78(Suppl. l):188.(Abstr.)
[13]  HARTWELL J R, CECAVA M J, DONKIN S S. Impact of dietary rumen undegradable protein and rumen-protected choline on intake, peripartum liver triacylglyceride, plasma metabolites and milk production in transition dairy cows[J]. Journal of Dairy Science, 2000, 83(12):2907-2917.
[14]  PINOTTI L, CAMPAGNOLI A, SANGALLI L, et al. Metabolism in periparturient dairy cows fed rumen-protected choline[J]. Animal Feed Science, 2004, 13(Suppl. 1):551-554.
[15]  伍红.两种测定牛奶中乳糖含量方法的比较[J].西南民族学院学报:自然科学版,1999,15(3):288-291.
[16]  PIEPENBRINK M S, OVERTON T R. Liver metabolism and production of cows fed increasing amounts of rumen-protected choline during the periparturient period[J]. Journal of Dairy Science, 2003, 86(5):1722-1733.
[17]  ERDMAN R A, SHAVER R D, VANDERSALL J H. Dietary choline for the lactating cow: possible effects on milk synthesis[J]. Journal of Dairy Science, 1984, 67(2):410-415.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133