动物营养学报2017，Vol.29Issue(6)：2010-2017,8.DOI:10.3969/j.issn.1006-267x.2017.06.022
肉桂醛对奶牛尿中嘌呤衍生物排出量、产奶性能和氮排泄的影响
Effects of Cinnamic Aldehyde on Purine Derivatives Excretion, Milk Performance and Nitrogen Excretion of Dairy Cows
摘要
Abstract
This experiment was conducted to determine the effects of cinnamic aldehyde (CA) on purine derivatives excretion, milk performance and nitrogen excretion of dairy cows.Forty Holstein cows with similar age, body weight, parity, milk yield, milk composition and lactation stage were divided into 4 groups with 10 cows per group.The supplement levels of CA in control group and test groups 1, 2 and 3 were 0, 12, 18 and 24 g/(d·head), respectively.The pretest lasted for 15 days, and the test lasted for 60 days.The results showed as follows: 1) the urinary purine derivatives excretions in test groups were significantly higher than those in control group (P<0.01), which in test groups 1, 2 and 3 were increased by 14.22%, 17.62% and 10.49% compared with the control group, respectively.2) The milk yields in test groups were significantly higher than those in control group (P<0.05 or P<0.01), which in test groups 1, 2 and 3 were increased by 10.80%, 12.15% and 6.48% compared with the control group, respectively.The milk fat percentages in test groups 1 and 2 were significantly higher than those in control group (P<0.01), the milk protein percentages in test groups were significantly higher than those in control group (P<0.01), the milk somatic cell count in test groups were significantly lower than those in control group (P<0.01).3) Compared with control group, the nitrogen total excretions in test groups were significantly reduced (P<0.01), which were reduced by 9.76%, 14.13% and 7.39% in test groups 1, 2 and 3, respectively.Base on the data of purine derivatives excretion, milk yield, milk composition content and nitrogen total excretion indices, it can be concluded that the suitable supplement level of CA is 18 g/(d·head) in the diet of dairy cows under the condition in the present study.关键词
肉桂醛/嘌呤衍生物/产奶性能/氮排泄Key words
cinnamic aldehyde/purine derivatives/milk performance/nitrogen excretion分类
农业科技引用本文复制引用
张成喜,刘开东,孙国强..肉桂醛对奶牛尿中嘌呤衍生物排出量、产奶性能和氮排泄的影响[J].动物营养学报,2017,29(6):2010-2017,8.基金项目
山东省现代农业产业技术体系牛产业创新团队(SDAIT-09-08) （SDAIT-09-08）
