饲粮不同能量水平对崂山奶山羊泌乳性能和血清生化指标的影响

宋晓雯; 王文丹; 程明; 戴正浩; 林英庭

doi:10.3969/j.issn.1006-267x.2015.08.014

动物营养学报 >

2015 , Vol. 27 >Issue 8: 2423 - 2430

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.08.014

反刍动物营养 Ruminant Nutrition

饲粮不同能量水平对崂山奶山羊泌乳性能和血清生化指标的影响

宋晓雯 ,
王文丹 ,
程明 ,
戴正浩 ,
林英庭

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1. 青岛农业大学动物科技学院, 青岛 266109;
2. 青岛市畜牧兽医研究所, 青岛 266109

收稿日期: 2015-02-06

网络出版日期: 2015-08-13

基金资助

山东省现代农业产业技术体系羊产业创新团队(SDAIT-09-011-04)

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Effects of Dietary Energy Level on Lactation Performance and Serum Biochemical Indices of Laoshan Dairy Goats

SONG Xiaowen ,
WANG Wendan ,
CHENG Ming ,
DAI Zhenghao ,
LIN Yingting

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1. College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China;
2. Institute of Husbandry and Veterinary, Qingdao 266109, China

Received date: 2015-02-06

Online published: 2015-08-13

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摘要

试验旨在研究饲粮不同能量水平对崂山奶山羊泌乳性能和血清生化指标的影响。选择体重(53.80±1.62) kg、产奶量(1.80±0.19) kg/d、体况相近并处于泌乳期2胎健康崂山奶山羊30只,采用单因素随机分组设计,随机分成3组,每组10只,每只羊为1个重复。分别饲喂钙、磷和蛋白质水平一致,消化能水平分别为9.7、10.8及11.6 MJ/kg的3种饲粮。正试期60 d。结果表明:1)9.7 MJ/kg组有最低的产奶量,且料奶比显著高于10.8 MJ/kg组、11.6 MJ/kg组(P<0.05),10.8 MJ/kg组、11.6 MJ/kg组之间差异不显著(P>0.05)。2)9.7 MJ/kg组乳中有最大的乳脂率,显著高于10.8 MJ/kg组、11.6 MJ/kg组(P<0.05),3组其他乳成分含量差异不显著(P>0.05)。3)10.80 MJ/kg组血清尿素氮含量显著高于9.7 MJ/kg组、11.6 MJ/kg组(P<0.05);11.6 MJ/kg组谷草转氨酶活性和白蛋白、甘油三酯及总胆固醇含量显著或极显著高于9.7 MJ/kg组(P<0.05或P<0.01),不同能量水平对血清总蛋白、球蛋白含量及谷丙转氨酶活性无显著影响(P>0.05)。由以上结果并考虑饲养成本得出,奶山羊获得最佳泌乳性能的饲粮消化能水平为10.8 MJ/kg。

关键词： 崂山奶山羊; 能量水平; 泌乳性能; 血清生化指标

本文引用格式

宋晓雯 , 王文丹 , 程明 , 戴正浩 , 林英庭 . 饲粮不同能量水平对崂山奶山羊泌乳性能和血清生化指标的影响[J]. 动物营养学报, 2015 , 27(8) : 2423 -2430 . DOI: 10.3969/j.issn.1006-267x.2015.08.014

Abstract

This experiment was conducted to investigate the effects of dietary energy level on lactation performance and serum biochemical indices of Laoshan dairy goats. Thirty Laoshan dairy goats in lactation with average weight of (53.80±1.62) kg, milk yield of (1.80±0.19) kg/d and parity of 2 were used by single-factor randomized design and equally divided into 3 groups with 10 goats per group (each goat was one replicate). Three groups were fed diets with consistent calcium, phosphorus, and protein levels, but different energy levels (9.7, 10.8 and 11.6 MJ/kg, respectively). The experiment lasted for 60 d. The results showed as follows: 1) milk yield in 9.7 MJ/kg group was significantly lower than that in 10.8 and 11.6 MJ/kg groups (P<0.05), but there was no significant difference between 10.8 and 11.6 MJ/kg groups (P>0.05). 2) Milk fat percentage in 9.7 MJ/kg group was significantly higher than that in 10.8 and 11.6 MJ/kg groups (P<0.05), there was no significant effect on the other milk compositions in three groups (P>0.05). 3) Serum urea nitrogen content in 10.80 MJ/kg group was significantly higher than that in 9.7 and 11.6 MJ/kg groups (P<0.05), and serum glutamic-oxalacetic transaminase activity and albumin, triglyceride and total cholesterol contents were significantly lower than those in 11.6 MJ/kg group (P<0.05 or P<0.01), however, all goats had similar contents of total protein and globulin and activity of glutamic-pyruvic transaminase in serum (P>0.05). Overall, considering the costing of the feeding and the above results, digestible energy level at 10.80 MJ/kg is the best for Laoshan dairy goats' lactation performance.

Key words： Laoshan dairy goat; energy level; lactation performance; serum biochemical indices

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