摘要
本试验旨在研究不同水平蛋氨酸硒对大恒肉种鸡繁殖性能的影响。将500只32周龄大恒肉种鸡随机分成5组（每组5个重复,每个重复20只）。对照组饲粮为基础饲粮,试验组饲粮为在基础饲粮中分别添加0.10、0.25、0.40和0.55 mg/kg硒（蛋氨酸硒）的试验饲粮,试验期6周。结果表明：1）对照组入孵蛋受精率显著低于0.40 mg/kg硒组（P〈0.05）,极显著低于0.10和0.25 mg/kg硒组（P〈0.01）;对照组入孵蛋孵化率极显著低于各加硒组（P〈0.01）;对照组和0.40 mg/kg硒组受精蛋孵化率显著低于0.10 mg/kg硒组（P〈0.05）。2）0.10 mg/kg硒组血浆孕酮水平显著高于对照组和0.40 mg/kg硒组（P〈0.05）;0.10 mg/kg硒组种蛋哈氏单位显著高于0.55 mg/kg硒组（P〈0.05）。3）各组产蛋性能,血浆雌二醇水平,种蛋蛋形指数、蛋壳厚度和蛋壳强度差异均不显著（P〉0.05）。由此可见,在硒水平为0.12 mg/kg的基础饲粮中,添加0.10-0.55 mg/kg蛋氨酸硒来源的硒对大恒肉种鸡产蛋性能没有显著影响,添加0.10-0.25 mg/kg蛋氨酸硒来源的硒可显著改善大恒肉种鸡种蛋孵化性能。
This experiment was conducted to investigate the effects of different levels of selenomethionine on reproductive performance in Daheng broiler breeders. A total of five hundred Daheng broiler breeders hens at age of 32 weeks were randomly allocated into 5 groups with 5 replicates per group and 20 hens per replicate. The control group was fed a basal diet, the experimental groups were fed the basal diet supple, mented with O. 10,0.25,0.40 and 0.55 mg/kg selenium coming from selenomethionine, respectively. The experiment lasted for 6 weeks. The results showed as follows ： 1 ） fertility of the incubated eggs in control group was significantly lower than that in 0.40 （P〈0.05）, 0.10 （ P〈0.01 ） and 0.25 mg/kg selenium groups （P〈0.01）. Hatchability of the incubated eggs in control group was significantly lower than that in all selenium groups （P〈0.01）. Hatchability of the fertilized eggs in control group and 0.40 mg/kg selenium group was significantly lower than that in 0.10 mg/kg selenium group （P〈0.05）. 2 ） Plasma progesterone level of the 0.10 mg/kg selenium group was significantly higher than that in the control group and 0.40 mg/kg selenium group （P〈0.05）. Egg Haugh unit in 0.10 mg/kg selenium group was significantly higher than that in 0.55 mg/kg selenium group （P〈0.05）. 3） There was no significant difference of the laying performance, level of plasma estradiol, egg shape index, eggshell thickness and strength of breeding eggs among all the groups （P〉0.05）. It is concluded that there is no significant influence on laying performance in Daheng broiler breeders when adding 0.10 to 0.55 mg/kg selenium coming from selenomethionine to the basal diet which contains 0.12 mg/kg selenium, and it can significantly improve the incubation performance of the breeding eggs in Daheng broiler breeders when adding 0.10 to 0.25 mg/kg selenium coming from selenomethionine.
出处
《动物营养学报》
CAS
CSCD
北大核心
2014年第11期3414-3419,共6页
CHINESE JOURNAL OF ANIMAL NUTRITION
基金
四川省畜禽良种繁育专项基金项目(SASA2009YZ002)
食品加工四川省高校重点实验室科研项目(14-S02)
关键词
蛋氨酸硒
肉种鸡
繁殖性能
selenomethionine
broiler breeders
reproductive performance
