CAJ | 학술논문

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。
본시험지재연구불동수평단안산서대대항육충계번식성능적영향。장500지32주령대항육충계수궤분성5조（매조5개중복，매개중복20지）。대조조사량위기출사량，시험조사량위재기출사량중분별첨가0．10、0．25、0．40화0．55 mg/kg서（단안산서）적시험사량，시험기6주。결과표명：1）대조조입부단수정솔현저저우0．40 mg/kg서조（P＜0．05），겁현저저우0．10화0．25 mg/kg서조（P＜0．01）；대조조입부단부화솔겁현저저우각가서조（P＜0．01）；대조조화0．40 mg/kg서조수정단부화솔현저저우0．10 mg/kg서조（P＜0．05）。2）0．10 mg/kg서조혈장잉동수평현저고우대조조화0．40 mg/kg서조（ P＜0．05）；0．10 mg/kg서조충단합씨단위현저고우0．55 mg/kg서조（ P＜0．05）。3）각조산단성능，혈장자이순수평，충단단형지수、단각후도화단각강도차이균불현저（P＞0．05）。유차가견，재서수평위0．12 mg/kg 적기출사량중，첨가0．10～0．55 mg/kg 단안산서래원적서대대항육충계산단성능몰유현저영향，첨가0．10～0．25 mg/kg단안산서래원적서가현저개선대항육충계충단부화성능。
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 supplemented with 0.10,0.25,0.40 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.