Department of Animal Science, Shabestar Branch, Islamic Azad University, Shabestar, Iran.
Vet Med Sci. 2024 Jul;10(4):e1538. doi: 10.1002/vms3.1538.
Selenium (Se) is a rare essential element that plays a vital role in the health and performance of animals. By interfering in the production of antioxidant enzymes such as glutathione peroxidase, thioredoxin reductase and methionine sulfoxide, Se plays a role in reducing the effects of oxidative stress and animal performance.
This study aimed to investigate the effect of hydroxy-selenomethionine (OH-SeMet) in the diet of broiler breeder and old broiler breeder roosters on productive performance, reproduction and sperm quality parameters.
For this purpose, 260 broiler breeders of the Ross 308 strain were used in a completely randomized design with four treatments and five replications (13 hens and one rooster in each replication). Experimental treatments included: (1) a basal diet without OH-SeMet (T1:control), (2) a broiler breeder diet without OH-SeMet and a rooster diet containing 0.1 mg/kg OH-SeMet (T2), (3) broiler breeder diet containing 0.1 mg/kg OH-SeMet and rooster diet without OH-SeMet (T3) and (4) broiler breeder and rooster diet contained 0.1 mg/kg OH-SeMet (T4).
The results showed that T3 and T4 treatments improved egg production, egg weight, egg mass and feed conversion ratio (FCR) compared to the control treatment (p < 0.05). The fertility and hatchability percentages of T4 and T2 treatments increased compared to T1 and T3 treatments (p < 0.05). The rate of embryonic losses in T1 was higher than in other treatments. However, grade one chickens were higher in T4 than in other treatments (p < 0.05). Total motility and viability of sperms were significantly higher in T2 and T4 treatments than in T1 and T3 treatments. The sperm abnormality percentage and sperm MDA concentration decreased in T2 and T4 treatments.
Therefore, using OH-SeMet may be a practical approach to help old broiler breeders' production and reproduction performance.
硒(Se)是一种稀有必需元素,对动物的健康和性能起着至关重要的作用。通过干扰谷胱甘肽过氧化物酶、硫氧还蛋白还原酶和蛋氨酸亚砜等抗氧化酶的产生,硒在减轻氧化应激和动物性能方面发挥作用。
本研究旨在探讨饲粮中添加羟基蛋氨酸硒(OH-SeMet)对肉种鸡和老龄肉种鸡公鸡生产性能、繁殖性能和精子质量参数的影响。
为此,使用罗斯 308 品系的 260 只肉种鸡进行完全随机设计,设 4 个处理,每个处理 5 个重复(每个重复 13 只母鸡和 1 只公鸡)。试验处理包括:(1)不含 OH-SeMet 的基础日粮(T1:对照组);(2)不含 OH-SeMet 的肉种鸡日粮和含 0.1mg/kg OH-SeMet 的公鸡日粮(T2);(3)含 0.1mg/kg OH-SeMet 的肉种鸡日粮和不含 OH-SeMet 的公鸡日粮(T3);(4)肉种鸡和公鸡日粮均含 0.1mg/kg OH-SeMet(T4)。
结果表明,与对照组相比,T3 和 T4 处理提高了产蛋率、蛋重、蛋重和饲料转化率(FCR)(p<0.05)。T4 和 T2 处理的受精率和孵化率均高于 T1 和 T3 处理(p<0.05)。T1 的胚胎死亡率高于其他处理。然而,T4 的一级鸡数量高于其他处理(p<0.05)。T2 和 T4 处理的精子总活力和活力显著高于 T1 和 T3 处理。T2 和 T4 处理的精子畸形率和 MDA 浓度降低。
因此,使用 OH-SeMet 可能是一种提高老龄肉种鸡生产和繁殖性能的实用方法。