نوع مقاله : مقاله پژوهشی
نویسندگان
1 جهاد کشاورزی -خرم آباد - ایران
2 گروه علوم دامی، دانشکده کشاورزی، دانشگاه لرستان. خرم آباد. ایران
3 گروه علوم دامی دانشکده کشاورزی دانشگاه لرستان- استان لرستان -خرم آباد
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
L-carnitine has antioxidant properties and protect the sperm membrane from reactive oxygen substance (ROS). This component reduces the availability of lipids from oxidation. To evaluate the administration of L-carnitine on semen and blood parameters and testicular tissue in aged Ross strain roosters. Forty aged roosters with same weight and age were distributed in four treatments with 10 repetitions in standard cages. The roosters were divided into experimental treatments including control, 100, 250 and 500 mg of L-carnitine per kg of diet. The duration of the experiment was 10 weeks. The length. For habituation to sperm collection used back-abdominal rubbing method. Semen samples were transferred to the laboratory at temperature of 37°C and after initial evaluation, parameters of motility, viability, integrity of sperm plasma membrane and DNA health were evaluated. The serum samples were collected to determine parameters and testicular tissue for histological studies. The rate of motility, viability, membrane integrity and DNA integrity increased in treatments fed with L-carnitine. The maximum integrity was observed in the treatment of 500 mg/kg. The amount of cholesterol and HDL in treatment 4 (500mg) was minimum and maximum respectively, while liver enzyme alanine aminotransferase showed no significant difference in all treatments. The thickness of the germinal layer in seminiferous tubules increased significantly with the addition of 500 and 250 mg of L-carnitine. L-carnitine is able to reduce the effects of oxidative stress in aged roosters. This result can be suggested and used for important breeds that are kept for unusual period.
کلیدواژه‌ها [English]
)