Advances in Animal and Veterinary Sciences

Research Article
Adv. Anim. Vet. Sci. 9(11): 1908-1918
Http://dx.doi.org/10.17582/journal.aavs/2021/9.11.1908.1918
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Ahmed A. Ali1, Shady T. Hassan2, Essam S. Soliman3*

1Animal Behavior and Management Division, Department of Animal Hygiene, Zoonosis, and Animal Behavior, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt; 2Department of Theriogenology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt. 3Animal, Poultry, and Environmental Hygiene Division, Department of Animal Hygiene, Zoonosis, and Animal Behavior, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt.

Abstract | Rabbit breeders seek the optimum productive and reproductive performance and high seminal characteristics in rabbit bucks. The study investigates the prophylactic influences and modifications induced by nano-selenium (NS, 0.5 and 1 mL) and commercial inorganic selenium (Se, 1 mL) supplementations on sexual behavior, reproductive performance, semen characteristics, antioxidant activity, testosterone hormone, and cortisol hormone levels in rabbit bucks. Twenty-four adult New Zealand white rabbit bucks of 5-months and 2.960 kg were individually housed in flat-deck wire cages and assigned to four groups of six bucks. The 1st group was supplemented with one mL Se/L, the 2nd with 0.5 mL NS/L, the 3rd group with 1 mL NS/L, and the 4th was kept as control. A total of 384 samples were collected (120 sera, 120 plasma, and 144 semen samples), as well as bucks were evaluated for the reproductive performance, libido, semen characteristics, antioxidant activity, testosterone hormone, and cortisol hormone levels in rabbit bucks. Body weights, weight gains, feed conversion ratios, reproductive performance concerning kindling rate, and litter size and weights at birth revealed highly significant (P < 0.01) improvements in NS supplemented bucks. Testosterone levels, reaction time, sperm mass activity, sperm individual motility, sperm concentration, normal live sperm, and normal alive motile sperms per ejaculate showed highly significant (P < 0.01) enhancements in NS supplemented bucks. Nano-selenium supplemented bucks revealed highly significant improvement of antioxidant activity and the lowest levels of cortisol hormone. Nano-selenium (1.0 and 0.5 mL) water supplementation contributed to significant improvements of productive and reproductive performance, libido, and semen characteristics, as well as prophylactic alleviations of oxidative stresses in rabbit bucks.

Keywords | Nano-Selenium, Prophylactics, Rabbit bucks, Semen quality, Sexual behavior