Changes in oxidative profile, activity of some gastrointestinal enzymes and performance of growing rabbits during hot season due to neonatal heat exposure
Abstract: The aim of this study was to examine the effect of neonatal heat exposure treatment on oxidative stress profile, some gastrointestinal enzymatic activities and performance of growing rabbits during hut (summer) season. Fifty New Zealand White (NZW) kits were divided into two groups (25 kits/group). In the control group (C), kits were kept under normal ambient temperature (21±2°C). In the neonatal heat exposure group (H), kits were exposed to high ambient temperature (34±2° for 6 hours) at day 5 post-partum. All kits were weaned at 30 days of age. The total antioxidant capacity in plasma of neonatal heat exposure group was significantly (P<0.05) higher than that of control group under hot condition. Nitric oxide (NO) significantly decreased in neonatal heat exposure group. Specitic activities of amylase, protease and lipase in the small intestine of H kits were higher compared with those of C group. Neonatal heat exposure improved daily feed intake and feed conversion compared with control group. There was no difference in weight of kits at weaning between groups. The body weights of young H rabbits at post-weaning and at 10 weeks of age were higher than those of C group. In conclusion, neonatal heat exposure improved weight of young rabbits when reared under hot condition. This may be due to increasing total antioxidant capacity with decreasing the nitric oxide at cellular level. Moreover, neonatal heat exposure may improve the efficiency of enzymes activity in the gastrointestinal tract of rabbit.
Key words: Neonatal heat exposure, Oxidative stress profile, Gastrointestinal enzymes.
Publication year 2008
Pages 513-518
Availability location معهد بحوث الانتاج الحيوانى- شارع نادى الصيد- الدقى- الجيزة
Availability number
Organization Name
City فيرونا
serial title 9th Wrsa. World Rabbit Congress (Italy)
Author(s) from ARC
Agris Categories Animal physiology - Nutrition
AGROVOC
TERMS		 Growth. Performance testing. Rabbits. Warm season.
Proposed Agrovoc Gastrointestinal enzymes;Oxidative stress profile;Neonatal heat exposure;
Publication Type Conference/Workshop
↑