Effect of Wet Feeding on Feed Conversion Efficiency in Laying Hens during Summer Season
محورهای موضوعی : Camel
هـ. اشرف وایز
1
(Department of Animal Genetics and Breeding , College of Veterinary and Animal Science and Breeding, Rajasthan University of Veterinary and Animal Science, Udaipur, India)
ل. گاوتام
2
(Department of Animal Genetics and Breeding , College of Veterinary and Animal Science and Breeding, Rajasthan University of Veterinary and Animal Science, Udaipur, India)
ر.ک. نگدا
3
(Department of Animal Genetics and Breeding , College of Veterinary and Animal Science and Breeding, Rajasthan University of Veterinary and Animal Science, Udaipur, India)
جی. احمد بهات
4
(Department of Livestock Production Management, Faculty of Veterinary Science and Animal Husbandry, SKUAST‐K, Srinagar, Kashmir, India)
کلید واژه: heat stress, laying hens, feed, wet feeding, feed conversion efficiency,
چکیده مقاله :
The aim of this study was to investigate the effect of wet feeding on feed conversion efficiency in laying hens during summer season. The study was carried out on 192 pullets of eight weeks age (distributed to four groups). The feed offered to chicks consisted of starter diet up to 8 weeks of age and grower diet up to 20 weeks of age. From 20 weeks onwards, birds were provided with layer diet up to the end of the experiment. Birds of control group (T1) were offered dry feed. Water was mixed with feed in T2 (700 mL/kg), T3 (800 mL/kg) and T4(900 mL/kg) groups. The study lasted for 100 days. Results indicated that wet feeding improves feed utilization (FCR) in terms of kg of feed per dozen of eggs and kg of feed per kg egg mass as compared to control. Overall, the results indicate an improvement in feed conversion efficiency in all groups as compared to control but it was highly significant (P˂0.05) in T3 group in which water supplementation was made at a level of 800 mL/kg feed.
هدف از این مطالعه، بررسی اثر تغذیه مرطوب بر بازده تبدیل خوراک در مرغهای تخمگذار در فصل تابستان بود. این مطالعه روی 192 قطعه پولت با هشت هفته سن (توزیع شده در چهار گروه) انجام شد. خوراک ارائه شده به جوجه شامل جیره آغازین تا سن 8 هفتگی و جیره غذایی رشد تا سن 20 هفتگی بود. از هفته 20 به بعد، پرندگان با جیره غذایی تخمگذار تا پایان آزمایش تغذیه شدند. پرندگان گروه شاهد خوراک خشک دریافت نمودند. آب با خوراک در تیمار 2 (700 میلیلیتر/کیلوگرم)، تیمار 3 (800 میلیلیتر در کیلوگرم) و تیمار 4 (900 میلیلیتر در کیلوگرم) مخلوط شد. این مطالعه به مدت 100 روز به طول انجامید. نتایج نشان داد که تغذیه مرطوب، بازده غذا (FCR) بر حسب کیلوگرم خوراک به ازای تعداد دوازده تخم مرغ و کیلوگرم خوراک به ازای هر کیلوگرم وزن تخم را در مقایسه با کنترل بهبود بخشید. به طور کلی، نتایج نشان میدهد بهبود در بازده تبدیل خوراک در همه گروهها نسبت به شاهد اما بسیار معنیدار (05/0>P) بود و در گروه T3 که در آن آب در سطح 800 میلیلیتر به کیلوگرم خوراک اضافه شده بود.
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