FERTILITY AND PROLIFICACY TRAITS OF CHIOS AND FARAFRA EWES UNDER SUBTROPICAL EGYPTIAN CONDITIONS
نویسندگان
چکیده
منابع مشابه
Reproductive Performance of Rahmani and Chiose Sheep and Their Lambs under Upper Egypt Conditions
The differences of fertility and prolificacy traits for Rahmani and Chios ewes were studied in this investigation. The study was conducted during two consecutive years that included three lambing season with a total of 273 ewes (162 Rahmani and 111 Chios) bred, 230 ewes lambing, 280 lambs born and 237 lambs weaned. Breed of ewes had a significant effect on fecundity, lambing rate and weaning ra...
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تعداد 20 رأس میش نژاد نائینی 6+-24 ماهه، با میانگین وزن 2/3-+40 کیلوگرم، همراه با 20 رأس بره های آنها در قالب طرح کاملا تصادفی اثر بتائین و مکمل سولفات بر خصوصیات شیر و پشم و عملکرد بره ها بررسی شد. میش ها بطور تصادفی در چهار تیمار قرار گرفتند. تیمارها عبارت بودند از: 1-گروه شاهد 2-بتائین (05/0 درصد ماده خشک) 3-سولفات (24/0 سولفور درصد ماده خشک 4-بتائین هرماه با سولفات. جیره غذائی طبق nrc با مح...
15 صفحه اولProtein requirements of lactating Chios ewes.
The digestible protein requirements of lactating ewes were studied with Chios 3 ewes during the declining state of lactation in two nitrogen balance and three feeding trials. A 60 kg ewe producing 1.0 or 2.0 kg milk of 6% protein and maintaining weight equilibrium, required 134 and 230 g digestible protein daily, respectively. These requirements were obtained with ewes receiving 110 Kcal metabo...
متن کاملAssessment of expected breeding values for fertility traits of Murrah buffaloes under subtropical climate.
AIM The aim of the present study was to assess the influence of temperature and humidity prevalent under subtropical climate on the breeding values for fertility traits viz. service period (SP), pregnancy rate (PR) and conception rate (CR) of Murrah buffaloes in National Dairy Research Institute (NDRI) herd. MATERIALS AND METHODS Fertility data on 1379 records of 581 Murrah buffaloes spread o...
متن کاملField Study on Hatching Traits of Duck Eggs under Egyptian Environmental Conditions
The aim of this study was to evaluate the effect of environmental factor such as month and season on the hatching features of ducks, and to determine the suitable months or season for hatching. For this purpose, the hatching records of different duck breeds raised in ElSerw water fowl farm belonging to Turkey and Water Fowl Breeding Research Department, Animal Production Research Institute, fro...
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ژورنال
عنوان ژورنال: Journal of Animal and Poultry Production
سال: 2011
ISSN: 2090-3723
DOI: 10.21608/jappmu.2011.83425