أعضاء هيئة التدريس - جامعة بنها
Days-open adjustment factors and genetic evaluation for lactation traits in Egyptian buffaloes - 1993
Annals of Agricultural Science at Moshtohor, Benha University, Egypt • 1993
معلومات البحث
المؤلفون
Khalil M.H.
الكلمات المفتاحية
Egyptian buffaloes, days-open, adjustment factors, genetic evaluation, lactation traits
المجلة العلمية
Annals of Agricultural Science at Moshtohor, Benha University, Egypt
الناشر
Faculty of Agriculture, Benha University, Egypt
المجلد
31
العدد
2
الصفحات
865-884
publication.type
Local
رابط البحث
Open Link
المواد المرفقة
Not Available
الملخص
Data on 2732 lactation records for an Egyptian buffalo herd including 576 buffalo cows (Paternal half-sisters) representing 67 sires were used to estimate the genetic and phenotypic variations and covariations of lactation period (LP) and yield of milk recorded on 90 days (90DY). 180 days (180DY). 305 days (305DY) and total lactation (TY). Averages of 90DY, I SODY. 305DY, TY and L.13 were 604, 1003, 1366. 1567 kg and 289 days., respectively Parity effects were highly significant (P