TY  - JOUR
T1  - Lactation Length and Lactation Milk Yield in Cattle in Sudan
AU - , E.O. Amasaib AU - , H.E. Mohamed AU - , A.N.M.A. Fadel Elseed 
JO  - Research Journal of Dairy Sciences
VL  - 2
IS  - 1
SP  - 1
EP  - 4
PY  - 2008
DA  - 2001/08/19
SN  - 1993-5277
DO  - rjdsci.2008.1.4
UR  - https://makhillpublications.co/view-article.php?doi=rjdsci.2008.1.4
KW  - Cattle
KW  -lactation length
KW  -lactation yield
KW  -milk yield
KW  -holstein-friensian
AB  - This study was conducted to compare some productive traits of imported versus locally bred and crossbred dairy cows (50, 56.5 and 62.5%) in 2 different farms in Khartoum, Sudan. The correlations between milk yield and lactation length for the 1st 3 lactations for Butana farm and the university farm were found to be 0.669 and 0.746, respectively. However, the correlation between total and 100 days mil yield for the 1st three lactations were found to be 0.762 and 0.746 for Butana and the university far, respectively. As for the breed effects, the 100 days milk yield were found to be 2156.6±599, 1566.67±383, 894.7±352.01, 732.76±1711.1 and 888.03±331.96 kg for imported Holstein-Friesian, locally born Holstein-Friesian, 50, 56 and 62.5% Friesian blood, respectively.
ER  -