TY - JOUR T1 - Effect of Season of Calving and Parity on Some Productive Traits in Pure and Crossbred Cattle in Sudan AU - , E.O. Amasaib AU - , A.M. Abu Nikhaila AU - , A.N.M.A. Fadel Elseed AU - , H.E. Mohamed JO - Research Journal of Dairy Sciences VL - 2 IS - 1 SP - 5 EP - 8 PY - 2008 DA - 2001/08/19 SN - 1993-5277 DO - rjdsci.2008.5.8 UR - https://makhillpublications.co/view-article.php?doi=rjdsci.2008.5.8 KW - Season KW -calving KW -parity KW -cattle KW -Sudan AB - This study was conducted to compare some productive traits (overall milk yield; 100 days milk yield; lactation length) and the effect of season of calving and parity number on imported versus locally bred and cross bred (50, 56.5 and 62.5%) in 2 different farms in Khartoum, Sudan. The results indicated a highly significant effect of breed in terms of 100 days milk yield; however, season of calving and parity showed insignificant effect in both farms examined. The lactation length impact on 100 days milk yield is significant at p< 0.01 between purebred and cross ones. ER -