The Comparison of Lactation Curve with Different Models in Italian Origined Water Buffalo Herd Raised in Istanbul Province of Turkey
2016
Soysal, M. I.; Gürcan, K. E.; | Aksel, M.
This study was aimed to investigate biometry of lactation curve for Italian origined water buffalo in Istanbul province of Turkey. Total 72 heads Italian origined water buffalo were used at first lactation and three calving seasons as animal material. Wood, Wilmink and Cobby and Le Du models were chosen in this study. The general average lactation length, total lactation milk yield average and average daily milk yield were found 234 days, 1607.4 kg and 6.86 kg, respectively. Determination coefficient was calculated for Wood, Wilmink and Cobby and Le Du models for summer calving season as 0.94, 0.92 and 0.93, respectively. Wood model was found the highest coefficient of determination in general. Moreover, persistency (S) and maximum milk yields (Ymax) for Wood model were calculated. These values were found as 5.89 and 9.76 for first lactation in general group, respectively. Finally, this study is showed that the Wood model has the best fitted model among all models for all groups for first lactation for Italian origined water buffalo.
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