作者
S Ghosh, MKI Khan
发表日期
2014
卷号
9
期号
4
页码范围
124-131
简介
The study was conducted to identify a suitable milk-recording protocol for small-scale dairy production. Data from Holstein-Friesian × Local and Sahiwal × Local crossbred cows on 2 selected farms in Chittagong metropolitan area of Bangladesh form 2010 to 2011 was used to compare and evaluate the co-efficients of 3 different mathematical models of lactation curve for daily and test-day milk yield. The estimated model co-efficients and the 210 days predicted lactation milk yields varied significantly between crossbreds. The models were evaluated with 3 fit statistic values (Coefficient of Determination (R2), Root Mean Square Error (RMSE) and Coefficient of Variation (COV)). The highest lactation milk yield was found for Friesian × Local on Farm 1. The average daily milk yield of Friesian × Local was higher than Sahiwal crossbreds in both the farms. The Wood model was found to be suitable to transform test …
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