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  1. International Journal of Dairy Science
  2. Vol 9 (4), 2014
  3. 124-131
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International Journal of Dairy Science

Year: 2014 | Volume: 9 | Issue: 4 | Page No.: 124-131
DOI: 10.3923/ijds.2014.124.131

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Authors


S. Ghosh

Country: Bangladesh

M.K.I. Khan

Country: Bangladesh

Keywords


  • Crossbred
  • fit-statistics
  • lactation curve
  • test-day milk yield record
Research Article

Identification of the Suitable Milk Recording Protocol for Small-scale Dairy Production

S. Ghosh and M.K.I. Khan
The study was conducted to identify a suitable milk-recording protocol for small-scale dairy production. Data from Holstein-FriesianxLocal and SahiwalxLocal 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 FriesianxLocal on Farm 1. The average daily milk yield of FriesianxLocal was higher than Sahiwal crossbreds in both the farms. The Wood model was found to be suitable to transform test-day milk yield into a 210-days predicted milk yield for all crossbreds based on higher R2 and COV and lower RMSE values. The test-day milk yield of 1 and 2 weeks interval was found to be best fitted with the actual 210-days milk yield by using Wood model for both crossbreds.
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How to cite this article

S. Ghosh and M.K.I. Khan, 2014. Identification of the Suitable Milk Recording Protocol for Small-scale Dairy Production. International Journal of Dairy Science, 9: 124-131.

DOI: 10.3923/ijds.2014.124.131

URL: https://scialert.net/abstract/?doi=ijds.2014.124.131

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