Application of Statistical Models for Milk Yield Estimation in Surti Buffalo
Loading...
Date
2011
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
UAS, Dharwad
Abstract
Indian buffaloes represent 56 per cent of the world buffalo population and
have the privilege of having the best breeds of buffaloes for milk production. Surti
buffalo is one of the best breed which is originated from Kaira district of Gujarat.
Milk production is being most predominant for any dairy farm hence in order to keep
the dairy profitable manner, models were essential for growth performance of any
given animal. The study was carried out based on secondary data. The data was
collected from the Department of Animal Sciences, UAS, Dharwad from 1974-75 to
2004-05 for 31 years. The present study was carried on utilizing the information
available on 310 Surti buffaloes of 1340 lactations were considered on farm born
buffaloes.
Cobb Douglas model was used for estimation of 305 days milk yield and total
milk yield in Surti buffalo with high efficiency. This model utilises multiple
characters for estimates, hence it was found to be more efficient. Sixth degree
polynomial was found to be more efficient in estimating individual 305 days milk
yield and total milk yield up to four lactations followed by Richards model for
individual lactations, the number of observations available varied. This would help
the farm managers to use the equation for early estimation of production availability
of Surti buffalo. Multiple linear regression equations to estimate life time milk
production of Surti buffalo. The productive life of Surti buffalo can be safely
estimated up to fourth lactation, by using the equations developed. This would help in
taking proper managerial decisions to remove low producing animals from the farm.
Description
Keywords
Agricultural Statistics