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Effects of Roof Ceiling and Sand Flooring on Microclimate of Shed and Physiological Indices of Crossbred Jersey Cows

Dharma Sahu, Dilip Kumar Mandal, Champak Bhakat, Anupam Chatterjee, Ajoy Mandal, Mohan Mondal.

Abstract
The objective of the present study was to find out the effect of roof thermal insulation and soft flooring on microclimate of cow shed, physiological response and production performance of crossbred Jersey cows. Twenty Jersey crossbred cows were divided into 2 groups, 10 in each. Two types of housing were compared- (i) Existing shed (T0)- having asbestos roof and concrete floor and (ii) Modified shed (T1)- thatch ceiling under asbestos roof and partial replacement of concrete floor with sand bed. The surface temperatures of the thatch ceiling at covered area and sand bed floor at open area were significantly lower in the modified shed (T1) in both the seasons as compared to existing shed (T0). Physiological indices viz. rectal temperature, pulse rate and respiration rate of Jersey crossbred cows were significantly higher in T0. The daily milk yield of T1 group cows was significantly higher than that of T0. Housing modification by thatch ceiling and soft flooring by sand bed helped improving micro-climate of shed, relieved stress conditions of Jersey crossbred cows and showed enhanced milk yield.

Key words: Sand Floor, Thatch Roof, Temperature, Respiration Rate, Crossbred Cow, Milk Yield.



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