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Abstract : |
This study was undertaken to evaluate the performances of economic trait of different dairy cows under village condition. The result showed that the average milk production of Holstein-Friesian cross, Sahiwal cross, Sindhi cross and indigenous dairy cows were 6.293.16, 4.721.01, 3.731.10 and 2.100.697 l per day, respectively. The average length of lactation period for Holstein-Friesian, Sahiwal and Sindhi cross and indigenous dairy cows were 26324.73, 256.3124.31, 255.8627.58 and 230.6230.68 respectively. The average post-partum heat periods of Holstein-Friesian, Sahiwal and Sindhi cross and indigenous dairy cows were 98.7540.58, 97.6336, 03, 114.6521.24 and 108.4636.32 days, respectively. The calving interval of Holstein-Friesian, Sahiwal and Sindhi cross and indigenous dairy cows were 373.2533.25, 383.4234.44 , 397.7737.07 and 418.7836.74 days, respectively. The average length of dry periods of Holstein-Friesian, Sahiwal and Sindhi cross and indigenous dairy cows were 12746.66,136.0523.42, 138.3941.78 and 17068.89 days, respectively. It was concluded that economic trait, productive and reproductive performances of indigenous cows were inferior to crossbred dairy cows. , This study was undertaken to evaluate the performances of economic trait of different dairy cows under village condition. The result showed that the average milk production of Holstein-Friesian cross, Sahiwal cross, Sindhi cross and indigenous dairy cows were 6.29?3.16, 4.72?1.01, 3.73?1.10 and 2.10?0.697 l per day, respectively. The average length of lactation period for Holstein-Friesian, Sahiwal and Sindhi cross and indigenous dairy cows were 263?24.73, 256.31?24.31, 255.86?27.58 and 230.62?30.68 respectively. The average post-partum heat periods of Holstein-Friesian, Sahiwal and Sindhi cross and indigenous dairy cows were 98.75?40.58, 97.63?36, 03, 114.65?21.24 and 108.46?36.32 days, respectively. The calving interval of Holstein-Friesian, Sahiwal and Sindhi cross and indigenous dairy cows were 373.25?33.25, 383.42?34.44 , 397.77?37.07 and 418.78?36.74 days, respectively. The average length of dry periods of Holstein-Friesian, Sahiwal and Sindhi cross and indigenous dairy cows were 127?46.66,136.05?23.42, 138.39?41.78 and 170?68.89 days, respectively. It was concluded that economic trait, productive and reproductive performances of indigenous cows were inferior to crossbred dairy cows., |
