Formerly International Journal of Basic and Applied Agricultural Research

Studies on fortnightly test day milk yields and non-genetic factors affecting these part milk yields in Sahiwal and crossbred cattle

DHANRAJ G. GIRIMAL, D. KUMAR, B. N. SHAHI, A. K. GHOSH and SUNDIP KUMA
Pantnagar Journal of Research, Volume - 18, Issue - 2 ( May-August, 2020)

Published: 2020-09-01

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Abstract


The present study was conducted utilizing data available on 166 Sahiwal cattle and 799 cattle belonging to Jersey, Holstein Friesian, or Red Dane inheritance as exotic breed in different combinations with Sahiwal as native breed .The exotic inheritance level for different crossbred cattle varied from 50% to 75% level. The local breed used was Sahiwal. These data were utilized to know the average values for different fortnightly test day yields from first fortnightly test day milk yield (FTDY-1) to twenty one fortnightly test day yield (FTDY-21).The means of these test day milk yields (FTDY-1 to FTDY-21)in kg in case of Sahiwal cattle were found as 4.29 0 .5, 5.340.7, 7.71 0.6, 7.630.8, 7.45 0.10, 7.11 0.9, 7.08 0.10, 6.87 0.75, 6.34 0.08, 6.12 0.64, 6.34 0.12 , 5.96 0.54, 5.65 0.12, 5.28 0.10, 4.74 0.10, 4.24 0.11, 3.49 0.84, 3.28 0.07, 2.93 0 .47, 2.73 0.03 and 2.50 0.03,respectively.The corresponding figures in case of crossbred cattle were observed as 4.480.3, 5.60.2 , 9.530.48 , 9.350.67, 8.70.45, 8.60.6 , 8.350.08, 7.830.3 , 7.60.7 , 7.110.08, 6.560.45 , 6.080.32 , 5.710.8 , 5.270.21 , 5.260.18, 4.980.78 , 5.130.2 , 4.510.74 , 5.030.11 , 4.750.02 and 4.490.81.The fortnightly yields did not vary according to different periods and seasons in Sahiwal and crossbred cattle.


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