| Dissertation note |
The study was conducted to determine the relationship between live body weight and body measurements in Hissardale sheep at Livestock Experiment Station Jahangirabad, district Khanewal. The Hissardale sheep were divided into five age groups designated as, A=0-6 months, B= 7-12 months, C= 13-18 months, D= 19-24 months and E group contained more than 24 months age animals. The data on body weight and body measurements; body length (BL), height at withers (HAW), heart girth (HG), neck length (NL), neck width (NW), ear length (EL), ear width (EW), tail length (TL) and tail width (TW) will be taken by using measuring tape. Data on total 314 observations of different age groups of sheep were collected. The mean height at wither of Hissardale sheep in five age groups (A, B, C, D, and E group) was found to be 48.85 ±2.35, 55.50 ± 1.85, 61.91 ± 1.79, 63.59 ± 1.53, 66.35 ± 3.22cm. The mean body length (cm) of Hissardale sheep in five age groups (A, B, C, D, and E group) was found to be 47.45 ±2.69, 54.27 ± 1.80, 60.66 ± 1.78, 63.91 ± 2.02, 70.69 ± 3.51cm respectively. The mean heart girth of Hissardale sheep in five age groups (A, B, C, D, and E group) was found to be 48.17 ±2.83, 55.64 ± 1.95, 60.83 ± 1.95, 64.94 ± 1.90, 80.67 ± 3.65cm respectively. The mean ear length of Hissardale sheep in five age groups (A, B, C, D, and E group) was found to be 12.41 ± 0.93, 12.50 ± 0.59, 12.68 ± 0.63, 13.53 ± 0.72, 14.21 ± 1.71cm respectively. The mean ear width of Hissardale sheep in five age groups (A, B, C, D, and E group) was found to be 6.31 ± 0.65, 6.31 ± 0.63, 6.70 ± 0.65, 6.35 ± 0.53, 7.15 ± 0.60cm respectively. The mean neck length of Hissardale sheep in five age groups (A, B, C, D, and E group) was found to be 14.85 ± 1.70, 15.23 ± 0.90, 15.14 ± 0.63, 15.93 ± 0.68, 19.36 ± 1.57cm respectively. The mean neck width of Hissardale sheep in five age groups (A, B, C, D, and E group) was found to be 12.22 ± 1.165, 13.90 ± 0.72, 13.68 ± 0.67, 14.42 ± 0.80, 16.30 ± 1.69cm respectively. The mean tail length of Hissardale sheep in five age groups (A, B, C, D, and E group) was found to be 22.25 ± 2.59, 22.30 ± 0.97, 22.24 ± 1.85, 25.97 ± 2.67, 27.64 ± 4.22cm respectively. The mean tail width of Hissardale sheep in five age groups (A, B, C, D, and E group) was found to be 1.98 ± 0.38, 2.60 ± 0.30, 2.95 ± 0.30, 3.54 ± 0.46, 4.32 ± 0.61cm respectively. The correlation coefficients between body weight and other body measurements in age group of 0-6 month: body weight, height at wither, body length, heart girth, ear length, ear width, neck length, neck width, tail length and tail width were found to be 0.798, 0.696, 0.586, 0.467, -0.18, -0.039, 0.458, 0.253, 0.153 respectively. The correlation coefficients between body weight and other body measurements in age group of 7-12 months: body weight, height at wither, body length, heart girth, ear length, ear width, neck length, neck width, tail length and tail width were 0.855, 0.835, 0.850, 0.461, -0.137, 0.316, 0.599, 0.320, 0.443 respectively. The correlation coefficients between body weight and other body measurements in age group of 13-18 months: body weight, height at wither, body length, heart girth, ear length, ear width, neck length, neck width, tail length and tail width were 0.676, 0.536, 0.708, 0.455, 0.350, 0.666, 0.597, 0.397, and 0.643 respectively. The correlation coefficients between body weight and other body measurements in age group of 19-24 months: body weight, height at wither, body length, heart girth, ear length, ear width, neck length, neck width, tail length and tail width were 0.737, 0.828, 0.769, 0.275, 0.508, 0.600, 0.575, 0.617, and 0.537 respectively. The correlation coefficients between body weight and other body measurements in age group of above 24 months: body weight, height at wither, body length, heart girth, ear length, ear width, neck length, neck width, tail length and tail width were 0.549, 0.466, 0.425, 0.116, 0.253, 0.437, 0.463, 0.327, and 0.077 respectively.
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