Relationship between body measurements and reproductive performance of Ossimi and Rahmani ewes
2001
Kishk, W.H. | Osman, A.A. | Awad, M.M. (Suez Canal Univ., Ismailia (Egypt). Faculty of Agriculture)
Body measurements (length, height, weight, ano-genital distance, loin width and back hock distance) and reproductive parameters (reproductive status and age, age at first service, number of services per conception, lambing interval, twinning rate and lamb weight) were determined for 100 Rahmani and Ossimi ewes. Ewes were subjected to heat detection twice a day for two successive cycles during four different seasons of the year. Body weight correlated positively with the other physical body characteristics, r=0.78, 0.74, 0.68, 0.41 and 0.66 for body length, body height, back hock distance, ano-genital distance and loin width, respectively. On the other hand, reproductive traits correlated positively with each other, especially lambing interval and number of services per conception (r=0.97). Highly correlated estimates were found between physical body characteristics and reproductive status especially for lamb weight and mothering ability. Body dimensions may thus directly influence most of the reproductive traits.
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