UN SDG
Livestock Studies 1975, Vol 15, Num, 1-2     (Pages: 022-034)
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The growth rate and the characteristics of the carcass in Merino and Ile de France x Merino cross of yearling male

Mehmet ÖRKİZ ,Halil AKÇAPINAR

- This experiment was conducted on 4 genotypic groups; Karacabey Merino (KB), Konya Merino (KO) purebred male yearling lambs Ile de France x Konya Merino (KOM), Ile de France x Karacabey Merino (KBM) F1 crossbred male yearling lambs, under the same ration and similar environmental conditions. After 75 days of lot-feeding the body weight improvement, the cost per kg. of body weight, carcass yield and carcass characteristics were investigated.

Purebred genotypic groups fed on the same amount of ration gained more body weight as compared to crossbred groups. Daily body weight increases on KO, KB, KBM and KOM groups were found to be 203.47, 198.67, 179.06 and 179.05 gr respectively. The cost per kg of body weight of KO, KB, KBM and KOM was figured out as 8.53, 8.59, 9.44 and 9.46 TL respectively.

Based on their carcass yield and MLD (loin eye area) the KOM genotypic groups were more better than the other groups. The KBM genotiypic groups were ranked second. Considering these characteristics one can conclude that the crossbred genotypic groups on lot feeding had a higher carcass yield. Keywords :