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| Content Provider | Springer Nature Link |
|---|---|
| Author | Boujenane, Ismaïl |
| Copyright Year | 2015 |
| Abstract | The objective of this study was to evaluate growth at fattening, carcass characteristics and carcass measurements of 19 Sardi, 19 D’man and 52 meat-sire crossbred lambs of both sexes slaughtered at 50 and 70 % of mature weight. Crossbred lambs were born from Sardi, D’man and F1 Sardi × D’man ewes mated to meat-breed rams (Ile de France and Mérinos Précoce). Lambs of each group (breed type by sex) were chosen at random and slaughtered either at 50 or 70 % of mature weight. Sardi and D’man purebred lambs had significantly lower growth at fattening, pre-slaughter live weight, empty body weight, hot carcass weight, carcass conformation, carcass fatness, red offal, white offal, sub-products and non-carcass fat than meat-sire crossbred lambs. Differences were 42.2 g/day, 5.03 kg, 4.46 kg, 2.57 kg, 0.96, 0.59, 0.18 kg, 0.39 kg, 0.63 kg and 0.12 kg, respectively. B and Wr measurements of meat-sire crossbred lambs were higher than those of Sardi and D’man purebred lambs, whereas the F measurement was in favour of purebreds. Likewise, CC, G/F and Wr/Th indices of meat-sire crossbreds were higher than those of purebreds; however, the opposite was observed for L/G and Th/G indices. Maternal heterosis was positive and not significant for most traits, negative and not significant for few traits (P > 0.05), but negative and significant for the proportion of sub-products (P < 0.05). It was concluded that growth and carcass characteristics of local sheep can be significantly improved by terminal crossbreeding. |
| Starting Page | 1363 |
| Ending Page | 1371 |
| Page Count | 9 |
| File Format | |
| ISSN | 00494747 |
| Journal | Tropical Animal Health and Production |
| Volume Number | 47 |
| Issue Number | 7 |
| e-ISSN | 15737438 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2015-06-20 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Sheep D’man breed Sardi breed Meat breed Crossbreeding Fattening Carcass weight Carcass measurements Zoology Veterinary Medicine |
| Content Type | Text |
| Resource Type | Article |
| Subject | Animal Science and Zoology Food Animals |
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