Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
25/01/2017 |
Data da última atualização: |
25/01/2017 |
Autoria: |
MAHAJAN, J. M.; ACHARYA, R. M.; DHILLON, J. S. |
Título: |
Cross-breeding for the production of fine wool: effect on wool production. |
Ano de publicação: |
1980 |
Fonte/Imprenta: |
The Indian Journal of Animal Sciences, v. 50, n. 7, p. 553-557, Jul. 1980. |
Idioma: |
Inglês |
Conteúdo: |
Abstract : Data on 6-monthly weight of greasy and clean fleeces were collected in 1973 and 1974 on 299 yearling ewes representing Malpuras, Choklas and Rambouillets, and Rambouillet crossbreds. For the 3 breeds resp., greasy fleece weight averaged 0.53, 1.15 and 2.07 kg. Greasy fleece weight/kg postshearing body weight averaged 0.03, 0.07 and 0.06 kg. For Rambouillet X Malpura F1s, F2s, and 5/8 and 3/4 crossbreds, greasy fleece weight averaged 1.20, 1.11, 1.25 and 1.15 kg resp., and greasy fleece weight/kg body weight 0.05, 0.05, 0.06 and 0.06 kg. Corresponding figures for Rambouillet X Choklas were 1.42, 1.29, 1.27 and 1.22 kg, and 0.07, 0.07, 0.06 and 0.06 kg. There were significant differences among genetic groups in greasy fleece weight and in fleece weight/kg body weight. The improvement in fleece weight of the 4 Malpura crossbred groups compared with purebreds was 128.77, 113.39, 139.81 and 119.11% resp. vs. 23.66, 12.57, 10.76 and 5.97% for the Chokla crossbreds. Heterosis ranged from 6.72 to 27.00% for greasy fleece weight, and from 4.03 to 18.18% for greasy fleece weight/kg body weight. It was concluded that there was little to gain in wool production by increasing Rambouillet inheritance beyond 50%. |
Thesagro: |
Cruzamento; Lã; Ovino; Produção animal. |
Thesaurus Nal: |
Animal production; Crossbreds; Sheep; Wool production. |
Categoria do assunto: |
G Melhoramento Genético |
Marc: |
LEADER 01881naa a2200241 a 4500 001 2061774 005 2017-01-25 008 1980 bl uuuu u00u1 u #d 100 1 $aMAHAJAN, J. M. 245 $aCross-breeding for the production of fine wool$beffect on wool production. 260 $c1980 520 $aAbstract : Data on 6-monthly weight of greasy and clean fleeces were collected in 1973 and 1974 on 299 yearling ewes representing Malpuras, Choklas and Rambouillets, and Rambouillet crossbreds. For the 3 breeds resp., greasy fleece weight averaged 0.53, 1.15 and 2.07 kg. Greasy fleece weight/kg postshearing body weight averaged 0.03, 0.07 and 0.06 kg. For Rambouillet X Malpura F1s, F2s, and 5/8 and 3/4 crossbreds, greasy fleece weight averaged 1.20, 1.11, 1.25 and 1.15 kg resp., and greasy fleece weight/kg body weight 0.05, 0.05, 0.06 and 0.06 kg. Corresponding figures for Rambouillet X Choklas were 1.42, 1.29, 1.27 and 1.22 kg, and 0.07, 0.07, 0.06 and 0.06 kg. There were significant differences among genetic groups in greasy fleece weight and in fleece weight/kg body weight. The improvement in fleece weight of the 4 Malpura crossbred groups compared with purebreds was 128.77, 113.39, 139.81 and 119.11% resp. vs. 23.66, 12.57, 10.76 and 5.97% for the Chokla crossbreds. Heterosis ranged from 6.72 to 27.00% for greasy fleece weight, and from 4.03 to 18.18% for greasy fleece weight/kg body weight. It was concluded that there was little to gain in wool production by increasing Rambouillet inheritance beyond 50%. 650 $aAnimal production 650 $aCrossbreds 650 $aSheep 650 $aWool production 650 $aCruzamento 650 $aLã 650 $aOvino 650 $aProdução animal 700 1 $aACHARYA, R. M. 700 1 $aDHILLON, J. S. 773 $tThe Indian Journal of Animal Sciences$gv. 50, n. 7, p. 553-557, Jul. 1980.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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