Cross-breed effect upon the growth of goats in Ceará state
Four hundred and twenty SRD (nondescripted breed) does were cross-breeded at Iracema Farm of the Empresa de Pesquisa Agropecuária do Ceará in Quixadá, Ceará, CE, Brazil, with sires of the native breeds Marota, Canindé, Repartida, Moxotó and SRD and exotic breeds Anglo-Nubian and Bhuj. The kids were weighed at birth and each 28 days up to weaning and each two months from weaning to 12 months of age. At birth, live weight were higher for exotics cross-breeded kids as compared to native ones. Subsequently, live weights were the same for all kids, showing great maternal effect on the growth of kids. By 12 months old Anglo Nubian cross-breeded kids were heavier than Bhuj and SRD, and these were heavier than the native ones (22.09, 20.55 and 19kg). Native breed progeny did not show advantage over SRD crosses. This suggests that native breeds may be closely related to SRD. Male kids were havier than female at birth (2.28 to 1.94 kg), and even during post-weaning growth. Kids born single were heavier than twins from birth to six month old. Does weight at parturition affected the kids weight at birth.
Main Authors: | Fernandes, Antônio Amaury Orlá, Machado, Francisco Hélio Ferreira, Andrade, João Monteiro de Sales, Figueiredo, Elsio Antônio Pereira de, Shelton, Maurice, Pant, Kant Prasad |
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Format: | Digital revista |
Language: | por |
Published: |
Pesquisa Agropecuaria Brasileira
2014
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Online Access: | https://seer.sct.embrapa.br/index.php/pab/article/view/14989 |
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