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PERFORMANCE OF 3 RABBITS STRAINS AND THEIR RECIPROCAL CROSSES IN EGYPT DURING SUMMER

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PERFORMANCE OF 3 RABBITS STRAINS AND THEIR RECIPROCAL CROSSES IN EGYPT DURING SUMMER

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dc.contributor.author RASHWAN, A.A.
dc.contributor.author YAMANI, K.A.
dc.contributor.author ABD EL-GHANI, A.I.
dc.date.accessioned 2011-03-21T09:40:24Z
dc.date.available 2011-03-21T09:40:24Z
dc.date.issued 1997
dc.identifier.issn 1257-5011
dc.identifier.uri http://hdl.handle.net/10251/10429
dc.description.abstract [EN] The present work was conducted to study the performance of 3 rabbits strains: New Zealand White (NZW), Baladi Black (BB) and Baladi Red (BR) and 4 of the reciproca! crosses between NZW and Baladi rabbits, during hot summer of Egypt. Values of litter size at birth, weaning (28 days) and marketing ages (84 days) did not differ significantly as affected by genotype, sex or the interaction between them. Mortality values of offspring from birth to weaning age differed significantly (P<0.01) among the 7 genetic types and NZWxNZW showed the rower value (5.4%), while BRxBR showed the highest value (41.1 %). They were no significant differences for mortality from weaning to marketing age due to the effect of genotype, sex or interaction between them. Kit weight at birth was significantly higher (P<0.05) for crossbreds (72 to 78g) than purebreds (48 to 54g), the same trend was realized at marketing age, except for BBxBB group. Significant (P<0.05) interaction between genotype and sex was shown for kit weight at birth, females of BBxNZW cross showed the highest kit weight at birth (80 g). Male kits significantly (P<0.05) surpassed the female kits in marketing live weight at 12 weeks of age (1420 vs 1357 g). The difference between purebred and crossbred groups in the average daily gain was statistically significant (P<0.05) from birth to weaning age (0-28 daY.s). Reciproca! crosses between NZW and BB were of heavier da1ly gain than that of the reciproca! crosses between NZW and BR. From weaning to marketing age (28-84 days), daily gain of the crossbred groups was superior (17.5 to19.4g/day) and the liveweight heavier than that of the purebred ones (14.1 to 16.4g/day). Positive superiority for the studied crosses was observed for the litter size at weaning, mortality rate from birth to weaning, live weight at birth and weight gain from weaning to marketing age. es_ES
dc.description.abstract [FR] Ce travail a pour objet d'étudier les petformances de 3 souches de lapins : Néo-zélandais blancs (NZW), Baladi Noir (BB) et Baladi Rouge (BR) ainsi que 4 des croisements réciproques impliquant les NZW dans des conditions estivales en Egypte. Le génotype, le sexe ou l'interaction entre les souches n'influencent pas de maniere significative la taille de la portée 8 la naissance, su sevrage (28 jours) ou 8 l'Age commercial (84 jours). Le taux de mortalité de la naissance su sevrage varíe entre les 7 génotypes (P<0,01) et les lapereaux NZWxNZW ont le taux le plus bas (5,4%) tandis que les sujets BRxBR ont le taux le plus élevé (41, 1%). Pour la mortalité entre le sevrage et /'§ge commercial, il n'y a pas de différences significatives dues 8 l'effet du génotype, du sexe ou de leur interaction. Le poids des lapereaux 8 la naissance est significativement plus élevé (P<0,05) pour les croisements (72 8 78g) que pour les races pures (48 8 54g) ; on note la m~me tendance 8 l'Age commercial sauf pour le groupe BBxBB. 11 existe une interaction significativa (P<0,05) génotype-sexe sur le poids 8 la naissance des lapereaux, les femelles issues du croisement BBxNZW ayant le poids 8 la naissance le plus élevé (80g). Le poids des lapins m§les dépassent significativement (P<0,05) celui des femelles 8 /'§ge de 12 semaines (1420 vs 1357g). La différence entre les lapins de race pure et les croisements est significative (P<0,05) en terme de gain de poids moyen de la naissance au sevrage (0-28 jours). Les croisements réciproques entre NZW et BB donnent des vitesses de croissance avant sevrage plus fortes que les croisements réciproques entre NZW et BR. Du sevrage 8 /'§ge commercial (28-84 jours) le gain de poids et le poids vif des lapins issus de croisement sont supérieurs 8 ceux des lapins de races pures. La supériorité des performances des lapins croisés est démontrée pour la taille de la portée au sevrage, le taux de mortalité entre la naissance et le sevrage, le poids vif 8 la naissance et le gain de poids du sevrage a l'àge commercial.
dc.language Inglés es_ES
dc.publisher World Rabbit Science. ICTA. UPV es_ES
dc.relation.ispartof World Rabbit Science
dc.rights Reserva de todos los derechos es_ES
dc.title PERFORMANCE OF 3 RABBITS STRAINS AND THEIR RECIPROCAL CROSSES IN EGYPT DURING SUMMER es_ES
dc.type Artículo es_ES
dc.date.updated 2011-03-21T08:35:10Z
dc.identifier.doi 10.4995/wrs.1997.319 es_ES
dc.rights.accessRights Abierto es_ES
dc.description.bibliographicCitation Rashwan, A.; Yamani, K.; Abd El-Ghani, A. (1997). PERFORMANCE OF 3 RABBITS STRAINS AND THEIR RECIPROCAL CROSSES IN EGYPT DURING SUMMER. World Rabbit Science. doi:10.4995/wrs.1997.319 es_ES
dc.description.accrualMethod SWORD es_ES
dc.relation.publisherversion https://doi.org/10.4995/wrs.1997.319 es_ES
dc.description.volume 05
dc.description.issue 2
dc.identifier.eissn 1989-8886 es_ES


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