Comparison of reproduction performances of a rabbit synthetic line and of rabbits of local populations in Algeria, in two breeding locations - first results [electronic resource].

Includes references.

The aim of this study was to evaluate the production of a synthetic line (Syn) of rabbits, obtained from the crossbreeding of a well adapted local population (Loc) with a more productive French strain, in comparison with two local populations, one from familial farms (Loc), the other from a public cooperative, called "white" because of its albino phenotype (W). They were placed under the same experimental conditions in 2 rabbitries of ITELV. In Baba Ali (Algiers) 50 does of each genotype were raised during 18 months and In Lamtar (Sidi Bel Abbes), 30 does of the Syn line and Loc population were compared during 16 months. Natural mating was used 10-11 days after parturition. Kits were weaned at 33-35 days Parameters of reproduction were measured at birth and weaning. In both situations the synthetic line’s does were heavier than the other genotypes,(+355g or +421 g and +199g compared respectively with L and W does P<0.0001). The observed litter sizes showed a superiority of the Syn line compared to Loc and W does (+2.5 or +2.15 and +1.9 born alive, P<0.0001 and +1.7 or 1.6 and +1.0 weaned, respectively in comparison with Loc and W populations). There was no genotype x season interactions which changed the genotypes ranking. It means that the synthetic line is as well adapted as local populations to local climatic conditions. So, this comparison confirms the interest of this synthetic line to develop rabbit production in Algeria.

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