Performances of Algerian-synthetic-strain rabbits managed with artificial insemination: Effect of the season
DOI:
https://doi.org/10.19182/remvt.31880Keywords
Oryctolagus, rabbit, weight, fertility, conception rate, mortality, season, AlgeriaAbstract
The objective of the study was to characterize the reproductive (fertility, reproductive productiveness, mortality) and weight performances of rabbits of the Algerian synthetic strain “ITELV 2006”, conducted by artificial insemination (AI) with a semi-intensive rhythm (parturition – AI: 12-day intervals). For two consecutive years (2017 and 2018), we monitored the breeding behavior of 73 female rabbits, submitted to 327 AI, at the animal house of the University of Chlef (Algeria). Throughout the study period, AI was performed using semen collected from males of the same genetic type and analyzed locally. Data on AI, palpation, parturition and weaning were recorded for all females. The season effect on weight criteria and reproductive performances of the rabbits was analyzed. All data were subjected to an analysis of variance. Females showed a good reproductive productiveness of 9.5 ± 2.4 total births, of which 8.4 ± 2.9 were born alive per parturition and 7.4 ± 2.6 weaned per weaning, with fertility rates of 85.6 ± 35.1% at palpation and 69.7 ± 45.9% at parturition. The adult weight of the females at AI was 3584 ± 391 g. The average weight of the rabbits was 63 ± 13 g at birth and 490 ± 81 g at weaning. A highly significant season effect was recorded on fertility and reproductive productiveness of rabbits, and on young rabbit weights and stillbirths, with the lowest values recorded in the hot season (63% fertility). However, the females remained productive during the hot season.
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© K.Boudour et al., hosted by CIRAD 2020
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