Biostimulation and reproductive performance of artificially inseminated rabbit does (Oryctolagus cuniculus)

El-Azzazi, F. E.; Hegab, Ibrahim M.; Hanafy, Ahmed M.

doi:10.4995/wrs.2017.7446

Cited by 6 publications

(5 citation statements)

References 41 publications

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“…In cattle, 'male effect' has received little ductive activity [43], the literature is not consistent [6,42], and therefore this practice has not yet been implemented as a common farm routine. In rabbits, 'male effect' appears to slightly improve doe reproductive performance [20]. However, significant effects were only found in does at first lactation [21] and published data have been contradictory [44,45], hampering consistent conclusions.…”

Section: Social Interaction Seems Not Influencing Reproductive Physiology In Farm Female Doementioning

confidence: 99%

“…Pheromone communication together with other visual and auditory cues participate in the biostimulation method called 'male effect', in which females exposed to sexually active males trigger activation of luteinizing hormone (LH) secretion and synchronized ovulation [19]. In rabbits, 'male effect' points to an improvement of doe reproductive performance [20] especially in does at first lactation [21]. However, little is known about the bodily secretions and pheromone cues involved in such behaviour.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of Biostimulation Methods based on Chemical Communication in Female Doe Reproduction

Villamayor¹,

Gullón²,

Yáñez³

et al. 2022

Preprint

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Biostimulation is an animal management practice that helps improve reproductive parameters by modulating animal sensory systems. Chemical signals, mostly known as pheromones, have a great potential in this regard. This study was conducted to determine the influence of short-term female rabbit exposure to different conditions, mainly pheromone-mediated, on reproductive parameters of inseminated does. Groups of 60 females/each were exposed to 1) female urine, 2) male urine, 3) seminal plasma and 4) female-female interaction, just before artificial insemination, and compared to isolated females controls (female-female separated). The following reproductive parameters were analyzed for each group: receptivity (vulvar color), fertility (calving rate), prolificacy and number of born alive and dead kits &frasl; litter. Our results showed that the biostimulation methods employed in this experiment did not significantly improve any of the analyzed parameters. However, female doe exposure to urine, especially to male urine, slightly increased fertility levels when compared to the rest of the experimental conditions. Female-female interaction before artificial insemination, which is a common practice in rabbit farms, did not have any effect, which suggests its removal to avoid unnecessary animal management and time cost. On the other hand, fertility ranges were lower for animals with pale vulvar color whereas no differences were noticed among the other three colours which measure receptivity (pink, red, purple), thus suggesting that these three colours could be grouped together. Additionally, equine chorionic gonadotropin injection could be replaced with various biostimulation methods, therefore reducing or replacing current hormonal treatments, and contributing to animal welfare and to a natural image of animal production.

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Section: Social Interaction Seems Not Influencing Reproductive Physiology In Farm Female Doementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Assessment of Biostimulation Methods based on Chemical Communication in Female Doe Reproduction

Villamayor¹,

Gullón²,

Yáñez³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…In cattle, 'male effect' has received little attention, and even though bull-cow interaction has proved to influence female reproductive activity [44], the literature is not consistent [6,43], and therefore, this practice has not yet been implemented as a common farm routine. In rabbits, 'male effect' appears to slightly improve doe reproductive performance [20]. However, significant effects were only found in does at first lactation [21] and published data have been contradictory [45,46], hampering consistent conclusions.…”

Section: Social Interaction Seems Not Influencing Reproductive Physio...mentioning

confidence: 99%

“…Pheromone communication together with other visual and auditory cues participate in the biostimulation method called the 'male effect', in which females exposed to sexually active males trigger activation of luteinizing hormone (LH) secretion and synchronized ovulation [19]. In rabbits, the 'male effect' points to an improvement of doe reproductive performance [20] especially in does at first lactation [21]. However, little is known about the bodily secretions and pheromone cues involved in such behavior.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Biostimulation Methods Based on Chemical Communication in Female Doe Reproduction

Villamayor

Gullón²,

Yáñez³

et al. 2022

Animals

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Biostimulation is an animal management practice that helps improve reproductive parameters by modulating animal sensory systems. Chemical signals, mostly known as pheromones, have a great potential in this regard. This study was conducted to determine the influence of short-term female rabbit exposure to different conditions, mainly pheromone-mediated, on reproductive parameters of inseminated does. Groups of 60 females/each were exposed to (1) female urine, (2) male urine, (3) seminal plasma and (4) female–female (F–F) separated, just before artificial insemination, and compared to a ‘golden method’ female–female interaction. The following reproductive parameters were analyzed for each group: receptivity (vulvar color), fertility (kindling rate), prolificacy and number of born alive and dead kits/litter. Our results showed that the biostimulation methods employed in this experiment did not significantly improve any of the analyzed parameters. However, female doe exposure to urine, especially to male urine, showed no significant higher fertility values (95.4%) when compared to the rest of the experimental conditions (on average 92.4%). Female–female interaction before artificial insemination, which is a common practice in rabbit farms, showed similar results as not establishing social interaction (F–F separated), which suggests that F–F interaction could be replaced by F–F separated, therefore avoiding unnecessary animal management and time cost. On the other hand, fertility ranges were lower for animals with a pale vulvar color whereas no differences were noticed among the other three colors which measure receptivity (pink, red, purple), thus suggesting that these three colors could be grouped together. Future studies should aim at determining potential chemical cues/pheromones released through bodily secretions that influence reproduction in rabbits, therefore contributing to animal welfare and to a natural image of animal production.

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“…The success of AI relies on understanding the mating and reproductive processes of rabbits, as the dilution ratio of semen is a critical factor influencing breeding efficiency and cost. Previous studies have investigated AI in rams, pigs, and cows (Di Iorio et al, 2014;EL-Azzazi et al, 2017;Singh et al, 2021;Hamid et al, 2021). The application of semen dilution in AI has remained largely unexplored in the context of rabbit farming in the Mekong Delta.…”

Section: Introductionmentioning

confidence: 99%

Improving Rabbit Fertility: The Relationship Between Semen Dilution Rate and Artificial Insemination Effectiveness

Khuong,

Len,

Trung

2024

Trop. Anim. Sci. J.

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This study aimed to assess the impact of different dilution ratios of rabbit semen to Tris Citrate Glucose (TCG) extender on doe fertility through artificial insemination in the Mekong Delta region of Vietnam. The experiment included three dilution ratios (1:10, 1:15, and 1:20), with each treatment replicated 12 times. Semen quality variables were evaluated and does were artificially inseminated using a standardized technique. Our findings revealed that the 1:20 dilution exhibited the highest percentage of successful insemination (66.67%) and the shortest gestation period (31.6 days). Furthermore, the 1:20 dilution treatment resulted in an average litter size at birth of 5.25 kits, a litter weight at birth of 290.37 g, and a litter weight at weaning of 1963.04 g. These results suggest that the 1:20 dilution ratio holds promise for artificial insemination in rabbit breeding programs in the Mekong Delta of Vietnam.

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Biostimulation and reproductive performance of artificially inseminated rabbit does (Oryctolagus cuniculus)

Cited by 6 publications

References 41 publications

Assessment of Biostimulation Methods based on Chemical Communication in Female Doe Reproduction

Assessment of Biostimulation Methods based on Chemical Communication in Female Doe Reproduction

Assessment of Biostimulation Methods Based on Chemical Communication in Female Doe Reproduction

Improving Rabbit Fertility: The Relationship Between Semen Dilution Rate and Artificial Insemination Effectiveness

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