The change of nursing for oestrus induction (biostimulation): Effect of contact between rabbit doe and its young

acute˜cs, E. Szudouble; Tobias, Géssica Paula; Kustos, K.; Gódor-Surmann, K.; Kotány, S.; Gulyas, Bela J.; Szira, G.

doi:10.1016/j.livsci.2007.01.146

Cited by 12 publications

(17 citation statements)

References 14 publications

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“…Development of the intestinal microbiota in mammals starts at birth and is influenced by many factors (Kirjavainen and Gibson, 1999;Penders et al, 2006;Eiben et al, 2007). As we supposed, the study presented here proved that doe-litter separation reduced the number of bacteria in both duodenum and caecum of suckling rabbits, especially before feeding creep feed.…”

Section: Discussionsupporting

confidence: 69%

Effects of doe-litter separation on intestinal bacteria, immune response and morphology of suckling rabbits

Zhang

Cui

Sun³

et al. 2018

World Rabbit Sci.

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Gut development is stimulated by exposure to microorganisms, especially early-life microbial exposure. This study aimed to investigate whether doe-litter separation, which is performed in many rabbit farms, affects this exposure and therefore inhibits the development of intestinal system in suckling rabbits. Immediately after parturition, Rex rabbit does (n=16) were adjusted to 8 kits per litter and divided into doe-litter separation (DLS) group and doe-litter together (DLT) group based on the conditions of the does. One healthy kit per litter was selected and sacrificed at 7 d, 14 d, 21 d and 28 d of age, and the number of total bacteria, Escherichia coli and Bacteroides-Prevotella, expression of interleukin 6 (IL-6) and interleukin 10 (IL-10) in duodenum and caecum were investigated by real-time polymerase chain reaction. The morphological parameters of duodenum and vermiform appendix were also measured. Our results showed that doe-litter separation affected the number of intestinal bacteria. At 7 d of age, except for caecal Escherichia coli, the number of the investigated bacteria was decreased by doe-litter separation (P<0.05). But 1 wk later, only the number of total bacteria and Bacteroides-Prevotella in caecal content (P<0.05) and Escherichia coli in duodenal content from DLS kits (P<0.05) were still lower than those from DLT kits. After being provided with supplementary food for 7 d, DLS kits had fewer total bacteria in caecal content (P<0.05) and fewer E. coli in duodenal content (P<0.01) than DLT kits. After growing to 28 d of age, kits in DLS group still tended to have fewer total bacteria in caecal content, and expression of IL-10 and secretion of secretory IgA (sIgA) in vermiform appendix in DLS group was obviously lower than kits in DLT group (P<0.05). The villus height:crypt depth ratio in duodenum at 3 rd wk and 4 th wk was decreased by DLS (P<0.05). Kits in DLS group had shorter villus height (P<0.05), higher crypt depth (P<0.05) and shorter vermiform appendix (P<0.05) at the end of the trial. Furthermore, separating kits from the doe had a negative effect on their average daily gain at 3 rd wk and 4 th wk (P<0.05). Limiting the microbiological contact with the mother during suckling period affected the kits' intestinal flora and could negatively affect the development of intestinal digestive and immune system and growth performance of kits.

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Section: Discussionsupporting

confidence: 69%

Effects of doe-litter separation on intestinal bacteria, immune response and morphology of suckling rabbits

Zhang

Cui

Sun³

et al. 2018

World Rabbit Sci.

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“…Controlled nursing was another practice identified as affecting the doe fertility (0.34, CI 95% [0.14-0.55]), the viability of rabbits at the nest (0.26, CI 95% [0.02-0.49]) and the mortality during the fattening period (-0.29, CI 95% [-0.52--0.06]). Controlled nursing was proven to naturally enhance does' receptivity at AI and subsequently their fertility (Eiben et al, 2007(Eiben et al, , 2008 but its impact on kit mortality was not so well established (Le Normand et al, 1994;Coureaud et al, 1998;Eiben et al, 2007 and2008). Our study tended to provide new evidence in favour of controlled nursing as a way to enhance the viability of young rabbits.…”

Section: Factors Affecting Doe Fertility and Viability Of The Rabbitsmentioning

confidence: 68%

Husbandry factors and health conditions influencing the productivity of French rabbit farms

et al. 2015

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In 2009, productivity data from 95 kindling to finishing rabbit farms in France were analysed to identify rearing factors and health conditions that influenced their productivity. Farm productivity, expressed on a yearly basis, was described with 4 productivity indexes: doe fertility and prolificacy, viability of young rabbits in the nest and mortality during the fattening period. The productivity data were obtained with the technical support of the farm and expressed in a standardised way. The average numerical productivity observed in the sample of farms was 50.9 rabbits produced per doe and per year (confidence interval at 95% [CI 95% ; 49.6-52.2]). The husbandry management and health conditions were described based on a questionnaire filled out during an interview with the farmer and a farm visit. Explanatory data were organised into meaningful blocks relative to biosecurity measures, maternity management, sanitary context and farm structure. The relationship among the 4 thematic blocks and the productivity indexes was studied in a single model using a partial least squares (PLS) regression model. Fertility (81.0%, CI 95% [80.0-82.0]), viability of young at nest (85%, CI 95% [85.0-85.3]) and mortality rate during fattening (7.2%, CI 95% [6.4-7.9]) were significantly associated with common factors related with maternity management and the health context, whereas prolificacy (9.7 live kits per parturition, CI 95% [9.5-9.9]) was mostly influenced by a specific set of variables pertaining to those 2 blocks. Farm structure and biosecurity measures had a limited impact on fertility and on kit viability before weaning. The health conditions of the doe herd and the fattening rabbits were found to be significantly associated with several productivity indexes, but their impacts on productivity were as high as the impact of the other blocks. Genetic strain of the females, doe replacement strategy and nursing and weaning practices appeared to significantly influence reproductive performance, viability of kits before weaning and mortality rate during the fattening period. Maternity management therefore seemed to be the key point in rabbit unit management that governed the numerical productivity of the farm.

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“…Biostimulated rabbit does yielded higher pregnancy rates and litter size at birth and at weaning compared to untreated does. Different biostimulation techniques have been used effectively in initiating and enhancing the sexual behaviour and reproductive cycles in rabbits (Eiben et al, 2007;Rodríguez-de Lara et al, 2010;González-Mariscal et al, 2015). The buck (López-Sebastian et al, 2008) and Whitten (Pallares and Gonzalez-Bulnes, 2009) effects have been proven to be a practical method to induce sexual activity in anoestral females.…”

Section: Discussionmentioning

confidence: 99%

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

2017

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Biostimulation is a non-hormonal and practical technique that has not yet been widely utilised when applied immediately before insemination to improve reproductive efficiency in livestock species. This study was conducted to determine the influence of short-term male biostimulation on behavioural and reproductive performance of inseminated rabbit does. A total of 142 female New Zealand White rabbits were randomly assigned to 3 groups. Females were either exposed to male odour (Odour group) or an adult aproned male (Male group), while the remaining does that were neither exposed to the male odour nor the adult male are considered the control group. All females were inseminated after the 2 h exposure session. Conception rates were determined by abdominal palpation 12 d after insemination. The results showed that conception rate of the male odour group (79.59%) was greater than that of male presence group (76.09%) and that of the control group (68.09%). Moreover, biostimulated does showed significant behavioural activities during the 2 h exposure session compared to the control group. Although no significant differences were recognised, litter size at birth and at weaning was slightly increased in biostimulated compared to control females. Nor were there any significant difference in serum oestradiol concentrations between treated groups. Conclusively, short-term 2 h biostimulation of rabbit does resulted in the appearance of various behavioural responses followed by differences in conception rates between groups after routine artificial insemination.

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The change of nursing for oestrus induction (biostimulation): Effect of contact between rabbit doe and its young

Cited by 12 publications

References 14 publications

Effects of doe-litter separation on intestinal bacteria, immune response and morphology of suckling rabbits

Effects of doe-litter separation on intestinal bacteria, immune response and morphology of suckling rabbits

Husbandry factors and health conditions influencing the productivity of French rabbit farms

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

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