Do parameters of seminal quality correlate with the results of on-farm inseminations in rabbits?

Lavara, R.; Mocé, E.; Lavara, F.; Viudes-de-Castro, M.P.; Vicente, J.S.

doi:10.1016/j.theriogenology.2005.01.009

Cited by 95 publications

(109 citation statements)

References 35 publications

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“…These results are in accordance with Brun et al (2002). Among these semen parameters, only Lavara et al (2005) obtained a negative but significant correlation between the linearity of sperm movement and fertility (r = −0.32), using heterospermic pools. In pigs, Broekhuijse et al (2011) obtained significant (P < 0.05) effects of progressive motility, curvilinear velocity and beat cross frequency on the farrowing rate.…”

Section: Means and Variations Of Reproductive Performancessupporting

confidence: 87%

“…In agreement with Brun et al (2002), fertility was strongly influenced (P < 0.001) by mass motility observed under a microscope (+8 percentage points of fertility when the semen showed at least a beginning of wave motion), by the percentage of motile cells observed by image analysis (+8 percentage points of fertility when it increased from the first to the second class, that is, from an average of 73% to 89% motile cells) and by the percentage of rapid sperms (+12 percentage points of fertility only when it increased from 64% to 79%). Lavara et al (2005) obtained a significant correlation between the percentage of motile cells and the kindling rate (r = 0.31; P < 0.05) using heterospermic pools. For these authors, regression models including motility and the morphological parameters explained 45% of the variation in kindling rate.…”

Section: Means and Variations Of Reproductive Performancesmentioning

confidence: 88%

“…It is assumed that using heterospermic pools makes it possible to moderate the 'buck' effect. In these conditions, Lavara et al (2005), using heterospermic pools but a relatively low number of sperms per insemination (6 × 10 6 spz/dose), obtained a correlation of 0.31 between the percentage of motile sperms assessed by image analysis and fertility. Some other studies integrate the physiological status of does at the moment of insemination using homospermic inseminations (1 ejaculate/ AI dose; Brun et al, 2002).…”

Section: Introductionmentioning

confidence: 97%

“…Some of them are the result of a collaboration between one or several AI centres. In that case, the number of inseminations is high, the physiological status of does at the moment of insemination is generally unknown, or only receptive does are selected (by observation of vulva colour, hormonal treatment or biostimulation to induce oestrus), and insemination is done using either pools of semen from the same buck obtained on the same day (Tussel et al, 2011) or heterospermic pools (Lavara et al, 2005). It is assumed that using heterospermic pools makes it possible to moderate the 'buck' effect.…”

Section: Introductionmentioning

confidence: 99%

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Relationships between rabbit semen characteristics and fertilising ability after insemination

Theau-Clément

Ailloud

Sánchez

et al. 2016

Animal

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This study aimed to analyse the relationship between rabbit semen characteristics and semen fertilising ability after insemination, which is generally found to be weak. Our hypothesis was that using high semen dilutions (1 : 19), non-oestrus-stimulated does, and homospermic inseminations would make it easier to predict semen fertilising ability. Semen characteristics were evaluated on 275 ejaculates of 128 INRA1001 bucks, distributed into five successive batches. A total of 1970 inseminations were performed. The continuous semen variables were subdivided into three classes of similar size to account for any non-linear relationship between semen characteristics and fertilising ability. Mass motility was divided into two classes according to the presence or absence of waves under microscope observation. Libido, the presence or absence of gel, volume, percentage of progressive sperms, curvilinear velocity, beat frequency of the flagellum, and straightness and linearity of sperm movement did not affect fertility, prolificacy or productivity. It was confirmed that mass motility, estimated by visual observation under the microscope, significantly influenced fertility as well as the percentage of motile and of rapid sperms, and the amplitude of lateral head displacement, estimated by a computer-assisted semen analysis system. To a lesser extent, the percentage of motile cells and of rapid cells significantly influenced prolificacy. Consequently, mass motility and the percentage of motile cells significantly influenced rabbit doe productivity (+1 live births/AI when the semen showed at least a beginning of wave movement, or when the percentage of motile cells was >84%). Interestingly, a gain of 1.5 rabbits was observed when the percentage of rapid cells changed from 64% to 79%, whereas productivity significantly dropped beyond 83% of rapid cells, reflecting a non-linear relationship.Keywords: rabbit, semen characteristics, fertilising ability ImplicationsThe relationship between rabbit semen characteristics and semen fertilising ability is generally found to be weak. Nevertheless, our results obtained using a high dilution and homospermic inseminations on rabbit does not stimulated for oestrus show that a simple selection on mass motility allows increasing productivity by one rabbit born alive per insemination, when the semen shows at least a beginning of wave movement. Moreover, computer-assisted semen evaluation provides additional markers of fertilising ability (such as the percentage of rapid sperms, and the amplitude of lateral head displacement) possibly non-linearly related to fertilising ability.

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Section: Means and Variations Of Reproductive Performancessupporting

confidence: 87%

Section: Means and Variations Of Reproductive Performancesmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Relationships between rabbit semen characteristics and fertilising ability after insemination

Theau-Clément

Ailloud

Sánchez

et al. 2016

Animal

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“…A total number of 196 ejaculates was used to perform 30 heterospermic pools per line. Sperm motility, concentration, acrosome status and abnormalities were assessed as described by Lavara et al (2005). Briefly, 10 μl aliquot samples from ejaculates were diluted 1 : 10 with Tris-citrateglucose extender for a previous sperm motility rate evaluation.…”

Section: Methodsmentioning

confidence: 99%

Effect of freezing extender composition and male line on semen traits and reproductive performance in rabbits

Viudes-de-Castro

Lavara

Safaa

et al. 2014

Animal

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This study was conducted to elucidate the effect of different freezing extenders on two lines selected for hyperprolificacy and longevity (H and LP, respectively). In extender A, dimethyl sulphoxide (Me 2 SO) and sucrose were used as cryoprotectants. In extenders B and C, the sucrose was replaced by 20% egg yolk, and in extender C the Me 2 SO was substituted by acetamide. Semen was packaged in 0.25 ml plastic straws and cooled at 5°C for 45 min, and then was frozen in liquid nitrogen vapour for 10 min before being plunged into the liquid nitrogen. Thawing was carried out by immersing the straws in a water bath at 50°C for 10 s. Frozen-thawed semen characteristics and reproductive parameters were affected by freezing. Extender C showed significantly lower post-thawing quality traits than any of the three extenders. Acrosome integrity was significantly improved when Me 2 SO was used as cryoprotectant. Sucrose replacement by 20% egg yolk had no effect on acrosome integrity but provided significantly lower sperm motility and viability. Freezing extender affected fertility rate, total born, number of implantation sites and gestational losses, obtaining better results when extender A was used. The acrosomal integrity after frozen-thawed process showed a significant correlation with fertility at 12 th day and also at birth, indicating that an increase in acrosomal integrity leads to an increase in both fertilities (12 th day and at birth). A positive correlation between motility of semen and implantation sites was found. The post-thawing quality traits of semen were not affected by the genetic line, although LP line showed higher total born and lower foetal and gestational losses. The findings of this study suggest that freezing extender composition has a significant effect on the success of rabbit sperm for preservation, and when Me 2 SO was used as permeable cryoprotectant sucrose provided better protection compared with egg yolk and improved reproductive traits, and, on the other hand, the male genotypes used in the present study had no effect on frozen-thawed sperm parameters but negatively affected some of the reproductive parameters.

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CABS1 Is Essential for Progressive Motility and the Integrity of Fibrous Sheath in Mouse Epididymal Spermatozoa

Zhao,

Zhou,

Nie

et al. 2024

Molecular Reproduction Devel

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The calcium‐binding protein spermatid‐associated 1 (CABS1) localizes to the principal piece of mature sperm flagella. Deletion of CABS1 results in subfertility in male mice, possibly due to an impaired annulus in the sperm flagella. However, it is unknown whether there are other mechanisms by which CABS1 affects male fertility. Our current investigation has uncovered that CABS1 is located in the midsection of the flagellum in testicular sperm and the principal piece in epididymal sperm. Moreover, male mice lacking CABS1 exhibit a defect in the progressive motility of sperm. Furthermore, the regulation of calcium levels, which has been reported to have a significant impact on sperm motility, capacitation, and the acrosome reaction, is also affected when sperm are exposed to alkalized high‐salt buffer (pH 8.0) and progesterone (100 μM) in Cabs1‐null spermatozoa. This alteration in calcium response may contribute to changes in the phosphorylation of PKA substrates and subsequent phosphorylation of tyrosine residues. Additionally, the absence of CABS1 leads to a defective fibrous sheath and abnormal configuration of doublet microtubules in post‐testicular sperm. These findings indicate that the absence of CABS1 also disrupts the structural integrity of the fibrous sheath, resulting in male subfertility. The highly conserved nature of CABS1 in humans suggests that it could potentially be a contributing factor to asthenozoospermia in men.

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Do parameters of seminal quality correlate with the results of on-farm inseminations in rabbits?

Cited by 95 publications

References 35 publications

Relationships between rabbit semen characteristics and fertilising ability after insemination

Relationships between rabbit semen characteristics and fertilising ability after insemination

Effect of freezing extender composition and male line on semen traits and reproductive performance in rabbits

CABS1 Is Essential for Progressive Motility and the Integrity of Fibrous Sheath in Mouse Epididymal Spermatozoa

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