Use of oxytocin and cloprostenol to facilitate semen collection by electroejaculation or transrectal massage in bulls

Palmer, Colin W.; Amundson, S.D.; Brito, Leonardo F.C.; Waldner, Cheryl L.; Barth, A.D.

doi:10.1016/j.anireprosci.2003.07.003

Cited by 46 publications

(35 citation statements)

References 15 publications

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“…In many countries electro ejaculation is routinely used when conducting BBSE but this technique is prohibited on unanaesthetized animals in Sweden and in many other European countries [14]. Collection of semen using an artificial vagina is by far the most common method used in Swedish dairy bulls.…”

Section: Discussionmentioning

confidence: 99%

Changes in mean scrotal circumference in performance tested Swedish beef bulls over time

2012

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BackgroundThere is a growing interest in beef cattle breeding in Sweden. The majority of the females are bred naturally, which is why it is important to choose healthy fertile bulls to obtain good reproduction and profitability. The breeding soundness evaluation includes measurement of scrotal circumference (SC). Our aim was to analyze if the SC of performance tested beef bulls has changed over the years. In total, 1332 bulls (Angus, Charolais, Hereford and Simmental) from 13 batches (1997-2010) were included in the study. Case book entries from final evaluation of the bulls, 11-13 months old, were compiled and analyzed.ResultsAn overall mean SC of 34.7 cm independent of breed and age was found which is above the set minimum level. Only eleven bulls did not reach the minimum level. An increase in SC of 0.06-0.07 cm/year was shown for all breeds. In all (1997-2010), the increase of the average SC (independent of breed and age) was approximately 1 cm. The positive trend was apparent for all breeds but only statistically significant for the Charolais breed.ConclusionsIn conclusion, our results indicated an increase in the SC over time, which improves the possibilities to obtain performance tested beef sires in Sweden with the potential for achieving better fertility results.

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Section: Discussionmentioning

confidence: 99%

Changes in mean scrotal circumference in performance tested Swedish beef bulls over time

2012

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“…This procedure has recently been the object of research that has confirmed its feasibility in both yearling and range beef bulls of mixed breeds and ages [7,8,15,16]. However, not all bulls allow the collection of semen, and the quantity and quality of semen are lower for those of samples collected by EE or caudal epididymal dissection [8,16]. Moreover, a trial of a small number of bulls was conducted to determine whether the semen samples collected by TRM are comparable with those collected by AV [17].…”

Section: Introductionmentioning

confidence: 83%

“…Using this method, it is possible to obtain ejaculates from untrained bulls without using any expensive equipment, and most bulls do not vigorously object to it [14]. This procedure has recently been the object of research that has confirmed its feasibility in both yearling and range beef bulls of mixed breeds and ages [7,8,15,16]. However, not all bulls allow the collection of semen, and the quantity and quality of semen are lower for those of samples collected by EE or caudal epididymal dissection [8,16].…”

Section: Introductionmentioning

confidence: 99%

“…Consequently, the semen from yearling beef sires is frequently not evaluated before the bulls are used for breeding purposes. To avoid this limitation, EE is typically used in many countries to conduct BBSEs, but this technique is prohibited or discouraged in several European countries [8,9]. Semen collection by TRM has been described in cattle for many years [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

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Effect of semen collection by transrectal massage of accessory sexual glands or artificial vagina on the outcome of breeding soundness examinations of Italian yearling beef bulls

et al. 2015

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“…Assessment and confirmation by several examinations and evaluation like palpation of testes, per rectal examination and visual for cryptorchidism condition were carried out. The semen ejaculates were collected from the mithuns affected and unaffected through transrectal manual massage method two times in a week (Palmer et al, 2004). The necessary experimental protocols performed was whereby carried out as per the regulations implemented by the Institutional Animal Care and Use Committee.…”

Section: Methodsmentioning

confidence: 99%

Effect of unilateral cryptorchidism on mobility and velocity parameters of sperm in (Bos frontalis) semen

Perumal¹,

Chang²,

CTR³

et al. 2016

JEBAS

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KEYWORDS Mithun CryptorchidComputer assisted sperm analysis Motility Velocity parameters ABSTRACTThe present study was conducted to assess the motility and velocity parameters of sperm of normal intact and unilateral cryptorchid mithun bull by computer assisted sperm analyzer (CASA). Twenty ejaculates were collected from cryptorchid (n=10) and normal intact (n=10) bull. The different parameters assessed through CASA were static sperms (SM), Total Motility (TM), forward progressive motility (FPM), Average Path velocity (VAP), Average beat/cross frequency (BCF), Straightness (STR), Average straight line velocity (VSL), Average curvilinear velocity (VCL), Average amplitude of lateral head displacement (ALH), Wobble (WOB), Linearity (LIN), Elongation (EL). The result showed that these CASA parameters differed significantly (p<0.05) between the intact and cryptorchid mithun bull and intact mithun bull has significantly (p<0.05) higher value than cryptorchid mithun bulls. It was concluded that most of the CASA parameters were significantly lower in cryptorchid bulls than intact bull and however, due to the genetic hereditary nature of cryptorchid, these bulls should not be used for breeding purposes.

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Use of oxytocin and cloprostenol to facilitate semen collection by electroejaculation or transrectal massage in bulls

Cited by 46 publications

References 15 publications

Changes in mean scrotal circumference in performance tested Swedish beef bulls over time

Changes in mean scrotal circumference in performance tested Swedish beef bulls over time

Effect of semen collection by transrectal massage of accessory sexual glands or artificial vagina on the outcome of breeding soundness examinations of Italian yearling beef bulls

Effect of unilateral cryptorchidism on mobility and velocity parameters of sperm in (Bos frontalis) semen

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