Seasonal variation in the semen characteristics of Muturu (Bos brachyceros) bulls

Igboeli, G.; Nwakalor, L. N.; Orji, B. I.; Onuora, G.I.

doi:10.1016/0378-4320(87)90074-1

Cited by 6 publications

(6 citation statements)

References 17 publications

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“…Significant seasonal variation on sperm reserve count observed in this study agreed with what was reported by Igboeli et al, (1987) who reported that in the tropics, the rainy season is associated with conditions well suited to accepted levels of bull sperm output and quality which he said was due to abundance of lush pasture and low temperature. The dry season however is associated with poor quality and quantity of feed, high ambient temperature which influences feed intake; as a result affects bull semen production and quality (Tegegne, et al, 1992a).…”

Section: Resultssupporting

confidence: 91%

Genotype and seasonal variation in testes and paired epididymal sperm production among indigenous bull cattle in Mubi Adamawa State, Nigeria

Addass¹

2011

ABJNA

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Testicular and paired epididymal sperm production as affected by breed and season were studied among the common Nigerian indigenous bull cattle. Rahaji (RJ) bulls recorded the highest sperm production ability followed by Bunaji (BJ), Sokoto gudali (SG) while Adamawa gudali (AG) had the least. The corresponding paired testes sperm reserve (PTSR) values were; 149.91±2.68x10 9 , 134.69±2.48x10 9 , 118.34±2.59x10 9 and 116.82±2.55x10 9 ; for RJ, BJ, SG and AG bulls respective values for right testes sperm reserve (RTSR) were (RJ), 74.72±1.35x10 9 , (BJ), 66.39±1.25x10 9 , (SG), 59.33±1.31x10 9 and (AG), 58.36±1.29x10 9 ; left testes sperm reserve (LTSR) values were74.20±1.75x10 9 , 67.26±1.61x10 9 , 57.82±1.68x10 9 and 58.37±1.66x10 9 ,for RJ, BJ, SG, and AG bulls, while for paired epididymal sperm reserve count (PESR) values were (RJ), 301.15±4.67x10 9 , (BJ), 277.72±4.32x10 9 , (SG), 238.70±4.50x10 9 and (AG), 232.28±4.44x10 9. significant (P<0.05) season difference on sperm production was observed with the early dry (ED) season favouring sperm production best followed by late dry season (LD) late rain (LR) while early rain (ER) was least. Corresponding PTSR values were 138.69±2.69x10 9 , 132.57±2.60x10 9 , 126.70±2.52x10 9 and 121.45±2.49x10 9 ; respective RTRS values were 69.71±1.36x10 9 , 65.94±1.31x10 9 , 63.39±1.27x10 9 and 59.58±1.26x10 9 while PESR values were 275.93±4.68x10 9 , 269.06±4.38x10 9 , 260.09±4.53x10 9 and 243.88±4.34x10 9. Sperm production potential was observed to be highest in RJ bulls and least in AG bulls, while early dry season favours best the production of sperm and bulls in the period of early rain had the least.

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Section: Resultssupporting

confidence: 91%

Genotype and seasonal variation in testes and paired epididymal sperm production among indigenous bull cattle in Mubi Adamawa State, Nigeria

Addass¹

2011

ABJNA

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“…Similar to our finding the highest mass activity during winter season had been reported in Zebu-taurus bulls (Goswami et al 1991) and in zebu-exotic half breds, Whereas Mathur et al (2002) in Frieswal bulls and Helbig et al (2007) in American bison obtained no significant (P<0.05) seasonal variation in mass activity. Significant (P<0.05) seasonal difference was observed in initial motility percent (IM) which is in agreement with the findings of Igboeli et al (1987) in Bos brachyceros and Goswami et al (1991) in Zebu-taurus bulls. On the contrary, Rekwot et al (1987) in Exotic and Crossbred bulls and Mathur et al (2002) in Frieswal bulls did not obtain any significant seasonal variation in IM.…”

Section: Advances In Animal and Veterinary Sciencessupporting

confidence: 80%

“…The ejaculate volume was highest during summer and lowest during winter season. However, Rekwot et al (1987) and Igboeli et al (1987) obtained highest ejaculate volume during rainy season; whereas Goswami et al (1991) found highest semen volume during winter season. No significant (P<0.05) seasonal difference was observed in ejaculate volume which is in agreement with the findings of Tomar et al (1966) in Hariana bulls and Helbig et al (2007) in American bison.…”

Section: Advances In Animal and Veterinary Sciencesmentioning

confidence: 93%

Effect of Season on Semen Quality of Crossbred (Karan Fries) Bulls

Bhakat¹,

Mohanty²,

Gupta³

et al. 2014

Adv. Anim. Vet. Sci.

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| One hundred and fifty six ejaculates from eight Karan Fries (KF) bull were collected to study the effect of season (summer, rainy and winter) on semen quality parameters at Artificial Breeding Research Centre, NDRI, Karnal, India. The data was analysed using least square analysis. Season had no significant effect on ejaculate volume, mass activity, total sperm output and pH of the semen, whereas it had significant (P<0.05) effect on initial motility, non-eosinophilic count and acrosome integrity of sperms as well as highly significant (P<0.01) effect on HOST, sperm concentration, sperm abnormalities and osmolality of semen in KF bulls. The results clearly indicate that during summer season, the highest values of sperm abnormalities, pH and OSMOL and lowest values of IM, SPC, SPCE, LIVE, HOST and AI was observed. During winter season highest magnitude of MA, IM, SPC, SPCE, LIVE, HOST and AI and lowest value of VOL, sperm abnormalities, pH and OSMOL were observed in KF bulls. It was concluded that the semen qualities were optimal during winter, poor during summer and intermediate during rainy

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“…References [10], [13], [14], [15] reported that the percentage of motile sperm was 66.2% -76.0% in the Holstein-Friesian × Zebu bulls and 56.6% -60.1% in Jersey × Zebu bulls. Reference [16] reported that average motility of bovine fresh semen as 63.3% and the range was 50-80%.…”

Section: Figure 2 Graphical Presentation Of Motility Of Semen Of Difmentioning

confidence: 99%

Evaluation of semen for breeding soundness of four different breeds of bull used for artificial insemination

Rahman¹,

Juyena²,

Ahmed³

et al. 2014

IOSRJAVS

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Seasonal variation in the semen characteristics of Muturu (Bos brachyceros) bulls

Cited by 6 publications

References 17 publications

Genotype and seasonal variation in testes and paired epididymal sperm production among indigenous bull cattle in Mubi Adamawa State, Nigeria

Genotype and seasonal variation in testes and paired epididymal sperm production among indigenous bull cattle in Mubi Adamawa State, Nigeria

Effect of Season on Semen Quality of Crossbred (Karan Fries) Bulls

Evaluation of semen for breeding soundness of four different breeds of bull used for artificial insemination

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