Effect of genotype and seasons on semen characteristics of three indigenous cock types in the semi arid zone of Nigeria

Adamu, J.; Dauda, A.; Hy, Abbaya

doi:10.15406/ijawb.2019.04.00158

Cited by 2 publications

(2 citation statements)

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“…In this study, semen volume differed significantly across seasons and genotypes. The findings of Adamu et al (2019) showed a similar result in the case of semen volume. Ameen et al (2014) studied poultry semen in Nigeria and showed the same result.…”

Section: Discussionsupporting

confidence: 76%

“…But environmental influences have little effect on semen (Sonseeda et al, 2013;Bhuiyan et al, 2019). Adamu et al (2019) reported that the color of sperm does not differ significantly between the early dry season, late dry season, and early rainy season, but that all of these seasons were much more intense in color intensity than the late rainy season.…”

Section: Discussionmentioning

confidence: 99%

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Seasonal variation of semen quality among the three genotypes of native chicken

Islam,

Faruque,

Huda

et al. 2024

Ukr. Jour. of Vet. and Agr. Sci.

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The study, conducted at the Bangladesh Livestock Research Institute, aimed to assess semen quality and characteristics in three types of indigenous cocks and explore seasonal variations. Ninety bird samples from three genotypes, namely non-descript Deshi (ND), Hilly (HI), and Naked Neck (NN), were used in this research. A total of 548 semen samples were collected to evaluate the color, volume, consistency, and transparency of semen in different seasons. Semen collection was performed using an abdominal massage technique, and volume was measured with a tuberculin syringe. For determining microscopic physical and morphological characteristics, computer-assisted sperm analysis (CASA) software was used. Results showed that among three types of indigenous cocks, semen quality differed (p < 0.001) from season to season. Semen quality was comparatively good for ND in the autumn season, for HI in the summer season, and for NN in the spring season. The highest semen volume (0.318 ± 0.010 ml) was recorded in the summer season, and the lowest semen volume (0.218 ± 0.008 ml) was recorded in the spring season. Genotype had a significant (p < 0.01) effect on semen volume, and the effect of semen and genotype interaction on semen volume was non-significant (p > 0.05). The sperm concentration was higher in NN compared to ND and HI. The percentages of static, bent tail, coiled tail, DMR, distal droplet, and proximal droplet were comparatively higher in the HI and NN genotypes. The color, consistency, and volume of semen were affected by genotype and season.

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Section: Discussionsupporting

confidence: 76%

Section: Discussionmentioning

confidence: 99%

Seasonal variation of semen quality among the three genotypes of native chicken

Islam,

Faruque,

Huda

et al. 2024

Ukr. Jour. of Vet. and Agr. Sci.

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Physical and Semen Characteristics of Mexican Creole Roosters in Summer and Autumn, at 19° North Latitude with a Constant Photoperiod

Ordaz-Contreras¹,

Sosa-Montes

Pró-Martínez³

et al. 2023

Braz. J. Poult. Sci.

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The objective of this study was to evaluate the effect of the seasons (Summer and Autumn), on live weight, body condition, mass motility, percentage of live spermatozoa, and sperm-cell concentration of Creole roosters (Gallus domesticus) from Mexico. Semen from 35-week-old Creole roosters was collected weekly during 10 weeks in Summer and Autumn, through the dorso-abdominal massage technique. Roosters were individually kept under a constant photoperiod (16 hours light:8 hours dark). The average live weight was 4.5% higher (p<0.05) in Autumn (2.78 kg) than in Summer (2.66 kg), therefore this variable increased with age (r = 0.85, p<0.05). Category 2 of body condition occurred (p<0.05) with higher probability than the others (0, 1 and 3), being practically the same (p>0.05) in Autumn (99.96%) and in Summer (99.81%). On average (and in weeks 1 and 3-10), the percentage of live spermatozoa was higher in Summer than in Autumn. Accordingly, the percentage of live spermatozoa decreased with age (r = -0.82, p<0.05). However, on average, sperm-cell concentration did not change between seasons (p>0.05). In conclusion, Mexican Creole roosters showed higher percentage of live spermatozoa in Summer than in Autumn. Therefore, it is advisable to select these animals of about 2.7 kg and reproduce them in Summer.

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Effect of genotype and seasons on semen characteristics of three indigenous cock types in the semi arid zone of Nigeria

Cited by 2 publications

References 0 publications

Seasonal variation of semen quality among the three genotypes of native chicken

Seasonal variation of semen quality among the three genotypes of native chicken

Physical and Semen Characteristics of Mexican Creole Roosters in Summer and Autumn, at 19° North Latitude with a Constant Photoperiod

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