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Fertility and Insemination Characteristics of Sperm Storage Tubules in Old Thai-Native Hens.

Authors :
Kheawkanha T
Chankitisakul V
Pimprasert M
Boonkum W
Vongpralub T
Source :
Animals : an open access journal from MDPI [Animals (Basel)] 2024 Feb 23; Vol. 14 (5). Date of Electronic Publication: 2024 Feb 23.
Publication Year :
2024

Abstract

We aimed to evaluate the effects of sperm concentration (150-250 × 10 <superscript>6</superscript> spz/dose) and insemination frequency (once, twice, and thrice weekly) on fertility and sperm storage tubule (SST) characteristics. The SSTs were classified into five categories: namely, SSTs having an unscorable (SST1), empty (SST2), low (SST3), medium (SST4), and high (SST5) sperm count after insemination. The results showed that only insemination frequency affected the fertility rate ( p < 0.05). The highest fertility was found in the thrice-weekly insemination group; however, this rate was not significantly different from that for the twice-weekly insemination group, except on day 7, while the once-weekly insemination group showed the lowest fertility rate ( p < 0.05) from day four onward. On day 1, the SST characteristics showed no differences among the various insemination frequencies. On day 4, the SST2 and SST3 categories increased in the once-weekly insemination group ( p < 0.05), while the SST4 and SST5 categories decreased compared to the twice- and thrice-weekly insemination groups ( p < 0.05). On day 7, only the thrice-weekly insemination group maintained a level of SST5 category tubules like that measured on day 1 ( p > 0.05). In summary, the insemination dose of 150 × 10 <superscript>6</superscript> sperm was enough for fertilization, and thrice-weekly insemination was the appropriate frequency in old Thai native hens for maintaining a high sperm density in the SSTs throughout the week.

Details

Language :
English
ISSN :
2076-2615
Volume :
14
Issue :
5
Database :
MEDLINE
Journal :
Animals : an open access journal from MDPI
Publication Type :
Academic Journal
Accession number :
38473079
Full Text :
https://doi.org/10.3390/ani14050694