Journal article
Identification of a sperm cell attribute responsible for subfertility of roosters homozygous for the rose comb allele
Biology of reproduction, Vol.54(1), pp.168-172
01/1996
Handle:
https://hdl.handle.net/2376/118289
PMID: 8838014
Abstract
Fertility, sperm metabolism, sperm filling of oviductal sperm storage tubules (SST), and sperm motility were compared in subfertile roosters homozygous for the rose comb allele (R/R) and fertile controls (r/r or R/r males). As expected, fertility of R/R males was less than that of controls (p < 0.0001). The metabolic rate of spermatozoa from R/R males was also lower than that of controls (p < 0.05). Likewise, filling of SST in vivo was lower (p < 0.0001) for spermatozoa from R/R males than for control spermatozoa. However, in vitro filling of SST was not different between genotypes (p > 0.05). Motility of spermatozoa from R/R males was less than that of controls (p < 0.001) as determined by an objective spectrophotometric assay. Previous researchers have concluded that subfertility associated with homozygosity for the rose comb allele is attributable to a sperm-specific phenomenon. However, the cellular mechanism(s) responsible for the subfertile status were not defined. In contrast to previous researchers, we have demonstrated that subfertility of R/R males is explicable in terms of reduced sperm transport through the hen's vagina; reduced sperm motility appears to be the major contributing factor.
Metrics
12 Record Views
Details
- Title
- Identification of a sperm cell attribute responsible for subfertility of roosters homozygous for the rose comb allele
- Creators
- D J McLean - Department of Animal Sciences, Oregon State University, Corvallis 97331, USAD P Froman
- Publication Details
- Biology of reproduction, Vol.54(1), pp.168-172
- Academic Unit
- Center for Reproductive Biology
- Publisher
- United States
- Identifiers
- 99900548299701842
- Language
- English
- Resource Type
- Journal article