Turkey hen fertility and egg production after artificial insemination and multiple oviduct eversion during the pre-laying period

Bakst, M. R.

doi:10.1530/jrf.0.0830873

Cited by 8 publications

(2 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Under current conditions a mean fertility in excess of 90% for 5 consecutive weeks has been obtained after hens were inseminated once with a total of 150 X 10 6 spermatozoa within two weeks after the onset of photostimulation (Bakst, 1988a). Such data demonstrate that biological 'potential' exists for long intervals between inseminations after insemination with relatively low spermatozoal numbers.…”

Section: Discussionmentioning

confidence: 81%

Oviducal storage of spermatozoa in the turkey: Its relevance to artificial insemination technology

1989

British Poultry Science

Self Cite

View full text Add to dashboard Cite

1. This paper addresses questions concerning the role of oviducal sperm selection and storage in the relative inefficiency of turkey reproduction. 2. Before the onset of egg production, the turkey has the biological potential to store spermatozoa in its oviduct for periods up to 5 weeks; after the onset of production fewer spermatozoa are retained by the oviduct. 3. A better understanding of the biological mechanisms which regulate sperm selection and storage in the turkey oviduct is necessary to make significant advances in artificial insemination technology.

show abstract

Section: Discussionmentioning

confidence: 81%

Oviducal storage of spermatozoa in the turkey: Its relevance to artificial insemination technology

1989

British Poultry Science

Self Cite

View full text Add to dashboard Cite

show abstract

“…Hens reach peak production at around 6-8 weeks of lay, then fertility starts to gradually decline. Previous attempts to enhance fertility through increased insemination frequency and varying sperm insemination quantities have yielded minimal improvements (Bakst, 1988). The decline in fertility observed in avian species can be attributed to various factors, including hormonal imbalances, disease and immune-related factors, environmental influences, the timing of insemination, and the selection of sperm within the vaginal tract (Assersohn et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Prolonged repeated inseminations trigger a local immune response and accelerate aging of the uterovaginal junction in turkey hens

Kosonsiriluk,

Reed,

Noll

et al. 2023

Front. Physiol.

View full text Add to dashboard Cite

Artificial insemination is a standard practice in the turkey breeder industry to ensure the production of fertile eggs. Even though hens are inseminated on a weekly basis, their fertility tends to decline after a few weeks of production. Avian species have a specialized structures called sperm storage tubules (SSTs), located in the uterovaginal junction (UVJ) of the oviduct. The ability of SSTs to store sperm is directly correlated with the fertility of the hen. The objective of the study was to examine changes in the transcriptome of the turkey hen’s UVJ in response to the presence of sperm at three key stages of production. We hypothesized that repeated and prolonged exposure to sperm would alter the transcriptome of the UVJ. Samples were collected from virgin hens prior to the onset of lay, as well as from sham-inseminated (extender only) and semen-inseminated hens at early lay, peak lay, and late lay. Gene expression profiling of the UVJ was examined, and a differential expression analysis was conducted through pairwise comparisons between semen- and sham-inseminated groups at each production stage and across production stages. In the early laying stage, no significant gene expression changes were found between semen- and sham-inseminated groups. However, at peak lay, genes related to lipid biosynthesis, Wnt signaling, cell proliferation, and O-glycan biosynthesis were upregulated in the semen group, while the immune response and cytokine-cytokine receptor interaction were downregulated. In the late lay stage, the transcription pathway was upregulated in the semen group, whereas the translation pathway was downregulated. The local immune response that was suppressed during peak lay was increased at the late laying stage. In the semen-inseminated group, the UVJ exhibited advanced aging at the late laying stage, evidenced by reduced telomere maintenance and translation processes. The results from this study provide valuable insights into the alteration of the UVJ function in response to the presence of sperm at different stages of production and throughout the production cycle. Targeting the modulation of local immune response and addressing aging processes after peak production could potentially prevent or delay the decline in fertility of turkey breeder hens.

show abstract

Successful use of artificial insemination in the production of red-legged partridges (Alectoris rufa)

Abouelezz¹,

Castaño²,

Toledano-Dı́az³

et al. 2015

Eur J Wildl Res

View full text Add to dashboard Cite

Turkey hen fertility and egg production after artificial insemination and multiple oviduct eversion during the pre-laying period

Cited by 8 publications

References 10 publications

Oviducal storage of spermatozoa in the turkey: Its relevance to artificial insemination technology

Oviducal storage of spermatozoa in the turkey: Its relevance to artificial insemination technology

Prolonged repeated inseminations trigger a local immune response and accelerate aging of the uterovaginal junction in turkey hens

Successful use of artificial insemination in the production of red-legged partridges (Alectoris rufa)

Contact Info

Product

Resources

About