Increased number of large non-atretic follicles and codominance effects account for high litter sizes in Bonga sheep.

Autor: Dolebo, Asrat Tera¹, Melesse, Aberra¹, Porcu, Cristian², Getachew, Tesfaye³, Haile, Aynalem³, Rouatbi, Mariem⁴ rouatbi.myriam@yahoo.fr, Abate, Zelalem⁵, Zeleke, Muluken⁵, Rischkowsky, Barbara³, Mwacharo, Joram M.³, Rekik, Mourad⁶

Publikováno v: Animal Science Journal. Jan-Dec2020, Vol. 91 Issue 1, p1-7. 7p.

Influence of breed on motility and motion characteristics of fresh, chilled and frozen bull spermatozoa

Autor: Alemayehu Lemma, Asrat Tera, Kefelegn Seyoum

Publikováno v: International Journal of Livestock Production. 12:37-42

At present, frozen-thawed semen is used extensively for artificial insemination (AI) in Ethiopia. However, subjective semen quality assessment is still practiced by the semen processing organizations of the country. In this study, motility and motion

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9366d2b3b5298a924d481c82adae6ef7
https://doi.org/10.5897/ijlp2020.0700

Genome-wide scans identify known and novel regions associated with prolificacy and reproduction traits in a sub-Saharan African indigenous sheep (Ovis aries)

Autor: Joram M. Mwacharo, Mourad Rekik, Barbara Rischkowsky, David Wragg, Negar Khayatzadeh, Asrat Tera Dolebo, Aberra Melesse, Max F. Rothschild, Aynalem Haile

Publikováno v: Mammalian Genome
Dolebo, A, Khayatzadeh, N, Melesse, A, Wragg, D, Rekik, M, Haile, A, Rischkowsky, B, Rothschild, M F & Mwacharo, J M 2019, ' Genome-wide scans identify known and novel regions associated with prolificacy and reproduction traits in a sub-Saharan African indigenous sheep (Ovis aries) ', Mammalian Genome, vol. 30, no. 11-12, pp. 339-352 . https://doi.org/10.1007/s00335-019-09820-5

Maximizing the number of offspring born per female is a key functionality trait in commercial- and/or subsistence-oriented livestock enterprises. Although the number of offspring born is closely associated with female fertility and reproductive succe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::01bd23c0f2614b7a398528149b9a7843
http://europepmc.org/articles/PMC6884434

Estimates of genetic parameters and trends for reproduction traits in Bonga sheep, Ethiopia

Autor: Barbara Rischkowsky, Joram M. Mwacharo, Aynalem Haile, Mourad Rekik, Tesfaye Getachew, Asrat Tera, Zelalem Abate, Aberra Melesse

Publikováno v: Tropical animal health and production. 53(1)

Investigation was carried out to assess the effects of environmental factors and to estimate genetic parameters and trends for reproductive traits in Bonga sheep, Ethiopia. Animals used in this study were managed by two communities involved in a comm

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a235d403a625ae736c1f6fef1c65cb3b
https://pubmed.ncbi.nlm.nih.gov/33231745

Increased number of large non-atretic follicles and co-dominance effects account for high litter sizes in Bonga sheep

Autor: Aberra Melesse, Muluken Zeleke, Cristian Porcu, Aynalem Haile, Zelalem Abate, Joram M. Mwacharo, Tesfaye Getachew, Mariem Rouatbi, Mourad Rekik, Asrat Tera Dolebo, Barbara Rischkowsky

Publikováno v: Animal science journal = Nihon chikusan GakkaihoREFERENCES. 91(1)

To understand the ovarian basis for prolificacy of Bonga sheep, a total of 31 ewes were selected based on litter size (LS) records and divided into two groups: High Prolificacy (HP) (n = 20) with LS ≥ 2 and Low Prolificacy (LP) (n = 11) with LS = 1

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::227d63a72f7ef26e8f54c2fac6ab0675
https://pubmed.ncbi.nlm.nih.gov/32462805