A systematic review on the prospects of X- and Y-sexed semen in ruminant livestock: implications for conservation, a South African perspective

Autor: Jabulani Nkululeko Ngcobo, Tshimangadzo Lucky Nedambale, Sindisiwe Mbali Sithole, Bohani Mtileni, Takalani Judas Mpofu, Fhulufhelo Vincent Ramukhithi, Tlou Caswel Chokoe, Khathutshelo Agree Nephawe

Publikováno v: Frontiers in Veterinary Science, Vol 11 (2024)

South Africa is home to numerous indigenous and locally developed sheep (Nguni Pedi, Zulu, and Namaqua Afrikaner, Afrino, Africander, Bezuidenhout Africander, Damara, Dorper, Döhne Merino, Meat Master, South African Merino, South African Mutton Meri

Externí odkaz: https://doaj.org/article/644e771a3c9f4ec58d0a981b15c83fe4

Seasonal Variations in Semen Quality, Testosterone Levels, and Scrotal Size following Dietary Flaxseed Oil and Ascorbic Acid in South African Indigenous Rams

Autor: Jabulani Nkululeko Ngcobo, Tshimangadzo Lucky Nedambale, Takalani Judas Mpofu, Khathutshelo Agree Nephawe, Tlou Caswell Chokoe, Fhulufhelo Vincent Ramukhithi

Publikováno v: Animals, Vol 13, Iss 7, p 1213 (2023)

The purpose of this study was to determine the seasonal variations in semen quality, testosterone levels, and scrotal size, following dietary flaxseed oil and ascorbic acid in South African indigenous rams. A total of 22 South African indigenous rams

Externí odkaz: https://doaj.org/article/65a6ba016280488a98d88d1159e5fa95

Flaxseed Oil as a Source of Omega n-3 Fatty Acids to Improve Semen Quality from Livestock Animals: A Review

Autor: Jabulani Nkululeko Ngcobo, Fhulufhelo Vincent Ramukhithi, Khathutshelo Agree Nephawe, Takalani Judas Mpofu, Tlou Caswell Chokoe, Tshimangadzo Lucky Nedambale

Publikováno v: Animals, Vol 11, Iss 12, p 3395 (2021)

The demand to conserve indigenous species through the cryo-gene bank is increasing. Spermatozoa remain sensitive to cryopreservation damages especially that of avian species thus limiting the use of reproductive biotechnologies such as artificial ins

Externí odkaz: https://doaj.org/article/68267cabf85a475d9364c2f07026d308

Seasonal Variations in Semen Parameters of Zulu Rams Preserved at 10°C for 72 H During Breeding and Non-Breeding Season

Autor: Jabulani Nkululeko Ngcobo, Tshimangadzo Lucky Nedambale, Khathutshelo Agree Nephawe, A. Maqhashu

Publikováno v: American Journal of Animal and Veterinary Sciences. 15:226-239

The study was conducted to evaluate the seasonal variations in semen parameters of Zulu rams preserved at 10°C for 72 h. The study site was the Agricultural Research Council (ARC) Irene, during the breeding season and the non-breeding season. Zulu r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9835775551985fddd342c16a05191c77
https://doi.org/10.3844/ajavsp.2020.226.239

The future survival of African elephants: implications for conservation

Autor: André Chwalibog, Jabulani Nkululeko Ngcobo, Tshimangadzo Lucky Nedambale, Khathutshelo Agree Nephawe, Ewa Sawosz

Publikováno v: Ngcobo, J N, Nedambale, T L, Nephawe, K A, Sawosz, E & Chwalibog, A 2018, ' The future survival of African elephants : implications for conservation ', International Journal of Avian & Wildlife Biology, vol. 3, no. 5, pp. 379‒384 . https://doi.org/10.15406/ijawb.2018.03.00123

In 2007 the elephant population in Africa was estimated at between 470,000 and 690,000. However, this population is rapidly decreasing. Today, African elephants are highly endangered and are listed as ‘vulnerable’ on the International Union for C

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12e4ca63a7ea0baa63e255a431a8bb6a
https://doi.org/10.15406/ijawb.2018.03.00123