Assessment of the adaptation of Nguni goats to water stress

Akinmoladun, O.F.; Mpendulo, C.T.; Ayoola, M.O.

doi:10.1016/j.animal.2023.100911

Cited by 2 publications

(3 citation statements)

References 40 publications

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“…South Africa is endowed with numerous indigenous breeds and is capable of developing local breeds to tackle meat demand under harsh environmental conditions ( 7 ). South African indigenous goat breeds include Nguni, SA veld, Tankwa, and Imbuzi ( 9 ).…”

Section: Extinction Status In South African Livestockmentioning

confidence: 99%

“…Goats are kept by rural farmers mainly as a source of income through live sales, meat, and hide production ( 6 ). Akinmoladun et al ( 7 ) found that goats can quickly adapt to water stress and do not lose body weight easily, which extends their survival. On the other hand, sheep are kept as a source of protein, of income, to pay lobola, and used for traditional ceremonies ( 8 ).…”

Section: Introductionmentioning

confidence: 99%

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

Ngcobo,

Nedambale,

Sithole

et al. 2024

Front. Vet. Sci.

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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 Merino, Van Rooy, and Dorper), goat (SA veld, Tankwa, Imbuzi, Bantu, Boer, and Savanna) and cattle (Afrigus, Afrikaner, Bolowana, Bonsmara, Bovelder, Drakensberger, South African Angus, South African Dairy Swiss, South African Friesland, South African Red, and Veld Master) animals. These breeds require less veterinary service, feed, management efforts, provide income to rural and or poor owners. However, most of them are under extinction risks and some with unknown status hence, require immediate conservation intervention. To allow faster genetic progress on the endangered animals, it is important to generate productive animals while reducing wastages and this can be achieved through sex-sorted semen. Therefore, this systematic review is aimed to evaluate the prospects of X and Y-sexed semen in ruminant livestock and some solutions that can be used to address poor sex-sorted semen and its fertility. This review was incorporated through gathering and assessing relevant articles and through the data from the DAD-IS database. The keywords that were used to search articles online were pre-gender selection, indigenous ecotypes, fertility, flow cytometry, artificial insemination, conservation, and improving sexed semen. Following a careful review of all articles, PRISMA guidelines were used to find the articles that are suitable to address the aim of this review. Sex-sorted semen is a recently introduced technology gaining more attention from researchers particularly, in the conservation programs. Preselection of semen based on the sex chromosomes (X- and or Y-bearing chromosomes) is of paramount importance to obtain desired sex of the offspring and avoid animal wastage as much as possible. However, diverse factors can affect quality of semen of different animal species especially after sex-sorting. Flow cytometry is a common method used to select male and female sperm cells and discard dead and abnormal sperm cells during the process. Thus, sperm sexing is a good advanced reproductive technology (ART) however, it is associated with the production of oxidative stress (OS) and DNA fragmentation (SDF). These findings, therefore, necessitates more innovation studies to come up with a sexing technology that will protect sperm cell injuries during sorting in frozen-thawed.

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Section: Extinction Status In South African Livestockmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Ngcobo,

Nedambale,

Sithole

et al. 2024

Front. Vet. Sci.

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“…A variation in climate may also result in livestock water scarcity and low productivity of pastures due to frequent/prolonged drought and reduced rainfall. Water sources dry up while pastures become depleted due to prolonged dry periods and less rainfall [30,31]. However, some studies have shown that goats withstand harsh climatic conditions like high temperatures and drought better than large stock and other small ruminants [20,32,33].…”

Section: Introductionmentioning

confidence: 99%

Associations between Climate Variability and Livestock Production in Botswana: A Vector Autoregression with Exogenous Variables (VARX) Analysis

Matopote,

Joshi

2024

Atmosphere

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The changing climate has a serious bearing on agriculture, particularly livestock production in Botswana. Therefore, studying the relationship between climate and livestock, which at present is largely missing, is necessary for the proper formulation of government policy and interventions. This is critical in promoting the adoption of relevant mitigation strategies by farmers, thereby increasing resilience. The aim of this research is to establish associations between climate variability and livestock production in Botswana at the national level. The paper employs time series data from 1970 to 2020 and the Vector Autoregression with Exogenous Variables (VARX) model for statistical analysis. The trend shows that both cattle and goat populations are decreasing. The VARX model results reveal that cattle and goat populations are negatively associated with increasing maximum temperatures. Cattle respond negatively to increased minimum temperatures as well, while goats tend to respond positively, implying that livestock species react differently to climatic conditions due to their distinct features. The results of the roots of the companion matrix for cattle and goat production meet the stability condition as all the eigenvalues lie inside the unit circle. The study recommends further intervention by the government to deal with increasing temperatures, thereby addressing the dwindling populations of goats and cattle, which have significant contributions to the household economies of smallholders and the national economy, respectively.

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Assessment of the adaptation of Nguni goats to water stress

Cited by 2 publications

References 40 publications

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

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

Associations between Climate Variability and Livestock Production in Botswana: A Vector Autoregression with Exogenous Variables (VARX) Analysis

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