Browsing Animal and Wildlife Sciences by Type "Article"

Browsing Animal and Wildlife Sciences by Type "Article"

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  • Acceptability of chevon from kids, yearling goats and mature does of indigenous South African goats : a case study 
    Simela, Langelihle; Webb, E.C. (Edward Cottington); Bosman, M.J.C. (South African Society for Animal Science, 2008)
    Consumer sensory evaluations of oven-roasted goat and sheep m. longissimus dorsi samples were conducted in two series to determine the acceptability of chevon from indigenous South African goats to consumers. Chevon samples ...
  • Adaptive thermal responses of captive Nile crocodiles (Crocodylus niloticus) in South Africa 
    Viljoen, Devon M.; Webb, E.C. (Edward Cottington); Myburgh, Jan G.; Truter, Johannes Christoff; Lang, Jeffrey W.; Myburgh, Albert (Elsevier, 2023-12)
    The current study assessed the ambient temperatures, and those selected, by captive adult Nile crocodiles on a commercial farm in South Africa. Non-invasive data capture techniques were developed to ensure the crocodiles ...
  • Analysis of inbreeding of the South African Dairy Swiss breed 
    De Ponte Bouwer, Paula; Visser, Carina; Mostert, Bernice Euodia (South African Society for Animal Science, 2013-03-09)
    In South Africa, the Dairy Swiss breed, which originated in Switzerland, consists of 27 breeders and 1135 breeding cows. Pedigree information on the breed was analysed to determine its effective population size (Ne) and ...
  • Analysis of polycerate mutants reveals the evolutionary co-option of HOXD1 for horn patterning in Bovidae 
    Allais-Bonnet, Aurelie; Hintermann, Aurelie; Deloche, Marie-Christine; Cornette, Raphael; Bardou, Philippe; Naval-Sanchez, Marina; Pinton, Alain; Haruda, Ashleigh; Grohs, Cecile; Zakany, Jozsef; Bigi, Daniele; Medugorac, Ivica; Putelat, Olivier; Greyvenstein, Ockert; Hadfield, Tracy; Jemaa, Slim Ben; Bunevski, Gjoko; Menzi, Fiona; Hirter, Nathalie; Paris, Julia M.; Hedges, John; Palhiere, Isabelle; Rupp, Rachel; Lenstra, Johannes A.; Gidney, Louisa; Lesur, Josephine; Schafberg, Renate; Stache, Michael; Wandhammer, Marie-Dominique; Arbogast, Rose-Marie; Guintard, Claude; Blin, Amandine; Boukadiri, Abdelhak; Riviere, Julie; Esquerre, Diane; Donnadieu, Cecile; Danchin-Burge, Coralie; Reich, Coralie M.; Riley, David G.; Van Marle-Koster, Este; Cockett, Noelle; Hayes, Benjamin J.; Drogemuller, Cord; Kijas, James; Pailhoux, Eric; Tosser-Klopp, Gwenola; Duboule, Denis; Capitan, Aurelien (Oxford University Press, 2021-06)
    In the course of evolution, pecorans (i.e., higher ruminants) developed a remarkable diversity of osseous cranial appendages, collectively referred to as “headgear,” which likely share the same origin and genetic basis. ...
  • Annual net primary productivity of different functional groups as affected by different intensities of rainfall reduction in the semiarid grasslands of the Gauteng province in South Africa 
    Magandana, Thabo Patrick; Hassen, Abubeker; Tesfamariam, Eyob Habte (MDPI, 2021-04)
    Rainfall variability is expected to change the soil water regime thereby impacting negatively on rangeland species composition, productivity and ecosystem services. The aim of this study was to assess the impact of ...
  • The antimethanogenic potentials of plant extracts : their yields and phytochemical compositions as affected by extractive solvents 
    Ibrahim, Taofik Adam; Hassen, Abubeker; Apostolides, Zeno (MDPI, 2022-11-29)
    Plant phytochemicals are an important area of study in ruminant nutrition, primarily due to their antimethanogenic potentials. Plant extract yields, their bioactive compounds and antimethanogenic properties are largely ...
  • Antinutrients and metabolomic compounds of Bambara groundnut (Vigna subterranean) as affected by traditional processing by smallholder farmers 
    Pretorius, Beulah; Otto, Margot; Schonfeldt, H.C. (Hettie Carina) (Wiley, 2023-08)
    Bambara groundnut (BG) (Vigna subterranean) is an underutilized, indigenous crop in South Africa that has nutritional and associated health benefits. Decreasing the antinutrients in food sources can potentially increase the ...
  • Antioxidant and antimicrobial properties of selected phytogenics for sustainable poultry production 
    Mnisi, Caven Mguvane; Mlambo, Victor; Gila, Akho; Matabane, Allen N; Mthiyane, Doctor Mziwenkosi Nhlanhla; Kumanda, Cebisa; Manyeula, Freddy; Gajana, Christian S (MDPI, 2023-01)
    The use of antibiotic growth promoters (AGP) in poultry production not only promotes the emergence of pathogenic multi-drug resistant bacteria, but it also compromises product quality, threatens animal and human health, ...
  • Application of artificial neural network for predicting maize production in South Africa 
    Adisa, O.M. (Omolola); Botai, Joel Ongego; Adeola, Abiodun Morakinyo; Hassen, Abubeker; Botai, Christina M.; Darkey, Daniel; Tesfamariam, Eyob Habte (MDPI, 2019-02)
    The use of crop modeling as a decision tool by farmers and other decision-makers in the agricultural sector to improve production efficiency has been on the increase. In this study, artificial neural network (ANN) models ...
  • Application of partial least squares regression to relate tastiness of boiled potatoes to chemical and physical tests 
    Smith, Marie F.; Leighton, Christine S. (Christina Stephanie); Morey, Liesl; Schonfeldt, H.C. (Hettie Carina) (South African Society of Crop Production/ Soil Science Society of South Africa/ South African Weed Science Society/ South African Society for Horticultural Sciences, 2009-01)
    Partial Least Squares regression (PLS) was used to understand the relationship between 15 sensory attributes of potatoes boiled in their skins as dependent variables (Y), and six objective (chemical and physical) measurements ...
  • Assessing nutrient adequacy from the crop contents of free-ranging indigenous chickens in rural villages of the Venda region of South Africa 
    Raphulu, Thomas; Jansen van Rensburg, Christine; Van Ryssen, J.B.J. (South African Society for Animal Science, 2015-05-21)
    The aim of the study was to evaluate the nutritional status of scavenging chickens by assessing the composition of their crop contents. The study was conducted on 288 free-ranging indigenous chickens from six adjacent rural ...
  • Assessing reproductive performance to establish benchmarks for small-holder beef cattle herds in South Africa 
    Nkadimeng, Marble; Van Marle-Koster, Este; Nengovhela, Nkhanedzeni Baldwin; Ramukhithi, Fhulufhelo Vincent; Mphaphathi, Masindi Lotus; Rust, Johannes Matthias; Makgahlela, Mahlako Linah (MDPI, 2022-11-01)
    Smallholder beef cattle farms in South Africa have had low reproductive performance, which has been associated with management practices. Considering current farm management practices, a multi-stage selection study was ...
  • Assessment of acquired immune response to Rhipicephalus appendiculatus tick infestation in different goat breeds 
    Gopalraj, Jeyanthi B.P.; Clarke, Francoise C.; Donkin, Edward Francis (AOSIS Open Journals, 2013-09-02)
    Changes in serum gamma globulin levels, numbers of replete female ticks and engorged tick mass were used as parameters to monitor the acquired immune response (antibody mediated immune response) elicited by Rhipicephalus ...
  • Assessment of genetic variation in Bapedi sheep using microsatellite markers 
    Maqhashu, Ayanda; Mapholi, N.O.; O'Neill, H.A.; Nephawe, K.A.; Ramukhithi, F.V.; Sebei, J.P.; Nxumalo, K.S.; Nedambale, Tshimangadzo Lucky (South African Society for Animal Science, 2020-05-18)
    This study was conducted to assess genetic variation in Bapedi sheep using 14 microsatellite markers. Blood samples were collected from 174 unrelated Bapedi sheep on six farms in various districts of Limpopo and from the ...
  • Automated cow body condition scoring using multiple 3D cameras and convolutional neural networks 
    Summerfield, Gary I.; De Freitas, Allan; Van Marle-Koster, Este; Myburgh, Hermanus Carel (MDPI, 2023-11)
    Body condition scoring is an objective scoring method used to evaluate the health of a cow by determining the amount of subcutaneous fat in a cow. Automated body condition scoring is becoming vital to large commercial dairy ...
  • A basic healthy food basket approach to evaluate the affordability of healthy eating in South Africa and Kenya 
    Vermeulen, Hester; Meyer, Ferdinand; Schonfeldt, H.C. (Hettie Carina) (Frontiers Media, 2023-08-10)
    INTRODUCTION : Understanding the affordability of healthy eating has always been a critical question but has escalated in importance considering the global context of more recent soaring food prices and the worsening of ...
  • Basiese oorsig van vee-genomika 
    Visser, Carina (Plaas Publishing, 2021-04)
    Stoettelers, produsente en veekundiges word deesdae links en regs met die term ‘genomika’ gekonfronteer. Terme soos dié word egter nie aldag goed verstaan nie en dikwels in die verkeerde konteks gebruik. In hierdie ...
  • The beef tenderness model 
    Frylinck, L.; O'Neil, A.; Du Toit, Elsabe; Strydom, P.E. (Phillip Evert); Webb, E.C. (Edward Cottington) (South African Society for Animal Science, 2015-07-29)
    In Phase1 of this study, three breed types (Simmentaler-, Brahman- and Nguni bulls; n = 60 each) were grain-fed and slaughtered at 12 months of age (A-age, fat-class 2). Feed was withdrawn for either three hours or 24 hours ...
  • The broad-based eco-economic impact of beef and dairy production : a global review 
    Meissner, H.H.; Blignaut, J.N.; Smith, H.J.; Du Toit, Cornelius Jacobus Lindeque (South African Society for Animal Science, 2023-05-19)
    Cattle have been the focus of an intense debate between those concerned about, among other things, the possible negative effects on global warming, land degradation, food competition, and human health and those who are ...
  • Bromide : a potential risk to livestock production in South Africa 
    Casey, Norman Henry; Lucht, Heike Luise; Reijnders, B. (South African Society for Animal Science, 2019)
    Bromide (Br-) concentrations (mg/L) in groundwater range from no observed adverse effect levels (NOAEL), which is considered safe, and increase to constituent of concern (COC) when the concentrations approach the recommended ...