• The hearts of large mammals generate higher pressures, are less efficient and use more energy than those of small mammals 

  Snelling, Edward P.; Seymour, Roger S. (Company of Biologists, 2024-10)

  A prevailing assumption in the cardiovascular field is that the metabolic rate of the heart is a constant proportion of a mammal’s whole-body aerobic metabolic rate. In this Commentary, we assemble previously published ...
• Measurement of microclimates in a warming world : problems and solutions 

  Mitchell, Duncan; Maloney, Shane K.; Snelling, Edward P.; Fonseca, Vinı́cius de França Carvalho; Fuller, Andrea (Company of Biologists, 2024-07)

  As the world warms, it will be tempting to relate the biological responses of terrestrial animals to air temperature. But air temperature typically plays a lesser role in the heat exchange of those animals than does ...
• Genetic characterization of diagnostic epitopes of cardiac troponin I in African rhinoceros 

  Rautenbach, Yolandi; Parsons, Sven David Charles; Loots, Angelika Katrin; Goddard, Amelia; Meyer, Leith Carl Rodney; Buss, Peter Erik; Hooijberg, Emma Henriette (Sage, 2025-03)

  African rhinoceros undergo chemical immobilization and prolonged transport during translocations for conservation purposes and, hence, experience several pathophysiologic changes, including skeletal muscle injury. Potential ...
• Ultrastructural changes in cardiac and skeletal myoblasts following in vitro exposure to monensin, salinomycin, and lasalocid. 

  Henn, Danielle; LensinkI, Antonia V.; Botha, C.J. (Christoffel Jacobus) (Public Library of Science, 2024-09-25)

  Carboxylic ionophores are polyether antibiotics used in production animals as feed additives, with a wide range of benefits. However, ionophore toxicosis often occurs as a result of food mixing errors or extra-label use ...
• Evaluating the efficacy of probiotics and ascorbic acid as anti-stress agents against heat stress in broiler chickens 

  Sumanu, Victory Osirimade; Naidoo, Vinny; Oosthuizen, Marinda; Chamunorwa, Joseph Panashe (Frontiers Media, 2024-10)

  Heat stress poses a substantial challenge to poultry production worldwide, highlighting the urgent need for effective management strategies. This study investigated the efficacy of probiotics (Saccharomyces cerevisiae) ...
• An epidemiological study of canine lymphoma in South Africa 

  Harris, Sybrand Ben; Hooijberg, Emma Henriette; Clift, Sarah Jane; Fosgate, Geoffrey Theodore; Du Plessis, E.C.; Rautenbach, Yolandi (Medpharm Publications, 2024-10)

  Breed, age, and sex predispositions for canine lymphoma have been reported for various geographical locations. However, epidemiological information concerning canine lymphoma in South Africa is scarce. The aim of the ...
• Pulmonary adenocarcinoma with cutaneous metastasis in a dog 

  Greyling, Anita; Van der Weyden, Louise; Lensink, Antonia Vergina; O'Dell, Nicolize (MDPI, 2024-07-11)

  Primary lung cancer is rare in dogs and depending on the tumour stage and subtype, the prognosis can be poor. In this report, we describe a 10 year-old female intact Yorkshire terrier that presented progressive weight ...
• Indigofera cryptantha-induced pigmenturia in cattle in South Africa 

  Botha, C.J. (Christoffel Jacobus); Vosser, Magdaleen; Ibrahim, M.I.A.; Du Plessis, Elizabeth; Lensink, Antonia Vergina; Rudolph, Wiehan; Invernizzi, Luke (Elsevier, 2024-05)

  Two field cases of reddish-black pigmenturia occurred where cattle grazed on an established Cenchrus ciliaris (blue buffalo grass) pasture in South Africa. The pasture was noticeably invaded by Indigofera cryptantha, ...
• The macroscopical anatomy of the lungs and thorax of the African lion (Panthera leo) 

  Marais, Carmen Alicia; Crole, Martina Rachel (Wiley, 2024-10)

  The left and right lungs extend from the second rib to the 13th, while only a small portion is present cranial to the 4th rib. The basal border of the left lung extends horizontally from the second costochondral junction ...
• Reliability, clinical performance and trending ability of a pulse oximeter and pulse co-oximeter, in monitoring blood oxygenation, at two measurement sites, in immobilised white rhinoceros (Ceratotherium simum) 

  Mtetwa, Thembeka Kim; Snelling, Edward P.; Buss, Peter Erik; Donaldson, Ashleigh C.; Roug, Annette; Meyer, L.C.R. (Leith Carl Rodney) (BMC, 2024-07)

  BACKGROUND: Monitoring blood oxygenation is essential in immobilised rhinoceros, which are susceptible to opioid induced hypoxaemia. This study assessed the reliability, clinical performance and trending ability of the ...
• Identifying potential measures of stress and disturbance during a captive to wild African elephant reintegration 

  Pretorius, Yolanda; Eggeling, Tamara; Ganswindt, Andre (Public Library of Science, 2023-10-03)

  There is increasing evidence of compromised welfare for elephants managed in captivity. Should such facilities eventually close, more elephants will need to be rehabilitated and reintegrated into the wild. The goal of ...
• Subdiagnostic Cushing's syndrome in a Labrador retriever diagnosed with progesterone-secreting adrenocortical neoplasia and late liver metastasis 

  Celliers, Anri; Pazzi, Paolo; Mitchell, Emily P.; Lensink, Antionette; Raseasala, Nonkululeko (Wiley, 2024-12)

  A 5-year-old, neutered male Labrador retriever was presented for poor hair regrowth following clipping, lethargy, exercise intolerance, polyphagia, polydipsia, polyuria and heat-seeking behaviour. A bradyarrhythmia due to ...
• Structural gonadal lesions observed in Japanese quail (Coturnix coturnix japonica) following exposure during puberty to the neonicotinoid pesticide, imidacloprid 

  Ibrahim, M.I.A.; Lensink, Antonia Vergina; Phaswane, Rephima M.; Botha, C.J. (Christoffel Jacobus) (Elsevier, 2024-08)

  Exposure to the neonicotinoid insecticide, imidacloprid (IMI), causes reproductive toxicity in mammals and reptiles. However, reports on the effects of IMI on the gonads in birds are grossly lacking. Therefore, this study ...
• Blood flow rates to leg bones of extinct birds indicate high levels of cursorial locomotion 

  Hu, Qiaohui; Miller, Case Vincent; Snelling, Edward P.; Seymour, Roger S. (Cambridge University Press, 2023-11)

  Foramina of bones are beginning to yield more information about metabolic rates and activity levels of living and extinct species. This study investigates the relationship between estimated blood flow rate to the femur ...
• The gross reproductive morphology of the male Temminck's pangolin Smutsia temminckii (Smuts, 1832) 

  Tink, Lauren Nicole; Jansen, Raymond; Steyn, Christine (Wiley, 2024-07)

  The Temminck's pangolin (Smutsia temminckii) is one of eight pangolin species worldwide and the only pangolin present in southern Africa. Historically, pangolins have not been able to reproduce successfully in captivity ...
• Changes in testicular histomorphometry and ultrastructure of Leydig cells in adult male Japanese quail exposed to di (n-butyl) phthalate (DBP) during the prepubertal period 

  Bello, Umar M.; Madekurozwa, Mary-Catherine; Groenewald, Hermanus B.; Arukwe, Augustine; Aire, Tom A. (Springer, 2023-04)

  Phthalate esters, such as di(n-butyl) phthalate, (DBP), are synthetic chemical pollutants commonly used as plasticizers in the manufacture of plastics. In the present study, we investigated the effects of DBP in the testes ...
• Regionally endothermic traits in planktivorous basking sharks Cetorhinus maximus 

  Dolton, Haley R.; Jackson, Andrew L.; Deaville, Robert; Hall, Jackie; McManus, Gavin; Perkins, Matthew W.; Rolfe, Rebecca A.; Snelling, Edward P.; Houghton, Jonathan D.R.; Sims, David W.; Payne, Nicholas L. (Inter-Research Science Publisher, 2023-07-20)

  Few fast-swimming apex fishes are classified as ‘regional endotherms’, having evolved a relatively uncommon suite of traits (e.g. elevated body temperatures, centralised red muscle, and thick-walled hearts) thought to ...
• The structure of the eggshell and eggshell membranes of Crocodylus niloticus 

  Lensink, Antonia Vergina; Swan, Gerry E.; Myburgh, Jan G. (Wiley, 2023-04)

  The macro- and microstructure, elemental composition, and crystallographic characteristics of the eggshell and eggshell membranes of the Crocodylus niloticus eggwas investigated using optical and electron microscopy, ...
• Chicken plastination : its role in teaching avian anatomy 

  Olivier, Wilma; Adds, Philip (International Society for Plastination, 2023-10-14)

  This paper describes the preparation of six plastinated chicken dissections for Veterinary Anatomy teaching at the University of Pretoria, South Africa. Specimens were fixed in 10%formalin for seven to ten days, depending ...
• Centralized red muscle in Odontaspis ferox and the prevalence of regional endothermy in sharks 

  Dolton, Haley R.; Snelling, Edward P.; Deaville, Robert; Jackson, Andrew L.; Perkins, Matthew W.; Bortoluzzi, Jenny R.; Purves, Kevin; Curnick, David J.; Pimiento, Catalina; Payne, Nicholas L. (Royal Society, 2023-11)

  The order Lamniformes contains charismatic species such as the white shark Carcharodon carcharias and extinct megatooth shark Otodus megalodon, and is of particular interest given their influence on marine ecosystems, ...

View more