• Mitigating the negative effects of heat stress in broiler chickens using Saccharomyces cerevisiae and ascorbic acid 

  Sumanu, Victory Osirimade (University of Pretoria, 2024-04)

  The production of broiler chickens is often affected by fluctuating environmental conditions leading to loses economically during the hot summer season globally. This has resulted in calls to evaluate the non-ventilating ...
• 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)

  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 ...
• Correlation of cloacal gland histomorphology, ultrastructure and androgen receptor expression with testosterone levels during sexual maturation in the Japanese quail (Coturnix coturnix japonica) 

  Gunuza, Siyamamkela Zikhona (University of Pretoria, 2020)

  The cloacal gland of the Japanese quail is an enlarged glandular protuberance, found on the dorsal wall of the cloaca. The gland is unique to the genus Coturnix and is present in both male and female quails, but only ...
• Reproductive physiology of the female African lion (Panthera Leo), and development of artificial insemination protocols 

  Callealta Rodríguez, Isabel (University of Pretoria, 2019)

  At present, most felid species are listed as Vulnerable or Endangered by the International Union for the Conservation of Nature (IUCN). Assisted reproduction techniques (ART), such as artificial insemination (AI), are ...
• Changes in the testicular capsule and peritubular boundary tissue in pre-pubertal, pubertal and adult Japanese quails (Coturnix Coturnix Japonica) 

  Khumalo, Lindokuhle Innocent (University of Pretoria, 2020)

  The aim of this study was to investigate age-related changes in the morphology of the peritubular boundary tissue and the testicular capsule of pre-pubertal, pubertal, and adult Japanese quails. The peritubular boundary ...
• 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 ...
• Age related changes in apoptosis of germ cells in normal and dibutyl phthalate-treated testes of Japanese quail (Coturnix coturnix japonica) 

  Zakariah, Musa (University of Pretoria, 2021-03)

  Excess germ cells in normal and in pathological conditions are removed from testicular tissue by the mechanism of apoptosis. Studies on germ cell apoptosis in avian species are grossly lacking, and there are only a few ...
• 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, ...
• The ultrastructural features of the infundibulum of the green iguana, Iguana iguana 

  Harrylal, Crissy-Ann; Lensink, Antonia Vergina; Gupta, Sunil K.; Aire, Tom A. (Wiley, 2023-11)

  The purpose of this study is to describe, in detail, the ultrastructure of the infundibulum of the sexually mature and active female green iguana, Iguana iguana. The infundibulum of five iguanas was remarkably distinct ...
• A technical report on the potential effects of heat stress on antioxidant enzymes activities, performance and small intestinal morphology in broiler chickens administered probiotic and ascorbic acid during the hot summer season 

  Sumanu, Victory Osirimade; Naidoo, Vinny; Oosthuizen, Marinda C.; Chamunorwa, Joseph Panashe (MDPI, 2023-11)

  Thermal stress is an environmental factor that negatively affects poultry production globally. It elicits behavioural and physiological changes in broiler chickens, hence the need to find ways of ameliorating its detrimental ...
• Blood flow rate to the femur of extinct kangaroos implies a higher locomotor intensity compared to living hopping macropods 

  Hu, Qiaohui; Seymour, Roger S.; Snelling, Edward P.; Wells, Rod T. (Springer, 2024-01)

  The stocky skeletons and post-cranial anatomy of many extinct kangaroos indicate that they might have engaged in varied locomotor behaviors, rather than bipedal hopping, as their primary mode of locomotion. This study ...
• Scaling of ear morphology across 127 bird species and its implications for hearing performance 

  Zeyl, Jeffrey N.; Snelling, Edward P.; Clusella-Trullas, Susana; Joo, Rocio (Elsevier, 2023-02)

  The dimensions of auditory structures among animals of varying body size can have implications for hearing performance. Larger animals often have a hearing range focused on lower frequencies than smaller animals, which may ...

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