• 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, G.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; 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 ...
• Steps of spermiogenesis in the ostrich (Struthio camelus) 

  Soley, John Thomson; Du Plessis, Lizette; Sutovsky, M.; Sutovsky, P. (Springer, 2023-10)

  Few studies describe the sequence of morphological events that characterize spermiogenesis in birds. In this paper, the clearly observable steps of spermiogenesis are described and illustrated for the first time in a ...
• Reliability of the enterprise point-of-care (EPOC) blood analyzer's calculated arterial oxygen-hemoglobin saturation in immobilized white rhinoceroses (Ceratotherium simum) 

  Mtetwa, Thembeka Kim; Snelling, Edward P.; Donaldson, Ashleigh C.; Buss, Peter Erik; Meyer, Leith Carl Rodney (Wiley, 2023-09)

  CONCLUSIONS: The EPOC cSaO2 is unreliable and should not be used to monitor blood oxygenation in immobilized white rhinoceroses.
• Effect of di(n- butyl) phthalate on the blood–testis barrier during puberty onset 

  Molele, Reneilwe A.; Zakariah, Musa; Ibrahim, M.I.A.; Mahdy, Mohamed A. A.; Brown, Geoffrey; Fosgate, Geoffrey Theodore; Brown, Geoffrey James (Wiley, 2023-05)

  Di(n-butyl) phthalate (DBP) is considered a substance of serious concern because of its reproductive toxicity and endocrine-disrupting properties. Exposure to DBP causes morphological and functional changes in the male ...
• Effects of probiotic (Saccharomyces cerevisiae) and ascorbic acid on oxidative gene damage biomarker, heat shock protein 70 and interleukin 10 in broiler chickens exposed to heat stress 

  Sumanu, Victory Osirimade; Byaruhanga, Charles; Bosman, Anna-Mari; Ochai, Sunday Ochonu; Naidoo, Vinny; Oosthuizen, Marinda; Chamunorwa, Joseph P. (Elsevier, 2023-06-28)

  Heat stress is a prominent factor responsible for losses economically in poultry meat industry due to adverse effects on the general performance of broiler chickens. In this study, we evaluated the effects of probiotic ...
• The graviportal spine : epaxial muscles of the African savanna elephant (Loxodonta africana) 

  Birgfellner, Caroline Maria Victoria; Soley, John Thomson; Polsterer, Eva; Forstenpointner, Gerhard; Weissengruber, Gerald Erwin (Wiley, 2023-03)

  In this study, we present not only a new and detailed anatomical description of the epaxial muscles and adjacent ligamentous and fascial structures in the African sa-vanna elephant but also a ...
• Junctional complexes of the blood-testis barrier in the Japanese quail (Coturnix Coturnix japonica) 

  Molele, Reneilwe A.; Ibrahim, Mohammed I.A.; Zakariah, Musa; Mahdy, Mohammed A.A.; Clift, Sarah J.; Fosgate, Geoffrey Theodore; Brown, Geoffrey James (Elsevier, 2022-10)

  This study investigated the developmental changes in the adherens junctions, gap junctions, as well as tight junctions forming the blood-testis barrier (BTB) in Japanese quail (Coturnix Coturnix japonica) testis. Testicular ...
• Nemaline myopathy in a six-month-old pomeranian dog 

  Bester, Elizabeth G.; Kitshoff, Adriaan Mynhardt; Botha, W.J.; Van Wilpe, Erna; Du Plessis, Lizette; Williams, J.H. (June Heather) (Medpharm Publications, 2022)

  Nemaline myopathy - a clinically and genetically complex heterogenous group of disorders - is described uncommonly in humans and rarely in animals, and is characterised by progressive muscle weakness. The diagnosis is ...
• Adverse effects of heat stress during summer on broiler chickens production and antioxidant mitigating effects 

  Sumanu, Victory Osirimade; Naidoo, Vinny; Oosthuizen, Marinda; Chamunorwa, Joseph Panashe (Springer, 2022-12)

  Broiler chicken meat is a good source of protein consumed universally, and is one of the most commonly farmed species in world. In addition to providing food, poultry non-edible byproducts also have value. A major advantage ...
• Relationship between capillaries, mitochondria and maximum power of the heart : a meta-study from shrew to elephant 

  Horrell, Heidi D.; Lindeque, Anika; Farrell, Anthony P.; Seymour, Roger S.; White, Craig R.; Kruger, Kayla M.; Snelling, Edward P. (Royal Society, 2022-02)

  Please read abstract in the article.
• Spermiogenesis in the cattle egret (Bubulcus ibis) 

  Roopnarine, Narindra H.; Gupta, Sunil K.; Du Plessis, Lizette; Aire, Tom A. (Elsevier, 2021-02)

  Avian species comprise more than half of all vertebrates yet there is a dearth of information regarding spermatid development in this class of animals. This report of spermiogenesis in the cattle egret, Bubulcus ibis, is ...
• Effects of an anti-gonadoliberin releasing hormone vaccine on testicular, epididymal and spermatogenic development in the horse 

  Botha, Alma Ester; Schulman, M.L. (Martin); Birrell, John R.; Du Plessis, Lizette; Laver, Pete N.; Soley, John Thomson; Colenbrander, Ben; Bertschinger, H.J. (Hendrik Jan) (Wiley, 2022-08)

  The effects of the GnRH vaccine Improvac® on testicular and epididymal morphometrics, histology and spermatogenesis were measured in 19 young (15–20 months) colts randomly assigned to one control (saline, castration at 57 ...
• Diclofenac toxicity in susceptible bird species results from a combination of reduced glomerular filtration and plasma flow with subsequent renal tubular necrosis 

  Nethathe, Bono; Chipangura, John; Hassan, Ibrahim Zubairu; Duncan, Neil; Adawaren, Emmanuel Oluwasegun; Havenga, Lauren (PeerJ, 2021-08-23)

  Diclofenac caused the death of millions of vultures on the Asian subcontinent. Other non-steroidal anti-inflammatory drugs (NSAIDs) have since also been shown to be toxic to vultures with the exception of meloxicam. For ...

View more