Faculty of Agriculture & Veterinary Medicine (FAg / FVM): Recent submissions
Now showing items 4621-4640 of 5481
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The mechanism of intracardiac shunting in the lizard Varanus exanthematicus.
(Department of Veterinary Anatomy and Physiology, University of Nairobi, 1983-07)Intracardiac shunting was studied in unanaesthetized and unrestrained specimens of Varanus exanthematicus by simultaneous injection of radioactively labelled microspheres (15 micron) into the right and left atria. Lung ... -
The design and the role of the nasal passages in temperature regulation in the dik-dik antelope (Rhynchotragus kirkii) with observations on the carotid rete.
(Department of Veterinary Anatomy and Physiology, University of Nairobi, 1984-05)xhaled air temperatures (Tex) and rectal temperatures (Trec) were measured in five dik-dik antelopes under controlled environmental temperatures (Ta) between 15 and 40 degrees C. In addition morphometric analysis of the ... -
Function of the lower intestine and osmoregulation in the ostrich: preliminary anatomical and physiological observations.
(Department of Veterinary Anatomy and Physiology, University of Nairobi, 1984-10)The gross anatomy of the lower intestine of the African ostrich (Struthio camelus) was investigated in four adult birds shot in the wild. The presence of 80 cm long paired caeca, and approximately 10 m of colon between ... -
Thermoregulation and heat balance in the dik-dik antelope (Rhynchotragus kirki): a field and laboratory study.
(Elsevier Science LtdDepartment of Veterinary Anatomy and Physiology, University of Nairobi, 1985)xperiments were conducted in the field to study the physiological responses of dik-dik antelope to direct solar radiation and shade. The results were compared to those obtained in the laboratory. The rates of metabolic ... -
Energetic cost of carrying loads: have African women discovered an economic way?
(Nature Publishing GroupDepartment of Veterinary Anatomy and Physiology, University of Nairobi, 1986-02)When travelling in East Africa one is often surprised at the prodigious loads carried by the women of the area. It is not uncommon to see women of the Luo tribe carrying loads equivalent to 70% of their body mass balanced ... -
Studies on renal excretion of potassium in the dik-dik antelope.
(Elsevier Science LtdDepartment of Veterinary Anatomy and Physiology, University of Nairobi, 1988)1. In a study on the renal handling of potassium by the dik-dik antelope, plasma and urine samples were analysed for potassium, sodium and creatinine concentrations and osmolality during dehydration and intra-ruminal loading ... -
Physiology of the dik-dik antelope.
(Department of Veterinary Anatomy and Physiology, University of Nairobi, 1988)1. The East African dik-dik antelope represents a miniature model ruminant for comparative studies. 2. Dik-diks are browsers, consuming a diet consistently high in fermentable and digestable plant material. 3. Their foregut ... -
Renal excretion of urea in a small east African antelope, the dik-dik (Rhynchotragus kirkii)
(Department of Veterinary Anatomy and Physiology, University of Nairobi, 1988)1. A study on the renal handling of urea by the dik-dik antelope (Rhynchotragus kirkii) was conducted. 2. Plasma and urine samples were analysed for osmolality, urea and creatinine concentrations during dehydration and ... -
Urea excretion as a strategy for survival in a fish living in a very alkaline environment.
(Nature Publishing GroupDepartment of Veterinary Anatomy and Physiology, University of Nairobi, 1989-01)Ammonia is toxic to all vertebrates. It can be converted to the less toxic urea, but this is a metabolically expensive process found only in terrestrial vertebrates that cannot readily excrete ammonia and marine fish that ... -
Scanning electron microscope study of the morphology of the reptilian lung: the Savanna monitor lizard Varanus exanthematicus and the pancake tortoise Malacochersus tornieri.
(Department of Veterinary Anatomy and Physiology, University of Nairobi, 1989)The morphology of the lungs of two reptilian species, Varanus exanthematicus and Malacochersus tornieri, have been studied on gross preparations, latex casts, and critical-point-dried tissues. The shape of these lungs was ... -
Adaptations of a tropical swamp worm, alma emini, for subsistence in a H2S-rich habitat: evolution of endosymbiotic bacteria, sulfide metabolizing bodies, and novel processes of elimination of neutralized sulfide complexes
(Department of Veterinary Anatomy and Physiology, University of Nairobi, 1998)The epithelial cell lining of the respiratory groove of Alma emini, an oligochaete glossoscolecid worm that lives in a hydrogen sulfide (H2S)-rich tropical swamp, was investigated by transmission electron microscopy to ... -
Digestive efficiency in two small, wild ruminants: the dik-dik and suni antelopes.
(Elsevier ScienceDepartment of Veterinary Anatomy and Physiology, University of Nairobi, 1999-10)A comparative study, using six dik-dik and eight suni antelope, was undertaken to identify similarities and differences that may exist in the digestive process of these two small, East African ruminant browsers. The suni ... -
Characterisation of smallholder pig production in Kikuyu Division, central Kenya.
(Department of clinical studies, University of Nairobi, 2004-06)A three-phase study was conducted in high-potential farming and peri-urban area in Kikuyu Division central Kenya to obtain farm and management data and to monitor health and productivity of pigs in smallholder farms. The ... -
Endocrinology of year-round reproduction in a highly seasonal habitat: environmental variability in testosterone and glucocorticoids in baboon males
(2012)In conditions characterized by energetic constraints, such as in periods of low food availability, some trade-offs between reproduction and self-maintenance may be necessary; even year-round breeders may then be forced to ... -
Life history context of reproductive aging in a wild primate model
(Department of Veterinary Anatomy and Physiology, 2010)The pace of reproductive aging has been of considerable interest, especially in regard to the long postreproductive period in modern women. Here we use data for both sexes from a 37-year longitudinal study of a wild baboon ... -
Social status predicts wound healing in wild baboons
(Department of Veterinary Anatomy and Physiology, 2012)Social status can have striking effects on health in humans and other animals, but the causes often are unknown. In male vertebrates, status-related differences in health may be influenced by correlates of male social ... -
Isolation and characterization of group B streptococci from human and bovine sources within and around Nairobi.
(Department of Public Health, Pharmacology and Toxicology, 1997)Group B streptococci (GBS) were isolated from bovine milk and from vaginas and throats of antenatal and postnatal women using TKT and rapid GBS media. Sixty-three of 529 (12%) bovine bulk milk samples, 9 of 48 (19%) vaginal ... -
Good biosecurity practices in small scale commercial and scavenging production systems in Kenya
(FAOFaculty of Agriculture. University of Nairobi, 2007)Although Kenya is on the migratory flyway for birds flying from Siberia through the Middle East and moving along the great Rift Valley to Southern Africa, it has not yet experienced avian influenza infection. However, ... -
Technical innovation and farm productivity growth in dryland Africa: The effects of structural adjustment on smallholders in Kenya
(Department of Agricultural Economics, University of Nairobi, Kenya, 2000-12)This paper uses non-parametric approach to measure technical innovation and productivity growth at the smallholder farm-level in dry-land sub-Saharan Africa during the initial years of the structural adjustment programmes ... -
Production and decomposition of plant litter in an arid rangeland of Kenya
(Department of Range Management, University of Nairobi, 2001-12)Data on litter production and decomposition in an arid rangeland in Kenya was collected over a two-year period. Utter sampling was carried out at monthly intervals using a rectangular 0.25m−2 quadrat frame. Utter within ...
