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"Experientia docet" - Experience is the best teacher

Digestibility of the same diet in cattle and sheep

  • 1983
  • Issue: 3
  • Volume: 13
P. van Rooyen and F.J. van der Merwe Page: 211 - 212

The question is posed of the applicability to cattle feeding, of digestibility data obtained with sheep. An experiment is described where the same high concentrate diet was fed at three levels, equalised per kg body mass between species. In energy…

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The influence of season on tonic luteinizing hormone (LH) and progesterone levels in cattle in a subtropical environment

  • 1983
  • Issue: 4
  • Volume: 13
B.P. Louw, A.W. Lishman, A. van Niekerk and S.F. Lesch Page: 253 - 256

Plasma LH and progesterone levels were measured daily from the sixth to the fifteenth day of the oestrous cycle in Friesland cows during December (summer) of one year, and April/May (autumn), June/July (winter) and September (spring) of the following year.…

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Eenvoudige metode vir die beraming van bosluisbestandheid by beeste

  • 1989
  • Issue: 3
  • Volume: 19
M.M. Scholtz, P.E. Lombard, D.S. de Bruin, C.B. Enslin & A.M. Spickett Page: 121 - 124

A simplified method, whereby tick resistance in cattle is assessed by counting all ticks under the tail and on the scrotum or udder only, was compared to the Australian method, where tick resistance is assessed by counting successful females on…

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Intake and rumen degradation in cattle fed napier grass (Pennisetum purpureum) supplemented with various levels of Desmodium int

  • 2001
  • Issue: 3
  • Volume: 31
J.N. Kariuki, S. Tamminga, C.K. Gachuiri, G.K. Gitau and J.M.K. Muia Page: 149 - 157

This study was conducted to assess the effect of greenleaf desmodium (Desmodium intortum) and sweet potato vine (Ipomoea batatus) supplementation of napier grass on dry matter intake, degradation and rumen fermentation in Friesian steers. Four fistulated steers were offered napier…

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Genetic relationships between three indigenous cattle breeds in Mozambique

  • 2000
  • Issue: 2
  • Volume: 30
A. Kotze, M. Harun, F. Otto and F.H. Van der Bank Page: 92 - 97

This study provides the first account of genetic relationships between three indigenous cattle breeds from Mozambique. Forty-two blood group factors and six blood proteins revealed genetic variation of 84% (Angone), (Bovine de Tete) and 90% (Landim) at the loci studied.…

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Cloning and SNP screening of the TLR4 gene and the association between its polymorphism and somatic cell score in dairy cattle

  • 2008
  • Issue: 2
  • Volume: 38
Xing-ping Wang, Shang-zhong Xu, Xue Gao, Jun-ya Li, Hong-yan Ren and Zhuo-ma Luoren Page: 101 - 109

Toll-like receptor 4 (TLR4) is a cell-surface receptor that activates innate and adaptive immune responses. Recognizing a broad class of pathogen-associated molecular patterns (PAMPs), TLR4 is implicated as a receptor mediating cellular activation in response to bacterial lipopolysaccharide (LPS), a…

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Mitochondrial DNA analysis of two Southern African

  • 1998
  • Issue: 2
  • Volume: 28
S.C. Parfitt, H.H. Huismans Page: 67 -

Mitochondrial DNA cleavage patterns from representative animals of the Afrikanerand Nguni sanga cattle breeds, indigenous to Southern Africa, were compared to the mitochondrial DNA cleavage patterns of the Brahman (zebu) and the Jersey (taurine) cattle breeds. Identical restriction patterns were…

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