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"Experientia docet" - Experience is the best teacher

Effects of egg weight on hatchability, chick hatch-weight and subsequent productivity of indigenous Venda chickens in Polokwane, South Africa

  • 2013
  • Issue: 5
  • Volume: 43
J.W. Ng’ambi, M.W. Thamaga, D. Norris, M. Mabelebele & O.J. Alabi Page: 69 - 74

A study was conducted to determine the effect of egg weight on hatchability, chick hatch-weight, mortality and subsequent productivity of indigenous Venda chickens. Three hundred and sixty indigenous Venda chicken eggs were collected for a period of a week and…

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Dietary energy level for optimum productivity and carcass characteristics of indigenous Venda chickens raised in closed confinement

  • 2013
  • Issue: 5
  • Volume: 43
O.J. Alabi, J.W. Ng’ambi & D. Norris Page: 75 - 80

A study was conducted to determine dietary energy levels for optimum productivity and carcass characteristics of indigenous Venda chickens raised in closed confinement. Four dietary treatments were considered in the first phase (1 to 7 weeks) on two hundred day-old…

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Variability of indigestible NDF in C3 and C4 forages and implications on the resulting feed energy values and potential microbial protein synthesis in dairy cattle

  • 2013
  • Issue: 5
  • Volume: 43
E. Raffrenato & L.J. Erasmus Page: 93 - 97

Estimation of indigestible neutral detergent fibre (iNDF) is necessary for accurate and precise predictions of feed energy values and potential microbial protein from digested NDF in the rumen. Due to lengthy laboratory procedures, iNDF has been estimated using the formula…

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Sensory characteristics and tenderness of meat from Ankole bulls: Influence of crossbreeding and feeding system

  • 2013
  • Issue: 5
  • Volume: 43
K. Kamatara, D. Mpairwe, M. Christensen, D. Mutetikka & J. Madsen Page: 107 - 110

Eating-quality attributes of meat from Ankole cattle and their Friesian and Boran crossbreds finished in different feeding systems were evaluated. Seventy two 8-month-old bulls (24 each of pure Ankole (A), Ankole x Boran (B) and Ankole x Friesian (F) (191…

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Maize silage as a finisher feed for Merino lambs

  • 2013
  • Issue: 5
  • Volume: 43
W.F.J. van de Vyver, J.A. Beukes & R. Meeske Page: 111 - 115

A study was conducted to determine whether silage can be used as an ingredient in the finishing rations of Merino lambs. One of the concerns regarding the use of silage as the main ingredient of a sheep feed is its…

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Effect of finishing system on carcass characteristics and composition of Mubende goats and their Boer goat crossbreds

  • 2013
  • Issue: 5
  • Volume: 43
K. Kamatara, D. Mpairwe, M. Christensen, D. Mutetikka & J. Madsen Page: 121 - 125

A study was conducted to evaluate the influence of feeding systems on carcass characteristics and composition of Mubende goats and their Boer goat crossbreds. A 2 x 3 factorial arrangement was used to randomly allocate 60 castrates, 30 purebred Mubende…

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Effect of dietary fatty acid saturation on egg production at end-of-lay

  • 2013
  • Issue: 5
  • Volume: 43
G.C. Buitendach, F.H. de Witt, A. Hugo, H.J. van der Merwe & M.D. Fair Page: 126 - 130

This study was conducted to investigate the effects of dietary fatty acid saturation on production performances of laying hens at end-of-lay. Five isoenergetic (12.6 MJ AME/kg DM) and isonitrogenous (170 g CP/kg DM) diets were formulated using different lipid sources…

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The effect of lipid saturation on nutrient digestibility of layer diets

  • 2013
  • Issue: 5
  • Volume: 43
E.J. King, F.H. de Witt, H.J. van der Merwe, A. Hugo & M.D. Fair Page: 131 - 134

A study was conducted to investigate the effect of dietary lipid saturation on nutrient digestibility of layer diets. Five isoenergetic (12.6 MJ AME/kg DM) and isonitrogenous (170 g CP/kg DM) diets were formulated using different lipid sources at a constant…

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The effect of dietary energy and the inclusion of a β-adrenergic agonist in the diet on the meat quality of feedlot lambs

  • 2013
  • Issue: 5
  • Volume: 43
T.S. Brand, M.P. Genis, L.C. Hoffman, W.F.J. van de Vyver, R. Swart & G.F. Jordaan Page: 140 - 145

β-adrenergic agonists are commonly used in livestock production to enhance meat production and decrease the fat content of the body. β-adrenergic agonists normally improve growth performance. Recent increases in meat prices and the change in consumer preference towards leaner meat…

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