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"Experientia docet" - Experience is the best teacher

Effects of organic acid supplementation on antioxidant capacity and immune responses of broilers challenged orally with Salmonella enterica subsp. enterica Typhimurium

  • 2014
  • Issue: 4
  • Volume: 44
A.M. Abudabos & S.I. Al-Mufarrej Page: 342 - 349

Four commercial organic acids and a reference antibiotic, Neoxyval, were administered to commercial broilers to evaluate the efficacy of these products during pre- and post-challenge with Salmonella enterica subsp. enterica Typhimurium (S. Typhimurium) on selected indicators of their antioxidant status…

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The effects of an organic rearing system and dietary supplementation of an essential oil mixture on performance and meat yield of slow-growing broilers in two seasons

  • 2014
  • Issue: 4
  • Volume: 44
K. Küçükyılmaz, M. Bozkurt, M. Çınar, A.U. Çatlı, E. Bintaş & R. Erkek Page: 360 - 370

In this study, performance and carcass characteristics of slow-growing broiler chicks, reared in organic or conventional systems, and fed a diet with an essential oil mixture (EOM, 48 mg/kg diet), were evaluated in the autumn and spring seasons. The rearing…

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Effect of Moringa oleifera leaf meal on finisher pig growth performance, meat quality, shelf life and fatty acid composition of pork

  • 2014
  • Issue: 4
  • Volume: 44
F.E. Mukumbo, V. Maphosa, A. Hugo, T.T. Nkukwana, T.P. Mabusela & V. Muchenje Page: 388 - 400

The effect of dietary inclusion of Moringa oleifera leaf meal (MOLM) on the feed conversion ratio (FCR) of finisher pigs, physico-chemical meat quality, fatty acid (FA) composition and shelf life of pork was investigated. A six-week feeding trial was conducted…

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Research and development on climate change and greenhouse gases in support of climate-smart livestock production and a vibrant industry (Invited paper)

  • 2014
  • Issue: 5
  • Volume: 44
M.M. Scholtz, H.C. Schönfeldt, F.W.C. Neser & G.M. Schutte Page: 1 - 7

Climate change represents a feedback-loop in which livestock production both contributes to the problem and suffers from the consequences. The impact of global warming and continued, uncontrolled release of greenhouse gasses (GHG) has twofold implications for the livestock industry, and…

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Methane production in different breeds, grazing different pastures or fed a total mixed ration, as measured by a Laser Methane Detector

  • 2014
  • Issue: 5
  • Volume: 44
S.M. Grobler, M.M. Scholtz, H. van Rooyen, M. Mpayipheli & F.W.C. Neser Page: 12 - 16

Agriculture is responsible for 5% to 10% of the global anthropogenic greenhouse gas (GHG) emissions. Livestock contribute about 65% of agricultural GHG and enteric fermentation accounts for 90% of this. The global warming potential of CH4 is known to be…

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The profitability and production of a beef herd on transitional Cymbopogon- Themeda veld, receiving three different levels of lick supplementation – Preliminary results

  • 2014
  • Issue: 5
  • Volume: 44
L.A. Foster, P.J. Fourie & F.W.C. Neser Page: 31 - 35

The importance of containing costs through the optimal utilization of feed emphasizes the need to optimize, rather than maximize, the rate of reproduction. It is, however, unknown which lick supplementation regimen, provided to an extensive beef herd on mixed veld,…

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The effect of dietary lipid sources on layer fertility and hatchability

  • 2014
  • Issue: 5
  • Volume: 44
O.S. Olubowale, F.H. de Witt, J.P.C. Greyling, A. Hugo, A.M. Jooste & M.B. Raito Page: 44 - 50

This study was conducted to investigate the effect of dietary fatty acids (FA) on the fertility and hatchability of laying hens at the end-of-lay period (69 - 77 weeks of age). Five isoenergetic (12.4 MJ ME/kg DM) and isonitrogenous (170…

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The effect of different dietary vitamin and mineral levels on certain production parameters, including egg shell characteristics of breeding ostriches

  • 2014
  • Issue: 5
  • Volume: 44
T.S. Brand, G.A. Tesselaar, L.C. Hoffman & Z. Brand Page: 51 - 57

Earlier studies on breeding birds indicated no effect of dietary energy-content on feed intake. This observation is contradictory to results for other animals and/or poultry where feed intake decreases with an increase in dietary energy level. Literature revealed that a…

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