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"Experientia docet" - Experience is the best teacher

Effects on egg production and quality of supplementing drinking water with calcium and magnesium

  • 2021
  • Issue: 4
  • Volume: 51
X.J. Yi, A. Rehman, R.W. Akhtar, A. Abbas, K. Hussain, R. Yasin, H.M. Ishaq, R.Z. Abbas, M.A. Raza, H.S. Hu & G. Li Page: 469 - 476

This study was conducted to appraise the effects on egg quality and production performance of laying hens when drinking water was supplemented with calcium (Ca) and magnesium (Mg). A total of 384 (64-week-old) Hy-line Brown laying hens were assigned at…

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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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Effect of supplementation on the digestibility of roughage diets

  • 1983
  • Issue: 1
  • Volume: 13
N.A. Todorov, E. Zagdsuren, R. Tserendulam & C. Badam Page: 13 - 16

Supplementation of low quality Mongolian hay and barley straw with urea, minerals and a small quantity (11 - 14% of total DM) of easily digestible carbohydrate had a positive influence on in vivo digestibility, increasing the net energy value of…

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Mineral composition of certain Atriplex species and Cassia sturtii

  • 2004
  • Issue: 5
  • Volume: 34
W.A. van Niekerk, C.F. Sparks, N.F.G. Rethman and R.J. Coertze Page: 105 - 107

The objective of this study was to quantify the macro and trace mineral concentrations of Atriplex canescens, A. halimus, A. nummalaria and Cassia sturtii at two different sites in South Africa. Statistically significant differences in Ca, P, Mg, Se, Zn…

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Mineral profile of diets consumed by range Spanish goats in a shrubland of North Mexico

  • 2004
  • Issue: 5
  • Volume: 34
M.A. Cerrillo-Soto, G. Nevarez-Carrasco, R.G. Rami­rez-Lozano, A. Nunez-Gonzllez, G. Garci­a-Di­az and A.S. Juarez-Reyes Page: 117 - 119

The study was conducted to determine mineral concentrations in diets selected by goats grazing a thorn shrubland in a semi-arid region of north Mexico. Three goats (38 ± 1.8 kg BW) fitted with oesophageal cannulae were used to collect monthly…

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Changes in nutrient composition of kikuyu foggage as winter progressed

  • 2008
  • Issue: 4
  • Volume: 38
E. Rautenbach, J.B.J. van Ryssen and W.A. van Niekerk Page: 342 - 349

Samples of kikuyu foggage (standing hay) were collected in northern KwaZulu-Natal from five adjoining paddocks to measure the changes in nutrient composition of the foggage as winter progressed. Leaves and stems were separated. The first samples collected on the 18th…

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