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"Experientia docet" - Experience is the best teacher

Supplementary heat requirements when brooding tom turkey poults

  • 2009
  • Issue: 1
  • Volume: 39
S. Gencoglan, C. Gencoglan and A. Akyuz Page: 1 - 9

In this study, the supplementary heat required when brooding turkey poults in winter and summer in the Kahramanmaras region of Turkey was determined using a heat and humidity balance method for a naturally ventilated house with a capacity of 6500…

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Milk production potential of two ryegrass cultivars with different total non-structural carbohydrate contents

  • 2009
  • Issue: 1
  • Volume: 39
R. Meeske, P.R. Botha, G.D. van der Merwe, J.F. Greyling, C. Hopkins and J.P. Marais Page: 15 - 21

The aim of the study was to compare a new Italian ryegrass (Lolium multiflorum) cultivar (Enhancer), bred to contain a high total non-structural carbohydrate content, with the cultivar, Dargle, in terms of dry matter (DM) production, nutritional value, carrying capacity…

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Genetic diversity and relationships among indigenous Mozambican cattle breeds

  • 2009
  • Issue: 1
  • Volume: 39
I. Bessa, I. Pinheiro, M. Matola, K. Dzama, A. Rocha and P. Alexandrino Page: 61 - 72

Three indigenous Mozambican cattle breeds, namely the Angone, Landim and Bovino de Tete were characterized using six proteins, 13 autosomal microsatellite loci and one Y-specific microsatellite locus (INRA124). The Mashona breed from Zimbabwe was also studied to elucidate the origin…

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Genetic parameter estimation of 16-month live weight and objectively measured wool traits in the Tygerhoek Merino flock

  • 2009
  • Issue: 1
  • Volume: 39
P.A. Matebesi, S.W.P. Cloete and J.B. van Wyk Page: 73 - 82

Genetic evaluation systems require the accurate estimation of genetic parameters. The genetic, phenotypic and environmental parameters for live weight and objectively measured wool traits were estimated for a South African Merino flock. Records of the Tygerhoek Merino resource flock were…

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Single nucleotide polymorphisms in the 5′-flanking region of the prolactin gene and the association with reproduction traits i

  • 2009
  • Issue: 1
  • Volume: 39
R.S. Jiang, L.L. Zhang, Z.Y. Geng, T. Yang and S.S. Zhang Page: 83 - 87

Prolactin (PRL), a polypeptide hormone synthesized and secreted by the animal's anterior pituitary gland, plays an important role in the regulation of mammalian lactation and avian reproduction. Considering the significant association between single nucleotide polymorphisms (SNPs) in the 5'-flanking region…

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Single nucleotide polymorphisms in the 5′-flanking region of the prolactin gene and the association with reproduction traits i

  • 2009
  • Issue: 1
  • Volume: 39
R.S. Jiang, L.L. Zhang, Z.Y. Geng, T. Yang and S.S. Zhang Page: 83 - 87

Prolactin (PRL), a polypeptide hormone synthesized and secreted by the animal's anterior pituitary gland, plays an important role in the regulation of mammalian lactation and avian reproduction. Considering the significant association between single nucleotide polymorphisms (SNPs) in the 5'-flanking region…

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Long-term selection experiment with Afrikaner cattle 2. Genetic parameters and genotype x environment interaction for calf growt

  • 2009
  • Issue: 2
  • Volume: 39
L.M. Beffa, J.B. van Wyk and G.J. Erasmus Page: 98 - 105

A selection and line x environment interaction study with grade Afrikaner cattle was established in 1956 at Matopos Research Station, Zimbabwe. Two selection lines of 100 cows each were reared in different management environments. The non-supplemented (NS) line relied on…

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In vitro biological activity of tannins from Acacia and other tree fruits: Correlations with colorimetric and gravimetric phenol

  • 2009
  • Issue: 2
  • Volume: 39
V. Mlambo, F.L. Mould, T. Smith, E. Owen, J.L.N. Sikosana and I. Mueller-Harvey Page: 131 - 143

This study was designed to investigate impact of tannins on in vitro ruminal fermentation parameters as well as relationships between concentration and in vitro biological activity of tannins present in tree fruits. Dry and mature fruits of known phenolic content…

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Effects of novel feed additives in wheat based diets on performance, carcass and intestinal tract characteristics of quail

  • 2009
  • Issue: 2
  • Volume: 39
S. Sarica, M. Corduk, G.F. Yarim, G. Yenisehirli and U. Karatas Page: 144 - 157

The present study was conducted to investigate the effects of the supplementation of an antibiotic growth promoter or novel feed additives with or without a xylanase-based enzyme complex to wheat-based diets on the growth performance, carcass yields and quality and…

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