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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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Serum progesterone as an indicator of cyclic activity in post-partum goat does

  • 2009
  • Issue: 5
  • Volume: 39
V.M. Mmbengwa, B.M. Gundidza, J.P.C. Greyling, M.D. Fair, L.M.J. Schwalbach, J.E.J. du Toit and A. Samie Page: 306 - 311

Abstract The aim of this trial was to assess post-partum ovarian activity of the does of two South African goat breeds from their serum progesterone concentrations. Between seven and 100 days post-partum, does from the Boer goat breed and an…

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Comparison of growth rates in the tissues of primal cuts of Canadian composites

  • 2009
  • Issue: 5
  • Volume: 39
L.A. Goonewardene, Z. Wang, R.W. Seneviratne, J.A. Basarab, E.K. Okine, J. Stewart-Smith, J.L. Aalhus and M.A. Price Page: 289 - 293

Beef composites (C) have combined favourable traits of pure breeds.  The objective was to compare the growth rates (GR) of muscle (M) and fat (F) in the primal cuts of serially harvested Beefbooster® C types (SM = C of small…

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Assessment of Nili-Ravi buffalo (Bubalus bubalis) semen by MTT reduction assay

  • 2009
  • Issue: 5
  • Volume: 39
M. Iqbal, A. Ijaz, M. Aleem, H. Rehman and M.S. Yousaf Page: 294 - 300

MTT (3-(4,5-dimethyl thiazol-2-yl)-2,5-diphenyl tetrazolium bromide) assay is commonly used to validate the viability of metabolically active cells. The study was conducted to examine and validate the MTT test to assess the sperm viability of Nili-Ravi buffalo bulls and compare the…

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A model for assessing Medicago Sativa L. hay quality

  • 2009
  • Issue: 5
  • Volume: 39
G.D.J. Scholtz, H.J. van der Merwe and T.P. Tylutki Page: 301 - 305

A study was conducted to identify chemical parameters and/or models for assessing Medicago sativa L. (L) hay quality, using near infrared reflectance spectroscopy (NIRS) analysis and Cornell Net Carbohydrate and Protein System (CNCPS) milk prediction as a criterion of accuracy. …

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Influence of a polyclonal antibody preparation on the in situ degradability of three energy sources

  • 2009
  • Issue: 5
  • Volume: 39
W.G. Otero, C.T. Marino, F.R. Alves, F.A. Ferreira, M.B. Arrigoni and P.H.M. Rodrigues Page: 270 - 274

The objective of this study was to evaluate the effect of a polyclonal antibody preparation (PAP) against specific ruminal bacteria on the in situ degradability of dry-grounded maize grain (DMG), high moisture maize silage (HMMS) starch and citrus pulp (CiPu)…

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Monensin and protein supplements on methane production and rumen protozoa in bovine fed low quality forage

  • 2009
  • Issue: 5
  • Volume: 39
G.B. Neto, A. Berndt, J.R. Nogueira, J.J.A.A. Demarchi and J.C. Nogueira Page: 280 - 283

This study aimed at evaluating the effect of sodium monensin and protein supplementation in the enteric methane production and the population of ruminal protozoa in bovine fed Brachiaria brizantha Marandu cultivar hay. The treatments were: mineralized salt, mineralized salt with…

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Influence of species/cultivar and season on the quality of Atriplex grown at different sites in South Africa

  • 2009
  • Issue: 5
  • Volume: 39
W.A. van Niekerk, Abubeker Hassen, P.J. Vermaak and R.J. Coertze Page: 238 - 241

Atriplex species/cultivars [Atriplex nummularia, A. canescens (Santa Rita) and A. canescens (Field Reserve 1)] were compared in terms of chemical composition and in vitro digestibility. The plant material was sampled at different seasons (autumn and winter) and from different sites…

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Rumen pH and NH3-N concentration of sheep fed temperate pastures supplemented with sorghum grain

  • 2009
  • Issue: 5
  • Volume: 39
M. Aguerre, J.L. Repetto, A. Pérez-Ruchel, A. Mendoza, G. Pinacchio and C. Cajarville Page: 246 - 250

The aim of this study was to evaluate the effect of sorghum grain supplementation on ruminal pH and NH3-N concentration of wethers consuming a fresh temperate pasture (Lotus corniculatus) in metabolism cages. Sixteen Corriedale x Milchschaf wethers were fed temperate…

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Dry matter intake and digestibility of temperate pastures supplemented with sorghum grain in wethers and heifers

  • 2009
  • Issue: 5
  • Volume: 39
M. Aguerre, C. Cajarville, V. Machado, G. Persak, S. Bambillasca and J.L. Repetto Page: 251 - 255

The aim of this study was to evaluate the effect of sorghum grain supplementation on total and forage dry matter (DM) intake and digestibility of wethers and heifers consuming temperate pasture. Twenty four Corriedale x Milchschaf wethers and 24 crossbred…

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