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Maintenance requirements for methionine and cysteine, and threonine for poultry

  • 2011
  • Issue: 3
  • Volume: 41
M.A. Bonato, N.K. Sakomura, J.C. Siqueira, J.B.K. Fernandes & R.M. Gous Page: 209 - 222

This study aimed to estimate the methionine & cystine (M&C), and threonine (THR) requirements for maintenance of adult roosters differing in liveweight and body composition, and to estimate the concentrations of M&C and threonine in ‘ideal’ protein for maintenance. Five…

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Polymorphism of the porcine CGA gene and its association with growth and carcass traits

  • 2011
  • Issue: 3
  • Volume: 41
Xiaoling Jiang, Lifan Zhang, Ningying Xu, Jipeng Zhai & Zunzhou Lv Page: 232 - 242

Glycoprotein hormones in the pituitary gland affect a myriad of biological processes such as development, growth, metabolic control and gametogenesis. The quantitative trait loci (QTL) near their common glycoprotein a subunit gene (CGA) have been reported inconsistently. The aim of…

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Effect of breed on performance and carcass characteristics of Mexican hair sheep (Short communication)

  • 2011
  • Issue: 3
  • Volume: 41
F.G. Ríos, A. Gómez-Vázquez, J.M. Pinos-Rodríguez, J.C. García-López, A. Estrada-Angulo, J. Hernández-Bautista & J.J. Portillo Page: 275 - 279

To determine the effect of breed on growth performance and carcass characteristics in Mexican hair sheep, 48 lambs (average 38.9 ± 1.56 kg body weight, BW) were used in a completely randomized experimental design. The breed types assessed were 16…

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Effects of oxidised oil and vitamin E on performance and some blood traits of heat-stressed male broilers

  • 2011
  • Issue: 3
  • Volume: 41
H. Bayraktar, Ö. Altan, Z. Açıkgöz, Ş.H. Baysal & Ç. Şeremet Page: 288 - 296

The present study was conducted so that the possible effects of thermally-oxidised dietary oil and vitamin E supplementation could be determined on the performance, lipid peroxidation, antioxidant defence system and some blood and meat quality traits of broilers. Broilers were…

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Feeding of whole cottonseed on performance, carcass characteristics and intestinal morphology of Zandi lambs

  • 2011
  • Issue: 3
  • Volume: 41
M. Absalan, A. Afzalzade, M. Mirzaee, S.D. Sharifi, M. Khorvash & M. Kazemi-Benchenari Page: 309 - 317

The present study was conducted to determine the effect of including different levels of whole cottonseed (WCS) in the finishing diet of lambs on their dry matter intake (DMI), live weight gain, feed conversion ratio (FCR, kg feed/kg gain), carcass…

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Effects of dietary dihydropyridine on laying performance and lipid metabolism of broiler breeder hens

  • 2011
  • Issue: 4
  • Volume: 41
Z.Y. Niu, Y.N. Min, H.Y. Wang, J. Zhang, W.C. Li, L. Li & F.Z. Liu Page: 331 - 336

The experiment was conducted to investigate the effects of dihydropyridine supplementation on the laying performance and lipid metabolism of broiler breeder hens. A total of 720 forty-five-week old broiler breeder hens were randomly divided into four experimental groups, each group…

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Prediction of energy requirements of Murciano-Granadina preruminant female kids using the National Research Council (Short commu

  • 2011
  • Issue: 4
  • Volume: 41
A.L. Martínez Marín, M. Pérez Hernández, L.M. Pérez Alba, D. Carrión Pardo & A.G. Gómez Castro Page: 345 - 349

Data collected on metabolizable energy (ME) intake and growth performance of preruminant female kids of the Murciano-Granadina breed was used to assess the accuracy of the latest U. S. National Research Council (NRC) recommendations to predict their energy requirements. Female…

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Effect of concentrate supplementation during early lactation on plasma IGF-I concentrations and reproductive performance of dair

  • 2011
  • Issue: 4
  • Volume: 41
F.Y. Obese, T.E. Stirling, R.C. Stockdale, K.L. Macmillan, A.R. Egan & S. Humphrys Page: 360 - 367

An experiment was conducted to assess the effects of body condition score (BCS) at calving and level of feed supplementation during early lactation on the Insulin-like growth Factor-I (IGF-I) and reproductive performance in 72 Holstein cows in a pasture-based system…

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