SciELO - Scientific Electronic Library Online

 
vol.41 número3Relationship between production characteristics and breeding potential of 25-month old extensively managed Bonsmara bullsInteractive effect of dietary protein level and zilpaterol hydrochloride on feedlot performance and meat quality of steers índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Articulo

Indicadores

Links relacionados

  • En proceso de indezaciónCitado por Google
  • En proceso de indezaciónSimilares en Google

Compartir


South African Journal of Animal Science

versión On-line ISSN 2221-4062
versión impresa ISSN 0375-1589

Resumen

DANISMAN, R  y  GOUS, R.M.. Effect of dietary protein on the allometric relationships between some carcass portions and body protein in three broiler strains. S. Afr. j. anim. sci. [online]. 2011, vol.41, n.3, pp.194-208. ISSN 2221-4062.

ABSTRACT This paper reports the allometric relationships between some of the physical parts and body protein weight of three commercial broiler strains reared, sexes separate, on four dietary protein levels to six weeks of age. Birds were sampled at day old and then weekly from each of the treatments to determine the weights of the physical parts and the chemical composition of each of 582 birds. Allometric regressions were compared between strains, sexes and dietary protein levels using linear regression with groups. Whereas these regressions were similar over strains and sexes, some interactions were evident between factors, and differences occurred when broilers were fed differing dietary protein levels. These differences may be explained on the basis that lipid is deposited to different extents in each of the parts in response to dietary protein, although this was not tested. The allometric regressions presented are an attempt to provide information that would enable the prediction of the weights of breast meat, thigh, drum and wing at different stages of growth of broilers whose genotype and feed composition are adequately described.

Palabras clave : Breast meat; thigh; drum; wing; carcass yield; simulation modelling.

        · texto en Inglés     · Inglés ( pdf )

 

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons