caa a22 4500 386320233 CHVBK 20180307111623.0 cr unu---uuuuu 161130e198806 xx s 000 0 eng 10.1017/S0003356100019085 doi S0003356100019085 pii (NATIONALLICENCE)cambridge-10.1017/S0003356100019085 The growth to maturity of lean and fat lines of broiler chickens fed diets of different protein content: Evaluation of a model to describe growth and feeding characteristics [Elektronische Daten] Body weight and food intake were measured at different ages up to 30 weeks in males and 21 weeks in females in lean, fat and commercial lines of broiler chickens given diets of different crude protein content. The lean and fat lines showed no differences in rates of body-weight gain or final body weights but the lean line had consistently lower food intakes. Dietary protein concentration within the ranges studied did not influence final body weights. Equations derived from a theory of feeding and growth were used along with the data up to 21 weeks of age to calculate mature body weights and various feeding characteristics. These values were compared with those obtained by application of the theory to another set of broiler data. The theory was found to be sufficiently robust to give some consistent interpretations of data from experiments involving considerable differences in time, breed and diet. Copyright © British Society of Animal Science 1988 Whitehead C. C. AFRC Institute for Grassland and Animal Production, Poultry Department, Roslin, Midlothian EH25 9PS Parks J. R. Department of Animal Husbandry, University of Sydney, NSW 2006, Australia Animal Production Cambridge University Press 46/3(1988-06), 469-478 0003-3561 46:3<469 1988 46 ASC https://doi.org/10.1017/S0003356100019085 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0003356100019085 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Whitehead C. C. AFRC Institute for Grassland and Animal Production, Poultry Department, Roslin, Midlothian EH25 9PS NATIONALLICENCE 700 1- Parks J. R. Department of Animal Husbandry, University of Sydney, NSW 2006, Australia NATIONALLICENCE 773 0- Animal Production Cambridge University Press 46/3(1988-06), 469-478 0003-3561 46:3<469 1988 46 ASC CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge