Differential Age Response of Turkeys to Protein and Sorghum Tannin Levels

Autor: T. W. Sullivan, N. J. Gonzalez, M. M. Beck, J. H. Douglas
Rok vydání: 1993
Předmět:
Zdroj: Poultry Science. 72:1944-1951
ISSN: 0032-5791
DOI: 10.3382/ps.0721944
Popis: Three experiments were conducted to determine the effect of protein and dietary sorghum tannin levels on weight gain (WG), feed conversion (FC), and pancreas weight (PW) of female turkeys from Day 1 to 12 wk of age. Two protein levels (100 and 85% of NRC, 1984) and five tannin levels (0, .49, .98, 1.47, and 1.96%, expressed as percentage catechin equivalents) in a factorial arrangement of treatments were used in all experiments. Turkeys were fed the dietary treatments from Day 1 to 4 wk, 4 to 8 wk, and 8 to 12 wk in Experiments 1, 2, and 3, respectively. No significant (P > .05) interaction between protein and tannin level was observed for WG, FC, or PW in all experiments. Neither protein nor tannin level had an effect on PW expressed as a percentage of body weight. In all experiments, feeding the suboptimal protein level significantly (P
Databáze: OpenAIRE