Abstract
Effect of chromium-methionine supplementation on meat quality of broilers reared under heat stress
Highlights
During the experimental period from 22 to 43 days of age, broilers were kept in climatic chambers under HS at 33.0 ± 0.8°C for 12 h (7:00 a.m. to 6:59 p.m.)
Treatments consisted of the basal diet with one of 6 chromium-methionine (CrMet) (Availa Cr 1000, Zinpro Corporation, Eden Prairie, MN, USA), levels formulated for 22-to-43-day-old broilers, according to nutritional recommendations by Rostagno et al, (2011), with
To determine the cooking weight loss (CWL) the breast fillets were cut, weighed, wrapped in aluminum foil and placed on a plate heated at 180°C
Summary
During the experimental period from 22 to 43 days of age, broilers were kept in climatic chambers under HS at 33.0 ± 0.8°C for 12 h (7:00 a.m. to 6:59 p.m.). Effects of the increasing dietary levels of CrMet on breast meat quality are presented on Table 1. The CrMet supplementation levels affected quadratically (P=0.0070) the WHC in the breast meat of broilers slaughtered at 43 days of age.
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