Partially Dehulled Sunflower Seeds in Diets for Grazing Chickens: Effect in Meat Quality
Rev. bras. ciênc. avic
; 24(4): eRBCA-2021-1573, 2022. tab, graf
Article
in En
| VETINDEX
| ID: biblio-1382117
Responsible library:
BR68.1
ABSTRACT
The effect of including partially dehulled sunflower seeds in the diet of grazing chickens in meat quality was evaluated. Two hundred and forty, one-day-old, Ross 308 chickens were used, randomly distributed into four treatments with six replicates of 10 birds each. Seventy-two birds were slaughtered at seven weeks of age, 18 per treatment, extracting the Pectoralis major muscle to analyze meat quality. The treatments were completely randomized in a 2x2 factorial arrangement, where type of rearing (confinement or grazing) and diet (base diet or base diet substituting 10% soybean meal for partially dehulled sunflower seeds) were the independent variables. The grazing chickens spent 8 hours a day in a white clover (Trifolium repens) paddock. Including sunflower seeds improved (p<0.05) the color and crude protein (CP) in breast meat (p<0.05), while grazing increased (p<0.05) CP, dry mater (DM), and shear force (SF), and the percentage of breast fat decreased (p<0.05) by up to 50%. Additionally, grazing increased (p<0.05) saturated fatty acids (SFA) and reduced (p<0.05) lipid oxidation by up to 50%. Partially replacing soybean meal with partially dehulled sunflower seeds in the diet of grazing chickens with white clover improves the physicochemical characteristics and nutritional quality of the breast meat; it also decreases lipid oxidation, extending the shelf life of the meat.(AU)
Key words
Full text:
1
Database:
VETINDEX
Main subject:
Seeds
/
Helianthus
/
Meat
Limits:
Animals
Language:
En
Journal:
Rev. bras. ciênc. avic
Year:
2022
Document type:
Article