Growth rate, metabolic parameters and carcass quality in turkeys fed diets with different inclusion levels and sources of supplemental copper

Otowski, Kamil; Ognik, Katarzyna; Kozłowski, Krzysztof

doi:10.22358/jafs/112186/2019

Cited by 7 publications

(1 citation statement)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cu is a fundamental trace element for the growth and metabolic function of broilers, which is involved in haematopoiesis, bone development, and production of enzymes [ 1 , 2 ]. Supplemental Cu in diets has been shown to minimize the adverse effect of reactive oxygen species by suppressing the peroxidation of lipids, thus affecting the nutritive value and meat quality in chickens and turkeys [ 3 , 4 ]. The nutrient requirements of poultry [ 5 ] suggested a Cu requirement of 8 mg/kg for normal body functioning in broiler chickens.…”

Section: Introductionmentioning

confidence: 99%

Hot-melt extruded copper sulfate affects the growth performance, meat quality, and copper bioavailability of broiler chickens

et al. 2022

View full text Add to dashboard Cite

Objective: This study was conducted to evaluate the effects of the supplementation of diets of broiler chickens with hot-melt extruded CuSO 4 (HME-Cu) on their growth performance, nutrient digestibility, gut microbiota, small intestinal morphology, meat quality, and copper (Cu) bioavailability.Methods: A total of 225 broilers (Ross 308), one-day old and initial weight 39.14 g, were weighed and distributed between 15 cages (15 birds per cage) in a completely randomized experimental design with 3 treatments (diets) and 5 replicates per treatment. Cages were allotted to three treatments including control (without supplemental Cu), IN-Cu (16 mg/kg of CuSO 4 ), and HME-Cu (16 mg/kg of HME processed CuSO 4 ). Results: The HME-Cu treatment tended to increase the overall body weight gain (BWG) (p<0.10). The apparent digestibility of Cu was increased by supplementation of HME-Cu at phase 2 (p<0.05). The Escherichia coli (E. coli) count in cecum tended to decrease with the supplementation with Cu (p<0.10). In addition, the HME-Cu treatment had a higher pH of breast meat than the control and IN-Cu treatments (p<0.05). Significant increases in the cooking loss (CL), water-holding capacity (WHC), and lightness in the breast were observed in the HME-Cu treatment compared to the control (p<0.05). The Cu content of excreta increased with the Cu supplementation (p<0.05). The concentration of excreta Cu in broilers was decreased in the HME-Cu compared to the IN-Cu in phase 2 (p<0.05). The Cu concentration in the liver was increased with the HME-Cu supplementation, compared with the control diets (p<0.05). Conclusion:This study showed that HME-Cu supplementation at the requirement level (16 mg/kg diets) in broiler diets did not affect the growth performance and the physiological function of Cu in broilers. However, supplementation of Cu in HME form improved the meat quality and the bioavailability of Cu.

show abstract