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Requirement of Sodium to Molted Laying Hens
Melo, R. D; Cruz, F. G. G; Melo, L. D; Feijó, J. C; Rufino, J. P. F; Brasil, R. J. M; Oliveira F, P. A; Silva, F. M. F.
Affiliation
  • Melo, R. D; Federal University of Amazonas. College of Agrarian Sciences. Manaus. BR
  • Cruz, F. G. G; Federal University of Amazonas. College of Agrarian Sciences. Manaus. BR
  • Melo, L. D; Federal University of Amazonas. College of Agrarian Sciences. Manaus. BR
  • Feijó, J. C; Federal University of Amazonas. College of Agrarian Sciences. Manaus. BR
  • Rufino, J. P. F; State University of Amazonas. College of Health Sciences. Manaus. BR
  • Brasil, R. J. M; State University of Amazonas. College of Health Sciences. Manaus. BR
  • Oliveira F, P. A; Federal University of Amazonas. College of Agrarian Sciences. Manaus. BR
  • Silva, F. M. F; Federal University of Amazonas. College of Agrarian Sciences. Manaus. BR
Rev. bras. ciênc. avic ; 22(1): eRBCA, 2020. tab
Article in En | VETINDEX | ID: biblio-1490747
Responsible library: BR68.1
Localization: BR68.1
ABSTRACT
The objective of this study was to determine the ideal requirement of sodium to molted laying hens. The experimental period lasted 105 days, divided into five periods of 21 days. Hisex White laying hens 150 with 84 weeks-of-age were used. The experimental design was completely randomized in a factorial scheme (5x3) with treatments constituted by five levels of sodium (0.10, 0.15, 0.20, 0.25, and 0.30%) in the diets, and three postmolt stages (early = 21 days, medium = 63 days, and final = 105 days). Performance and egg quality results were evaluated by Tukey test at 5%. Eggshell resistance and weight gain results were evaluated by polynomial regression at 5%. Except the yolk height, all performance and egg quality variables were affected (p 0.05) by the sodium levels and the hens age postmolt. The level of 0.15% of sodium in diets to postmolt laying hens provided better performance and egg quality, especially in the eggshell. Higher levels of sodium negatively affected the performance and egg quality. Hens in the early stage of postmolt period presented better performance and egg quality. At long-term, the postmolt hens presented worst results.
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Full text: 1 Database: VETINDEX Main subject: Sodium / Weight Gain / Chickens / Egg Shell Limits: Animals Language: En Journal: Rev. bras. ciênc. avic Year: 2020 Document type: Article

Full text: 1 Database: VETINDEX Main subject: Sodium / Weight Gain / Chickens / Egg Shell Limits: Animals Language: En Journal: Rev. bras. ciênc. avic Year: 2020 Document type: Article