Interactive effect of dietary levels of calcium and 25-hydroxy vitamin D3 on the performance, serum biochemical concentration and digestibility of laying hens from 61 to 70 weeks of age

Autor:	Chun Ik Lim, Kyeong Seon Ryu
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	25-hydroxy vitamin d3 calcium laying hens nutrition digestibility performance serum concentration Zoology QL1-991
Zdroj:	Animal Bioscience, Vol 35, Iss 9, Pp 1426-1433 (2022)
Druh dokumentu:	article
ISSN:	2765-0189 2765-0235
DOI:	10.5713/ab.22.0003
Popis:	Objective The present research was conducted to evaluate the interactive effect of dietary concentration of calcium (Ca) and 25-hydroxy vitamin D3 (25OHD3) on the performance, blood composition and digestibility of laying hens. Methods A total of 540 Hy-line brown laying hens aged 61 to 70 weeks were randomly allotted in a 3×3 factorial arrangement, consisting of three levels of 25OHD3 (0, 25, and 50 μg/kg) and three levels of Ca (3.5%, 4.0%, and 4.5%). All diets had basal concentration of 3,000 IU/kg of vitamin D3 including the 2,800 kcal/kg of metabolic energy and 16% of crude protein. Results The results showed that interactive effect (p
Databáze:	Directory of Open Access Journals
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