Effect of varying manganese and available phosphorus levels in the diet on egg production and eggshell quality of layers

From National Research Council Canada

DOI	Resolve DOI: https://doi.org/10.1016/S0377-8401(97)00153-3
Author	Search for: Hossain, Sazzad M.; Search for: Bertechini, Antonio G.
Format	Text, Article
Subject	available phosphorus; manganese; egg production; shell thickness
Abstract	The effects of graded levels of available phosphorus (2.5, 3.5 and 4.5 g kg−1) and added manganese (25, 50 and 75 mg kg−1) on performance of commercial layers were evaluated during the period from 42 to 52 weeks of age, in a 3×3 factorial design. All experimental diets contained 160 g kg−1 CP, 11.3 MJ kg−1 ME and 41.2 g kg−1 calcium. Manganese was supplemented from MnSO4, 5H2O. No significant effect of available phosphorus and manganese on feed consumption, feed conversion per kg of egg mass was observed. Egg production and egg weight were significantly (P<0.05) increased with supplements of 50 and 75 mg kg−1 manganese, regardless of the available phosphorus level in the diet. Eggshell thickness was not influenced by manganese levels, but in increasing the available phosphorus from 2.5 to 4.5 g kg−1, eggshell thickness was reduced significantly (P<0.05).
Publication date	1998-04
Publisher	Elsevier
In	Animal Feed Science and Technology 71, no. 3-4: 303–308.
Language	English
Peer reviewed	Yes
NRC publication	This is a non-NRC publication "Non-NRC publications" are publications authored by NRC employees prior to their employment by NRC.
NPARC number	23001826
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Record identifier	f1750ae2-54ce-40f2-87c5-57d45716766f
Record created	2017-04-13
Record modified	2020-03-20

Date modified:: 2024-07-27