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

Par Conseil national de recherches du Canada

DOI	Trouver le DOI : https://doi.org/10.1016/S0377-8401(97)00153-3
Auteur	Rechercher : Hossain, Sazzad M.; Rechercher : Bertechini, Antonio G.
Format	Texte, Article
Sujet	available phosphorus; manganese; egg production; shell thickness
Résumé	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).
Date de publication	1998-04
Maison d’édition	Elsevier
Dans	Animal Feed Science and Technology 71, nº 3-4 : 303–308.
Langue	anglais
Publications évaluées par des pairs	Oui
Publication du CNRC	Cette publication n’est pas du CNRC Ce sont des publications qui ont été rédigées par un auteur du CNRC, mais avant que celui-ci soit employé du CNRC.
Numéro NPARC	23001826
Exporter la notice	Exporter en format RIS
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Identificateur de l’enregistrement	f1750ae2-54ce-40f2-87c5-57d45716766f
Enregistrement créé	2017-04-13
Enregistrement modifié	2020-03-20

Date de modification :: 2024-12-21