DIETARY METHIONINE AND CHOLINE RELATION ON THE PERFORMANCE OF JAPANESE QUAILS (Coturnix coturnix japonica)
DOI:
https://doi.org/10.5216/cab.v12i4.9976Keywords:
Poultry productionAbstract
We evaluated the relationship between levels of methionine and choline on the performance of Japanese quails (Coturnix coturnix japonica) at the production stage, using 432 birds at 65 days of age and weighing 155g, in a completely randomized design in 4x2 (methionine x choline) factorial arrangement with six replicates and nine birds per unit. The levels of choline and methionine were 0, 200, 400 and 600 ppm and 0.65 and 0.75%, respectively. We analyzed the following variables: egg production (% / hen / day), egg weight (g), egg mass (g egg / hen/ day), feed conversion (g / g) and food intake (g / d). We observed a significant interaction for egg production (P ? 0.01) and egg mass (P ? 0.05) with linear effect for 0.65% methionine and inclusion of increasing levels of choline. There was a quadratic effect of choline levels on feed intake, with 0.65% methionine. The use of choline in diets of quail in production only effects bird performance when 0.65% methionine level is used. Supplementation with choline causes an increase in average egg weight regardless of the level of dietary methionine supplementation.
KEYWORDS: laying quails; nutrition; nutritional requirements; performance; sulphur amino acids.
Downloads
Published
How to Cite
Issue
Section
License
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g. in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
