Effects of dietary protein level during rearing period and age at overfeeding on magret and foie gras quality in male mule ducks

The aim of this trial was to study the effects of dietary protein content during the rearing period on the performance of mule ducks, according to age at overfeeding (O). Ducks (n = 612) were divided into four groups differing in the protein content in the diet offered during the starting period (S,...

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Bibliographic Details
Published in:Animal science journal 2018-03, Vol.89 (3), p.570-578
Main Authors: Arroyo, Julien, Molette, Caroline, Lavigne, Franck, Margetyal, Carole, Amador, Olivier, Dubois, Jean‐Pierre, Fortun‐Lamothe, Laurence
Format: Article
Language:English
Subjects:
Age
Age Factors
Animal Feed
Animal Husbandry
Animals
Aquatic birds
Diet
Diet - veterinary
dietary protein
Dietary Proteins - administration & dosage
Ducks - growth & development
Ducks - metabolism
Foie gras
Food Quality
Low protein diet
Male
male mule duck
Meat
Muscles
Nutrient deficiency
Organ Size
overfeeding
Pectoralis Muscles - anatomy & histology
Proteins
Vegetable Proteins - administration & dosage
Waterfowl
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Summary:The aim of this trial was to study the effects of dietary protein content during the rearing period on the performance of mule ducks, according to age at overfeeding (O). Ducks (n = 612) were divided into four groups differing in the protein content in the diet offered during the starting period (S, 0–20 days; Sl vs. Sh: 150 vs. 175 g/kg crude protein (CP)) and growing‐finishing period (GF; 21–67 or 81 days, depending on age at O; GFl vs. GFh: 133 vs. 152 g/kg CP). The relative weight of pectoral muscle was lower when ducks were fed a low protein diet during S (−5%, P 
ISSN:1344-3941
1740-0929
DOI:10.1111/asj.12941