The role of water intake on sexual dimorphism for early growth of broilers

Two experiments were conducted to investigate feed intake and body weight of males restricted to the water intake of ad libitum females immediately after hatch. Ad libitum males were heavier and consumed more feed than ad libitum females, with differences becoming significant after Day 10. Body weig...

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Bibliographic Details
Published inPoultry science Vol. 65; no. 3; pp. 433 - 435
Main Author Marks, H.L
Format Journal Article
LanguageEnglish
Published England 01.03.1986
Subjects
ABSORCION DE AGUA
ABSORPTION D'EAU
Animals
APETITO
APPETIT
APPETITE
Body Weight
BROILER CHICKENS
Chickens - growth & development
COCKS
Drinking
FEED INTAKE
Feeding Behavior - physiology
Female
INGESTION DE PIENSO
Male
PESO
POIDS
POLLO DE ENGORDE
POULET DE CHAIR
PRISE ALIMENTAIRE (ANIMAUX)
Sex Characteristics
Water Deprivation
WATER UPTAKE
WEIGHT
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Summary:Two experiments were conducted to investigate feed intake and body weight of males restricted to the water intake of ad libitum females immediately after hatch. Ad libitum males were heavier and consumed more feed than ad libitum females, with differences becoming significant after Day 10. Body weight and feed intake of water-restricted males and females were essentially identical, suggesting that when males and females receive the same amount of water, they also consume similar amounts of feed. Ad libitum males tended to have higher feed efficiencies than females, whereas water-restricted males and females had similar feed efficiencies. These data indicate that unless males are able to consume more water than females, there is an absence of development of sexual dimorphism in body weight during early life.
Bibliography:8638760
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ISSN:0032-5791
1525-3171
DOI:10.3382/ps.0650433