Ingestive behavior and growth when chicks from lines differing in feed consumption are reared separately or intermingled

Noble, D. O.; Dunnington, E. A.; Siegel, P. B.

doi:10.1016/0168-1591(93)90087-6

Cited by 19 publications

(3 citation statements)

References 23 publications

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“…Mortality of LL chicks occurred during the first week and was caused by starve-out, a situation common in this line which has an incidence of anorexia (Zelenka et al, 1988;Noble et al, 1993). Mortality was similar for diet A (8%) and diet E (10%).…”

Section: Mortality and Body Weightsmentioning

confidence: 89%

Growth related traits in body weight selected lines and their crosses reared under different nutritional regimens

Liu

Dunnington²,

Siegel³

1995

British Poultry Science

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1. Four populations--two that had undergone 37 generations of selection for high (HH) and low (LL) body weight, and reciprocal crosses between them (HL and LH) were fed two diets differing in protein and energy. Diet A, under which selection had been made, contained 200 g protein and 11.23 MJ/kg. Diet E contained 240 g protein and 13.16 MJ/kg. 2. Body weight and feed efficiency were measured weekly from hatch to 56 d of age at which time oesophagus, abdominal fat pad, heart, liver and lungs were removed and weighed. At 35 d of age chicks were inoculated with sheep erythrocytes (SRBC) and antibody titre was measured 6 d later. 3. Chicks fed diet E were heavier than those fed diet A. HH chicks were heavier than LL chicks with HL and LH chicks intermediate to the parental lines. LH chicks were heavier than HL ones reflecting large maternal effects. 4. Food efficiencies among stocks and diets were consistent with those for body weight, with HH > LH > HL > LL and E > A. Relative differences between diets were similar across ages and heterosis for food efficiency was about 15%. 5. Relative to body weight, oesophagus and liver weights were heavier in chickens fed diet A than fed diet E. The pattern reversed for abdominal fat pad. 6. Antibody to SRBC antigen was greater in the crosses than in line HH and in cross HL than line LL, with heterosis of 70%.

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Section: Mortality and Body Weightsmentioning

confidence: 89%

Growth related traits in body weight selected lines and their crosses reared under different nutritional regimens

Liu

Dunnington²,

Siegel³

1995

British Poultry Science

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“…Body weights of R chicks were also obtained to the nearest 0.1 g after removal of the yolk sac. The procedure for removal of the yolk sac has been described previously (Turro et al, 1994 Barbato et al, 1980;BoaAmponsen et al, 1991;O'Sullivan et al, 1992b;Noble et al, 1993). Generally, HW chickens were hyperphagic while LW ones were hypophagic with some individuals being anorexic (Burkhart et al, 1983;Zelenka et al, 1988).…”

Section: Introductionmentioning

confidence: 99%

“…Lines of chickens selected for high or low juvenile body weight (Dunnington and Siegel, 1985) differed in feeding behavior and food intake (Barbato et al, 1980;Dunnington et al, 1987;Boa Amponsen et al, 1991; O'Sullivan et al, 1992a;Noble et al, 1993 (Dunnington and Siegel, 1985). Chicks from each line were removed from the hatcher, wingbanded, and weighed to the nearest 0.1 g. Seventy-two chicks were then randomly assigned for either removal of the yolk sac (R) or to remain intact (I).…”

Section: Introductionmentioning

confidence: 99%

Removal of residual yolk at hatch influences food choice and feeding activity in lines of chickens selected for high or low juvenile body weight

Turro-Vincent¹,

Nitsan²,

Picard³

et al. 1994

Reprod. Nutr. Dev.

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Influence of the presence of 3-day-old chickens on the behaviour of meat and egg-type posthatch counterparts

Mahagna

Nir

Nitsan

1994

Applied Animal Behaviour Science

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Ingestive behavior and growth when chicks from lines differing in feed consumption are reared separately or intermingled

Cited by 19 publications

References 23 publications

Growth related traits in body weight selected lines and their crosses reared under different nutritional regimens

Growth related traits in body weight selected lines and their crosses reared under different nutritional regimens

Removal of residual yolk at hatch influences food choice and feeding activity in lines of chickens selected for high or low juvenile body weight

Influence of the presence of 3-day-old chickens on the behaviour of meat and egg-type posthatch counterparts

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