In semi-arid areas of Southern Africa, dehydration can compromise the performance and welfare of local chickens, particularly during the growing period when confinement is curtailed and birds are left to scavenge for feed and water. The effect of water restriction on the growth performance was compared in Naked Neck (NNK) and Ovambo (OVB) chickens that are predominant in Southern Africa. A tota...

The paucity of information on reasons for the increased efficiency of egg production by pullets which have been restricted-fed during rearing is discussed. Preliminary results are presented which form part of a detailed research programme aimed at elucidating the mechanisms responsible. Production responses of hens which had been restricted fed during rearing were similar to those expected. Egg...

Feed restriction may be a strategy used by farmers to limit digestive disorders after weaning. The objective of this study was to evaluate the effect of feed restriction applied 1 wk after weaning on growth performance and health of pigs reared in 2 different sanitary conditions (Good vs. Poor; managed in opposite ways with respect to cleaning, animal density, and preventive antibiotic use) and...

Epidemiological and experimental data indicate that caloric restriction in early postnatal life may improve liver lipid metabolism in low birth weight individuals. The present study investigated transcriptional and metabolic responses to low (U) and normal (N) birth weight (d 75, T1) and postnatal feed restriction (R, 60% of controls, d 98, T2) followed by subsequent refeeding until d 131 of ag...

in heat-stressed broiler chickens. One hundred and twenty chicks were allocated into four groups of 30 each. Group A (feed restriction), B restriction + L-serine), C (ad libitum) D libitum L-serine). Feed (20%) was implemented on days 7–14, L-serine (200 mg/kg) provided orally from 1–14. Seven chickens slaughtered each group at 35 old to determine meat drip loss, cooking loss pH; tibia bone wei...