TY - JOUR
T1 - The nutrient intake of laying hens given a choice of diets, in relation to their production requirements
AU - Emmans, G. C.
PY - 1977/5/1
Y1 - 1977/5/1
N2 - 1. Sixty individually-caged birds, each of two stocks, were offered either a complete diet (11.2 MJ ME, 173 g crude protein and 32 g Ca per kilogram) or a choice between the same diet and ground barley. All diets were offered ad libitum from 41 to 56 weeks of age. 2. Weight gain, rate of lay, mean egg weight egg output, shell thickness and total food intake were unaffected by the treatments in either stock. 3. The mean intake of the complete diet was 825 and 845 g/kg of total intake with standard deviations between individuals of 73 and 61 g/kg respectively in the two stocks. 4. In birds given a choice of diet the one selected was related to output (P<0-01).
AB - 1. Sixty individually-caged birds, each of two stocks, were offered either a complete diet (11.2 MJ ME, 173 g crude protein and 32 g Ca per kilogram) or a choice between the same diet and ground barley. All diets were offered ad libitum from 41 to 56 weeks of age. 2. Weight gain, rate of lay, mean egg weight egg output, shell thickness and total food intake were unaffected by the treatments in either stock. 3. The mean intake of the complete diet was 825 and 845 g/kg of total intake with standard deviations between individuals of 73 and 61 g/kg respectively in the two stocks. 4. In birds given a choice of diet the one selected was related to output (P<0-01).
UR - http://www.scopus.com/inward/record.url?scp=73349103860&partnerID=8YFLogxK
U2 - 10.1080/00071667708416358
DO - 10.1080/00071667708416358
M3 - Article
AN - SCOPUS:73349103860
SN - 0007-1668
VL - 18
SP - 227
EP - 236
JO - British Poultry Science
JF - British Poultry Science
IS - 3
ER -