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Mortality and production characteristics of laying chickens fed high- and low-erucic acid rapeseed oils.

B. March,R. Soong

Published 1976 in Poultry Science

ABSTRACT

Laying pullets were fed a diet supplemented with three percent of either high-erucic acid rapeseed (HEAR) oil or low-erucic acid rapeseed (LEAR) oil for 39 weeks. Egg production for the period was 78.8 and 80.1% by the birds fed the respective oils. Average egg weights were 56.8 and 58.7 g. respectively. Gains in body weight, liver weight and adrenal gland weight were similar with the two types of oil fed. Feed consumption was similar for the two groups of birds. The efficiency of utilization of the diet containing HEAR oil was accordingly lower than that of the diet containing LEAR oil. In the birds fed HEAR and LEAR oil respectively mortality attributed to metabolic disorders of the reproductive system, liver, and kidney was 3.3% and 1.2%. Mortality from other causes in the birds fed the two oils was 3.2 and 3.8% of the original populations.

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