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Feedlot Performance and Carcass Characteristics of Lambs Receiving Cortisone and Diethylstilbestrol¹

Oregon State University, Corvallis

Abstract

Fifty grade wether lambs having an average weight of approximately 34 kg. were fed for 6 weeks on an all pelleted, alfalfa-concentrate ration. Treatments consisted of diethylstilbestrol implantations and cortisone acetate injections. Compared to the control group, the administration of either substance, alone or in combination, always resulted in increased body-weight gain.

The carcass data presented generally support the contention of a protein anabolic effect for diethylstilbestrol and a lipid anabolic effect for cortisone in lambs. Both effects are apparent, at least to some extent, when the two materials are used in combination.

Flavor panel reactions to meat samples from cortisone treated animals were most favorable, especially with reference to the scores for tenderness, juiciness and over-all desirability.

¹ Technical Paper No. 2094; Oregon Agricultural Experiment Station.

² Department of Animal Science.

³ Department of Food Science and Technology.