Leptin concentrations in finishing beef steers and heifers and their association with dry matter intake, average daily gain, feed efficiency, and body composition

The objective of this experiment was to determine the association of circulating plasma leptin concentrations with production and body composition measures of finishing beef steers and heifers and to determine if multiple sampling time points improve the associations of plasma leptin concentrations with production and body composition traits. Individual DMI and ADG were determined for 84 d using steers and heifers (n = 127 steers and n = 109 heifers). Blood was collected on day 0, day 42, and day 83 for determination of plasma leptin concentrations.

Source: Domestic Animal Endocrinology - January 6, 2016 Category: Endocrinology Authors: A.P. Foote, R.G. Tait, D.H. Keisler, K.E. Hales, H.C. Freetly Source Type: research