Feedlot Performance and Carcass Characteristics of Steers Fed High-Energy Rations

Abstract

THREE feeding trials, 24 [pure Zebu and Zebu x Friesian crossbred] steers per each, were conducted to compare 4 rations [treatments) at three different periods of the year. 

Four equal and randomly distributed groups of steers were put on 4 different but iso-calorie rations. Levels of crude protein varied from 21.4 to 18.9% as shown in table 1. The steers were individually fed for 56 days to effect 1.12 kg. gain per head daily. 

Digestibility levels of the four rations were determined [Table 2]. At slaughter, carcass data were obtained and analysed [Table 4]. Animal performance, and economics of the feeding operation data are presented in Table 3. 

Results of these studies showed that the 30-20% cotton seed rations gave significantly [P <0.001] higher total liveweight gains, slightly heavier carcasses and better grades than the other two rations. 

Considering results of all the parameters measured and Federal Government of Nigeria's concerted efforts to boost grains and meat production on large scales, ration 3 should be recommended. Because, with abundant supplies of grains and regular supplies of animals, faster throughput and increased gross return per feedlot per annum are feasible.