SciELO - Scientific Electronic Library Online

 
vol.66 issue1Performance of straightbred and crossbred Tabapuã cattle on brachiaria pasture in Bahia statePerformance and feed efficiency traits of Purunã growing bulls of three groups of residual feed intake author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Arquivo Brasileiro de Medicina Veterinária e Zootecnia

Print version ISSN 0102-0935

Abstract

CARVALHO, S. et al. Productive characteristics of lambs finished in feedlot fed different levels of soybean soapstock. Arq. Bras. Med. Vet. Zootec. [online]. 2014, vol.66, n.1, pp.259-267. ISSN 0102-0935.  http://dx.doi.org/10.1590/S0102-09352014000100035.

We evaluated the nutrient intake, weight gain, carcass characteristics and the non carcass components of lambs in feedlot finishing diets containing increasing levels of soybean soapstock . We used 25 male lambs , castrated Texel , randomly distributed into five treatments consisting of proporti ons of 0 %, 2 . 89 %, 5. 77 %, 8 . 6 5 % or 11 .55 % of soybean soapstock i n the dry matter this diets. Linear reduction of nutrient intake was observed , with the exception of the consumption of ether extract , which increased linearly. The live weight at slaughter , th e daily weight gain , the weights and yields from hot and cold carcass and the weights of hindquarter and rib decreased linearly , while the p roportions of rumen and gastrointestinal tract, full and gastrointestinal tract content increased in a linear way as it increased the proportion of level this soybean soapstock in the diet. The proportion of hindquarter varied in a quadratic way. The increase in soybean soapstock in the diet of lambs in confinement system leads to decrease in productive performance of a nimals. However, the daily profit obtained per animal is not affected, and we may infer that the inclusion of soybean soapstock to the level of 11.55% of the total dry matter of the diet is a viable alternative to termination of feedlot lambs.

Keywords : sheep; carcass; meat.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License