NDLI: Suplementação mineral protéica com cromo orgânico sobre o desempenho produtivo e qualidade da carne de bovinos Nelore e F1 Brangus X Nelore terminados em pastagem no Centro-Oeste do Brasil

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Suplementação mineral protéica com cromo orgânico sobre o desempenho produtivo e qualidade da carne de bovinos Nelore e F1 Brangus X Nelore terminados em pastagem no Centro-Oeste do Brasil

Content Provider	Semantic Scholar
Author	Neto, Polizel Ângelo
Copyright Year	2007
Abstract	The present work aimed to evaluate the effect of mineral protein supplementation with organic chromium addition on productive performance, with carcass evaluations by means of ultrasound measures, and beef quality in steers finished on pasture system. For this, 18 Nellore and 18 F1 Brangus x Nellore steers were used, with 16 months of average initial age and sloughed at 22 months, distributed equally in two treatment of mineral protein supplementation with and without organic chromium addition. There was no observed difference between genetic groups regarding average daily gain (ADG). On the other hand, animals supplied with chromium showed better ADG (494 g) than control animals (420 g). Once again, there was no observed difference among experimental treatments regarding rib eye area, subcutaneous fat thickness at the back and at the rump, measured by ultrasound, reaching final mean values of 63,42 cm, 5,46 mm e 5,58 mm, respectively. It was observed an average of 235.01 kg for hot carcass weight and 52.09% for average carcass yield, with a superiority for the chromium treatment (238 kg and 52.9%) versus control (231 kg and 51.2%), and without difference between genetic groups; also obtained quality beef in every experimental treatment evaluated. The Nellore e F1 Brangus x Nellore steers show equal production potential of the quality beef on pasture, and that mineral protein supplementation with organic chromium increase the weight gain and carcass yield, not influencing the evaluated beef quality parameters. Key-words: carcass, crossing, mineral, tenderness, ultrasound, yield
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://livros01.livrosgratis.com.br/cp039686.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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