Performance, nitrogen balance and microbial efficiency of beef cattle under concentrate supplementation strategies in intensive management of a tropical pasture

Tropical Animal Health and Production
Tiago Cunha RochaLeilson Rocha Bezerra

Abstract

The objective of this study was to evaluate the effect of concentrate supplementation strategies on the nutritional characteristics of beef cattle in intensive management of tropical pasture. Twenty-four Nellore steer at 250 kg body weight (BW) were used, divided into two plots, with 12 animals in each plot. The experimental area consisted of 32 paddocks with 0.25 ha of Panicum maximum cv. Mombaça. The experiment consisted of 96-day experimental periods, with three periods of 32 days. The strategies studied were P = exclusively on pasture and without concentrate supplementation (control), ES = pasture and supplemented with a concentrate low in protein, PS = pasture and supplemented with high protein content, and PES = pasture and supplementation with balanced protein-energy. There was reduced intake of DM in animals of the treatment P in relation to supplemented pasture, regardless of supplementation. Animals fed on ES showed an intake of more nutrients than the animals on PS. The CP and TDN were also lower in P than in pastures where animals received the additional types of concentrate, and the PS animals showed greater digestibility of CP and TDN than the ES animals. However, the animals exhibited similar weight gains. Animal...Continue Reading

References

Nov 1, 1992·Journal of Animal Science·J B RussellC J Sniffen
Jan 1, 1990·The British Journal of Nutrition·M N McLeodD J Minson
Oct 1, 1980·Journal of Dairy Science·J Harmeyer, H Martens
Jan 1, 1995·Journal of Animal Science·D P Poppi, S R McLennan
Jul 1, 1997·Journal of Dairy Science·D R Mertens
Dec 28, 2012·Tropical Animal Health and Production·Leilson Rocha BezerraAderbal Marcos de Azevedo Silva

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Citations

Jun 12, 2019·Tropical Animal Health and Production·Alyce Raiana Monteiro Dos SantosMilene Rodrigues Dias
Mar 12, 2021·Journal of Animal Physiology and Animal Nutrition·Jarbas Miguel da Silva JúniorLuciana Navajas Rennó
Mar 14, 2021·Animal : an International Journal of Animal Bioscience·V V S AlmeidaD M Lima

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