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Papers by Roberto Pompeu
Arquivo Brasileiro De Medicina Veterinaria E Zootecnia, 2009
This study evaluated the performance of sheep raised on Tanzania grass under intermittent stockin... more This study evaluated the performance of sheep raised on Tanzania grass under intermittent stocking with four supplementation proportions 0; 0.6; 1.2, and 1.8% of live weight (LW) and eight replicates, in a completely randomized design with tree grazing periods, and 21 rest periods. The average daily gain (GMD), the total weight gain (GPT), the days to reach 12kg (D12), the stocking rate (sheep/ha - TLO and animal unit/ha - TLUA), the live weight yield (RPV), and the concentrate: gain ratio (CAC) was evaluated. It was observed a square effect of supplementation proportions on GMD, estimated in 65.87 and 113.15g/day for male sheep that was not supplemented and received 1.8% LW supplement. It was observed a square effect of supplementation level on GPT. The D12 to 0% LW level was estimated in 204 days, decreasing to 113 days when the sheep received 1.8% LW supplement. It was observed square effects of supplementation proportions on TLO and TLUA. It was observed a negative linear effect...
Journal of Clinical Oncology, 2007
Revista Brasileira de Engenharia Agrícola e Ambiental, 2014
Ciência Animal Brasileira, 2011
Revista Brasileira De Zootecnia-brazilian Journal of Animal Science, 2008
Revista Brasileira de Saúde e Produção Animal, 2014
Revista Brasileira de Saúde e Produção Animal, 2014
Revista Brasileira de Saúde e Produção Animal, 2013
... VIEIRA, Marieta Maria Martins 2* ; CÂNDIDO, Magno José Duarte 2 ; BOMFIM, Marco Aurélio Delmo... more ... VIEIRA, Marieta Maria Martins 2* ; CÂNDIDO, Magno José Duarte 2 ; BOMFIM, Marco Aurélio Delmondes 3 ; SEVERINO, Liv Soares 2 ; ZAPATA, Jorge Fernando Fuentes 4 ; BESERRA, Liandro Torres 2 ; MENESES, Abner José Girão 2 ; FERNANDES, Joana Paula Belém 2 ...
Revista Ciência Agronômica, 2011
Page 1. Revista Ciência Agronômica, v. 42, n. 2, p. 518-525, abr-jun, 2011 Centro de Ciências Agr... more Page 1. Revista Ciência Agronômica, v. 42, n. 2, p. 518-525, abr-jun, 2011 Centro de Ciências Agrárias - Universidade Federal do Ceará, Fortaleza, CE www.ccarevista.ufc.br ISSN 1806-6690 Artigo Científico Componentes estruturais do resíduo pós-corte em capim-massai ...
BRAZILIAN JOURNAL OF FOOD TECHNOLOGY, 2011
Small Ruminant Research, 2013
Revista Brasileira de Zootecnia, 2012
Revista Brasileira de Zootecnia, 2011
Page 1. Received July 13, 2010 and accepted February 15, 2011. Corresponding author: nevesvv@yaho... more Page 1. Received July 13, 2010 and accepted February 15, 2011. Corresponding author: nevesvv@yahoo.com.br Gas exchange in massai grass under five nitrogen fertilization levels during establishment and regrowth1 Marcos ...
Revista Brasileira de Zootecnia, 2009
Revista Brasileira de Zootecnia, 2011
Page 1. Received May 6, 2010 and accepted February 15, 2011. Corresponding author: nevesvv@yahoo.... more Page 1. Received May 6, 2010 and accepted February 15, 2011. Corresponding author: nevesvv@yahoo.com.br Biomass components in Massai grass during establishment and regrowth under five nitrogen fertilization levels1 ...
Revista Brasileira de Zootecnia, 2008
Revista Brasileira de Zootecnia, 2013
Revista Brasileira De Zootecnia-brazilian Journal of Animal Science, 2009
The biomass flow of Panicum maximum cv. Tanzania under intermittent stocking with four concentrat... more The biomass flow of Panicum maximum cv. Tanzania under intermittent stocking with four concentrate supplementation levels, with three grazing periods and 21 rest periods was evaluated. A split plot design, with supplementation level (0.0, 0.6, 1.2 and 1.8% of live weight) and grazing cycles as sub-parcels, with three replicates (paddocks) by treatment was used. There was no effect between supplementation levels and grazing cycles on the leaves 1 and 2 TAlF ratio, averaging 0.69. There was a square effect of the supplementation level on the leaf elongation rate, estimating 5.04, 4.95 (estimated minimum point) and 5.70 cm/tiller × day to the levels of 0.0, 0.46 and 1.8% LW, respectively. No effect of the supplementation levels on the culm elongation rate and culm height was observed. The supplementation levels and grazing cycles did not affect the senescence rate of leaves remaining after grazing, of the new emerged leaves, the total senescence rate. No effect of the supplementation levels and grazing cycles on the phylochron was observed. There was no effect of the supplementation levels and grazing cycles on the herbage growth and herbage accumulation rates. A residual leaf area index of 2.00 and 2.72 was estimated for supplementation levels of 0.0 and 1.8% LW. No effects of the supplementation levels on the tiller population density were observed. In relation to the cycles, cycle 4 was higher than cycle 2 and similar to the others. The biomass flows of tanzania grass are little affected by the supplementation levels.
Arquivo Brasileiro De Medicina Veterinaria E Zootecnia, 2009
This study evaluated the performance of sheep raised on Tanzania grass under intermittent stockin... more This study evaluated the performance of sheep raised on Tanzania grass under intermittent stocking with four supplementation proportions 0; 0.6; 1.2, and 1.8% of live weight (LW) and eight replicates, in a completely randomized design with tree grazing periods, and 21 rest periods. The average daily gain (GMD), the total weight gain (GPT), the days to reach 12kg (D12), the stocking rate (sheep/ha - TLO and animal unit/ha - TLUA), the live weight yield (RPV), and the concentrate: gain ratio (CAC) was evaluated. It was observed a square effect of supplementation proportions on GMD, estimated in 65.87 and 113.15g/day for male sheep that was not supplemented and received 1.8% LW supplement. It was observed a square effect of supplementation level on GPT. The D12 to 0% LW level was estimated in 204 days, decreasing to 113 days when the sheep received 1.8% LW supplement. It was observed square effects of supplementation proportions on TLO and TLUA. It was observed a negative linear effect...
Journal of Clinical Oncology, 2007
Revista Brasileira de Engenharia Agrícola e Ambiental, 2014
Ciência Animal Brasileira, 2011
Revista Brasileira De Zootecnia-brazilian Journal of Animal Science, 2008
Revista Brasileira de Saúde e Produção Animal, 2014
Revista Brasileira de Saúde e Produção Animal, 2014
Revista Brasileira de Saúde e Produção Animal, 2013
... VIEIRA, Marieta Maria Martins 2* ; CÂNDIDO, Magno José Duarte 2 ; BOMFIM, Marco Aurélio Delmo... more ... VIEIRA, Marieta Maria Martins 2* ; CÂNDIDO, Magno José Duarte 2 ; BOMFIM, Marco Aurélio Delmondes 3 ; SEVERINO, Liv Soares 2 ; ZAPATA, Jorge Fernando Fuentes 4 ; BESERRA, Liandro Torres 2 ; MENESES, Abner José Girão 2 ; FERNANDES, Joana Paula Belém 2 ...
Revista Ciência Agronômica, 2011
Page 1. Revista Ciência Agronômica, v. 42, n. 2, p. 518-525, abr-jun, 2011 Centro de Ciências Agr... more Page 1. Revista Ciência Agronômica, v. 42, n. 2, p. 518-525, abr-jun, 2011 Centro de Ciências Agrárias - Universidade Federal do Ceará, Fortaleza, CE www.ccarevista.ufc.br ISSN 1806-6690 Artigo Científico Componentes estruturais do resíduo pós-corte em capim-massai ...
BRAZILIAN JOURNAL OF FOOD TECHNOLOGY, 2011
Small Ruminant Research, 2013
Revista Brasileira de Zootecnia, 2012
Revista Brasileira de Zootecnia, 2011
Page 1. Received July 13, 2010 and accepted February 15, 2011. Corresponding author: nevesvv@yaho... more Page 1. Received July 13, 2010 and accepted February 15, 2011. Corresponding author: nevesvv@yahoo.com.br Gas exchange in massai grass under five nitrogen fertilization levels during establishment and regrowth1 Marcos ...
Revista Brasileira de Zootecnia, 2009
Revista Brasileira de Zootecnia, 2011
Page 1. Received May 6, 2010 and accepted February 15, 2011. Corresponding author: nevesvv@yahoo.... more Page 1. Received May 6, 2010 and accepted February 15, 2011. Corresponding author: nevesvv@yahoo.com.br Biomass components in Massai grass during establishment and regrowth under five nitrogen fertilization levels1 ...
Revista Brasileira de Zootecnia, 2008
Revista Brasileira de Zootecnia, 2013
Revista Brasileira De Zootecnia-brazilian Journal of Animal Science, 2009
The biomass flow of Panicum maximum cv. Tanzania under intermittent stocking with four concentrat... more The biomass flow of Panicum maximum cv. Tanzania under intermittent stocking with four concentrate supplementation levels, with three grazing periods and 21 rest periods was evaluated. A split plot design, with supplementation level (0.0, 0.6, 1.2 and 1.8% of live weight) and grazing cycles as sub-parcels, with three replicates (paddocks) by treatment was used. There was no effect between supplementation levels and grazing cycles on the leaves 1 and 2 TAlF ratio, averaging 0.69. There was a square effect of the supplementation level on the leaf elongation rate, estimating 5.04, 4.95 (estimated minimum point) and 5.70 cm/tiller × day to the levels of 0.0, 0.46 and 1.8% LW, respectively. No effect of the supplementation levels on the culm elongation rate and culm height was observed. The supplementation levels and grazing cycles did not affect the senescence rate of leaves remaining after grazing, of the new emerged leaves, the total senescence rate. No effect of the supplementation levels and grazing cycles on the phylochron was observed. There was no effect of the supplementation levels and grazing cycles on the herbage growth and herbage accumulation rates. A residual leaf area index of 2.00 and 2.72 was estimated for supplementation levels of 0.0 and 1.8% LW. No effects of the supplementation levels on the tiller population density were observed. In relation to the cycles, cycle 4 was higher than cycle 2 and similar to the others. The biomass flows of tanzania grass are little affected by the supplementation levels.