Performance of dairy heifers raised on Xaraés palissadgrass (Brachiaria brizantha cv. Xaraés) pasture supplemented with two types of mineral mixture

The effects of selective (e.g. mineral supplement formulated on the basis of nutritional and clinical examination of the herd) or commercial mineral supplementation of crossbred dairy heifers (Holstein-Mantiqueira), on daily weight gain (DWG), body condition score (BCS), age at first mating (AFM) an...

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Published in:Pesquisa Veterinária Brasileira 2014-01, Vol.34 (1), p.46-50
Main Authors: Carvalho, Carlos Augusto B. de, Peres, Afonso A. C., Premazzi, Linda Monica, Malafaia, Pedro, Carvalho, Maria Inês A. B., Paciullo, Domingos Sávio C., Costa, Viviane A. Carli
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Language:eng ; por
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Brachiaria brizantha cv. Xaraés
Capim-Xaraés
consumo de sal mineral
escore de condição corporal
ganho de peso
oferta de forragem
suplementação mineral seletiva
VETERINARY SCIENCES
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creator Carvalho, Carlos Augusto B. de
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description The effects of selective (e.g. mineral supplement formulated on the basis of nutritional and clinical examination of the herd) or commercial mineral supplementation of crossbred dairy heifers (Holstein-Mantiqueira), on daily weight gain (DWG), body condition score (BCS), age at first mating (AFM) and the intake of mineral mixture (IMM) managed on Xaraés palissadgrass pasture (Brachiaria brizantha cv. Xaraés) were evaluated from February 2006 to March 2008. Structural characteristics, forage allowance and nutritional value of Xaraés palissadgrass were also evaluated. The structural variables of pasture, allowances and nutritive value of forage, besides the DWG were only affected (p
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Xaraés) pasture supplemented with two types of mineral mixture</title><source>SciELO Brazil</source><creator>Carvalho, Carlos Augusto B. de ; Peres, Afonso A. C. ; Premazzi, Linda Monica ; Malafaia, Pedro ; Carvalho, Maria Inês A. B. ; Paciullo, Domingos Sávio C. ; Costa, Viviane A. Carli</creator><creatorcontrib>Carvalho, Carlos Augusto B. de ; Peres, Afonso A. C. ; Premazzi, Linda Monica ; Malafaia, Pedro ; Carvalho, Maria Inês A. B. ; Paciullo, Domingos Sávio C. ; Costa, Viviane A. Carli</creatorcontrib><description>The effects of selective (e.g. mineral supplement formulated on the basis of nutritional and clinical examination of the herd) or commercial mineral supplementation of crossbred dairy heifers (Holstein-Mantiqueira), on daily weight gain (DWG), body condition score (BCS), age at first mating (AFM) and the intake of mineral mixture (IMM) managed on Xaraés palissadgrass pasture (Brachiaria brizantha cv. Xaraés) were evaluated from February 2006 to March 2008. Structural characteristics, forage allowance and nutritional value of Xaraés palissadgrass were also evaluated. The structural variables of pasture, allowances and nutritive value of forage, besides the DWG were only affected (p&lt;0.05) by season, with highest results for spring and summer. Throughout the experimental period (730 days), no sign of mineral deficiency was detected in heifers that ingested the selective supplement. The DWG and AFM were not influenced by the mineral mixture offered (0.52 and 0.33 kg/day during the spring/summer and in fall/winter for DWG, respectively, and 813 days of AFM). The IMM was higher for commercial mineral mixture than for selective (61.6 and 51.0g/day respectively). The BCS was slightly higher for selective (3.17) than for the commercial (3.02) mineral mixture. Thus, the selective mineral supplement was a strategy to prevent mineral deficiency in this herd and resulted in similar performance at lower costs (e.g. due to less IMM) of crossbred heifers when compared with the commercial mineral supplementation. Foram avaliados os efeitos da suplementação mineral seletiva (i.e. aquela feita com base no exame clínico-nutricional do rebanho) ou comercial sobre o desempenho de novilhas leiteiras Holandês-Mantiqueira, com base em seus ganhos de peso diários (GMD), escores da condição corporal (ECC), idades à primeira cobertura (IPC) e consumos de mistura mineral (CMM), criadas em pastagem de capim-Xaraés (Brachiaria brizantha cv. Xaraés), no período de fevereiro de 2006 a março de 2008. Foram também avaliadas as características estruturais do pasto, oferta e valor nutritivo da forragem. Durante todo período experimental (730 dias), nenhum sinal de deficiência mineral foi detectado nas novilhas que ingeriram o suplemento seletivo. As variáveis estruturais do pasto, as ofertas e o valor nutritivo da forragem, além do GMD, somente foram influenciadas (p&lt;0,05) pela estação do ano, com maiores e melhores resultados obtidos para a primavera e verão. O GMD e a IPC não foram influenciados pela mistura mineral ofertada (0,52 e 0,33 kg/dia durante a primavera/verão e outono/inverno para GMD, respectivamente, e 813 dias de IPC). O CMM foi maior para mistura mineral comercial que para seletiva (61,6 e 51,0g/UA/dia, respectivamente). O ECC foi superior para mistura mineral seletiva (3,17) que para comercial (3,02). Esta suplementação mineral seletiva foi uma estratégia que permitiu evitar o aparecimento de estados carenciais no rebanho e obter desempenho similar e com menor custo quando comparada com a suplementação mineral comercial.</description><identifier>ISSN: 0100-736X</identifier><identifier>ISSN: 1678-5150</identifier><identifier>EISSN: 0100-736X</identifier><identifier>DOI: 10.1590/S0100-736X2014000100008</identifier><language>eng ; por</language><publisher>Colégio Brasileiro de Patologia Animal - CBPA</publisher><subject>Brachiaria brizantha cv. 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Bras</addtitle><date>2014-01</date><risdate>2014</risdate><volume>34</volume><issue>1</issue><spage>46</spage><epage>50</epage><pages>46-50</pages><issn>0100-736X</issn><issn>1678-5150</issn><eissn>0100-736X</eissn><abstract>The effects of selective (e.g. mineral supplement formulated on the basis of nutritional and clinical examination of the herd) or commercial mineral supplementation of crossbred dairy heifers (Holstein-Mantiqueira), on daily weight gain (DWG), body condition score (BCS), age at first mating (AFM) and the intake of mineral mixture (IMM) managed on Xaraés palissadgrass pasture (Brachiaria brizantha cv. Xaraés) were evaluated from February 2006 to March 2008. Structural characteristics, forage allowance and nutritional value of Xaraés palissadgrass were also evaluated. The structural variables of pasture, allowances and nutritive value of forage, besides the DWG were only affected (p&lt;0.05) by season, with highest results for spring and summer. Throughout the experimental period (730 days), no sign of mineral deficiency was detected in heifers that ingested the selective supplement. The DWG and AFM were not influenced by the mineral mixture offered (0.52 and 0.33 kg/day during the spring/summer and in fall/winter for DWG, respectively, and 813 days of AFM). The IMM was higher for commercial mineral mixture than for selective (61.6 and 51.0g/day respectively). The BCS was slightly higher for selective (3.17) than for the commercial (3.02) mineral mixture. Thus, the selective mineral supplement was a strategy to prevent mineral deficiency in this herd and resulted in similar performance at lower costs (e.g. due to less IMM) of crossbred heifers when compared with the commercial mineral supplementation. Foram avaliados os efeitos da suplementação mineral seletiva (i.e. aquela feita com base no exame clínico-nutricional do rebanho) ou comercial sobre o desempenho de novilhas leiteiras Holandês-Mantiqueira, com base em seus ganhos de peso diários (GMD), escores da condição corporal (ECC), idades à primeira cobertura (IPC) e consumos de mistura mineral (CMM), criadas em pastagem de capim-Xaraés (Brachiaria brizantha cv. Xaraés), no período de fevereiro de 2006 a março de 2008. Foram também avaliadas as características estruturais do pasto, oferta e valor nutritivo da forragem. Durante todo período experimental (730 dias), nenhum sinal de deficiência mineral foi detectado nas novilhas que ingeriram o suplemento seletivo. As variáveis estruturais do pasto, as ofertas e o valor nutritivo da forragem, além do GMD, somente foram influenciadas (p&lt;0,05) pela estação do ano, com maiores e melhores resultados obtidos para a primavera e verão. O GMD e a IPC não foram influenciados pela mistura mineral ofertada (0,52 e 0,33 kg/dia durante a primavera/verão e outono/inverno para GMD, respectivamente, e 813 dias de IPC). O CMM foi maior para mistura mineral comercial que para seletiva (61,6 e 51,0g/UA/dia, respectivamente). O ECC foi superior para mistura mineral seletiva (3,17) que para comercial (3,02). Esta suplementação mineral seletiva foi uma estratégia que permitiu evitar o aparecimento de estados carenciais no rebanho e obter desempenho similar e com menor custo quando comparada com a suplementação mineral comercial.</abstract><pub>Colégio Brasileiro de Patologia Animal - CBPA</pub><doi>10.1590/S0100-736X2014000100008</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record>
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ispartof Pesquisa Veterinária Brasileira, 2014-01, Vol.34 (1), p.46-50
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source SciELO Brazil
subjects Brachiaria brizantha cv. Xaraés
Capim-Xaraés
consumo de sal mineral
escore de condição corporal
ganho de peso
oferta de forragem
suplementação mineral seletiva
VETERINARY SCIENCES
title Performance of dairy heifers raised on Xaraés palissadgrass (Brachiaria brizantha cv. Xaraés) pasture supplemented with two types of mineral mixture
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