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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sul. Para informações adicionais entre em contato com cppsul.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sul. |
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Data corrente: |
11/11/2021 |
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Data da última atualização: |
12/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MENEGAZZI, G.; YANINA GILES, P.; OBORSKY, M.; FAST, O.; MATTIAUDA, D. A.; GENRO, T. C. M.; CHILIBROSTE, P. |
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Afiliação: |
GABRIEL MENEGAZZI, Universidad de la República; PAMELA YANINA GILES, Universidad Nacional del Centro de la Provincia de Buenos Aires; MATÍAS OBORSKY, Universidad de la República Uruguay; OLIVER FAST, Universidad de la República Uruguay; DIEGO ANTONIO MATTIAUDA, Universidad de la República Uruguay; TERESA CRISTINA MORAES GENRO, CPPSUL; PABLO CHILIBROSTE, Universidad de la República Uruguay. |
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Título: |
Effect of post-grazing sward height on ingestive behavior, dry matter intake, and milk production of Holstein dairy cows. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Frontiers in Animal Science, v. 2, 742685, Nov 2021. |
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Idioma: |
Inglês |
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Conteúdo: |
Sward height is strongly related to the daily dry matter intake of grazing dairy cows, which consequently determines animal performance. Despite that, few studies have explored the potential to increase milk production by managing post-grazing sward height. An experiment was carried out to evaluate the effect of three defoliation intensities on a Lolium arundinaceum-based pasture on frequency and length of grazing meals and ruminating bouts, daily grazing and ruminating time, feeding stations and patches exploration, and dry matter intake and milk production of dairy cows. The treatments imposed were three different post-grazing sward heights: control (TC), medium (TM), and lax (TL), which were managed with 6, 9, and 12 cm of post-grazing sward heights during autumn and winter, and 9, 12, and 15 cm of post-grazing sward heights during spring, respectively. Thirty-six autumn-calving Holstein cows were grouped by parity (2.6 ± 0.8), body weight (618 ± 48) kg, and body condition score (2.8 ± 0.2) and randomized to the treatments. The pasture was accessed from 08:00 to 14:00 and 17:00 to 03:00 during spring and no supplement was involved during the evaluation period. Daily grazing time averaged 508 ± 15min and was not affected by treatment. The reduction of post-grazing sward height increased the length of the first grazing session in the morning and the afternoon. The number of grazing sessions was greater on TL than on TM, with no difference in TC. The number of feeding stations (the hypothetical semi-circle in front of an animal from which the bites were taken without moving the front forefeet) visited was less on TC than on TL, and neither of them differed from TM. Dry matter (DM) intake was lesser on TC than on TM and TL (14.7 vs. 17.8 kg DM). Milk production during the evaluation period was 13.1, 16.2, and 18.7 kg/day for TC, TM, and TL, respectively. The milk fat, protein, and lactose content did not differ between treatments. The cows on TC exhibited a lower intake rate, although they were less selective, probably as a consequence of the sward structure of TC treatment. The cows on TM adopted a compensation mechanism which allowed them to achieve the same dry matter intake as cows on TL, but lower milk production. The cows on TL were more selective than TC and TM resulting in higher digestible dry matter intake and consequently higher milk production. The intensity of defoliation impacts on the animal-plant interaction, and constitutes a valuable management tool that can be used to boost forage intake and milk production. The new developments on information technology would allow researchers to link behavioral data with response variables (e.g., milk production, health, welfare, etc.) at different spatio-temporal scales and support short and long-term management decisions. MenosSward height is strongly related to the daily dry matter intake of grazing dairy cows, which consequently determines animal performance. Despite that, few studies have explored the potential to increase milk production by managing post-grazing sward height. An experiment was carried out to evaluate the effect of three defoliation intensities on a Lolium arundinaceum-based pasture on frequency and length of grazing meals and ruminating bouts, daily grazing and ruminating time, feeding stations and patches exploration, and dry matter intake and milk production of dairy cows. The treatments imposed were three different post-grazing sward heights: control (TC), medium (TM), and lax (TL), which were managed with 6, 9, and 12 cm of post-grazing sward heights during autumn and winter, and 9, 12, and 15 cm of post-grazing sward heights during spring, respectively. Thirty-six autumn-calving Holstein cows were grouped by parity (2.6 ± 0.8), body weight (618 ± 48) kg, and body condition score (2.8 ± 0.2) and randomized to the treatments. The pasture was accessed from 08:00 to 14:00 and 17:00 to 03:00 during spring and no supplement was involved during the evaluation period. Daily grazing time averaged 508 ± 15min and was not affected by treatment. The reduction of post-grazing sward height increased the length of the first grazing session in the morning and the afternoon. The number of grazing sessions was greater on TL than on TM, with no difference in TC. The number of feeding statio... Mostrar Tudo |
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Thesagro: |
Bovino; Forragem; Pastejo; Vaca Leiteira. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03536naa a2200241 a 4500
001 2136075
005 2021-11-12
008 2021 bl uuuu u00u1 u #d
100 1 $aMENEGAZZI, G.
245 $aEffect of post-grazing sward height on ingestive behavior, dry matter intake, and milk production of Holstein dairy cows.$h[electronic resource]
260 $c2021
520 $aSward height is strongly related to the daily dry matter intake of grazing dairy cows, which consequently determines animal performance. Despite that, few studies have explored the potential to increase milk production by managing post-grazing sward height. An experiment was carried out to evaluate the effect of three defoliation intensities on a Lolium arundinaceum-based pasture on frequency and length of grazing meals and ruminating bouts, daily grazing and ruminating time, feeding stations and patches exploration, and dry matter intake and milk production of dairy cows. The treatments imposed were three different post-grazing sward heights: control (TC), medium (TM), and lax (TL), which were managed with 6, 9, and 12 cm of post-grazing sward heights during autumn and winter, and 9, 12, and 15 cm of post-grazing sward heights during spring, respectively. Thirty-six autumn-calving Holstein cows were grouped by parity (2.6 ± 0.8), body weight (618 ± 48) kg, and body condition score (2.8 ± 0.2) and randomized to the treatments. The pasture was accessed from 08:00 to 14:00 and 17:00 to 03:00 during spring and no supplement was involved during the evaluation period. Daily grazing time averaged 508 ± 15min and was not affected by treatment. The reduction of post-grazing sward height increased the length of the first grazing session in the morning and the afternoon. The number of grazing sessions was greater on TL than on TM, with no difference in TC. The number of feeding stations (the hypothetical semi-circle in front of an animal from which the bites were taken without moving the front forefeet) visited was less on TC than on TL, and neither of them differed from TM. Dry matter (DM) intake was lesser on TC than on TM and TL (14.7 vs. 17.8 kg DM). Milk production during the evaluation period was 13.1, 16.2, and 18.7 kg/day for TC, TM, and TL, respectively. The milk fat, protein, and lactose content did not differ between treatments. The cows on TC exhibited a lower intake rate, although they were less selective, probably as a consequence of the sward structure of TC treatment. The cows on TM adopted a compensation mechanism which allowed them to achieve the same dry matter intake as cows on TL, but lower milk production. The cows on TL were more selective than TC and TM resulting in higher digestible dry matter intake and consequently higher milk production. The intensity of defoliation impacts on the animal-plant interaction, and constitutes a valuable management tool that can be used to boost forage intake and milk production. The new developments on information technology would allow researchers to link behavioral data with response variables (e.g., milk production, health, welfare, etc.) at different spatio-temporal scales and support short and long-term management decisions.
650 $aBovino
650 $aForragem
650 $aPastejo
650 $aVaca Leiteira
700 1 $aYANINA GILES, P.
700 1 $aOBORSKY, M.
700 1 $aFAST, O.
700 1 $aMATTIAUDA, D. A.
700 1 $aGENRO, T. C. M.
700 1 $aCHILIBROSTE, P.
773 $tFrontiers in Animal Science$gv. 2, 742685, Nov 2021.
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Registro original: |
Embrapa Pecuária Sul (CPPSUL) |
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| Registros recuperados : 12 | |
| 1. |  | DUARTE, R. D.; MAZZOCATO, A. C.; BRANCO, V. T. A.; SANTOS, D. da S. dos. Coletas de germoplasma para ampliação da variabilidade do Banco Ativo de Germoplasma de Forrageiras do Sul. In: SALÃO INTERNACIONAL DE ENSINO, EXTENSÃO E PESQUISA, 5., 2013, Bagé. Discussão, participação e cidadania: anais. Bagé: Unipampa, 2013. SIEPE.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 5. | | BRANCO, V. T. A.; SANTOS, D. da S. dos; PÉRES, E. R.; MAZZOCATO, A. C.; FERREIRA, J. L. Caracterização morfológica de acessos de Bromus auleticus e de Paspalum spp. In: SALÃO INTERNACIONAL DE ENSINO, PESQUISA E EXTENSÃO, 4., 2012. Bagé. Compartilhe saberes, vivencie experiências e almeje sustentabilidade: anais. Bagé: Unipampa, 2012. SIEPE. Online.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 6. | | MAZZOCATO, A. C.; ALVES-BRANCO, V. T.; PERES, E. R.; SANTOS, D. da S. dos; SILVEIRA, M. C. T. da. Caracterização morfológica de novos acessos de Bromus auleticus Trin. ex Nees do Banco Ativo de Germoplasma Forrageiras do Sul. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 49., 2012, Brasília. A produção animal no mundo em transformação: anais. Brasília, DF: SBZ, 2012. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 7. | | BRANCO, V. T. A.; MAZZOCATO, A. C.; SANTOS, D. da S. dos; MAIA, M. B.; SILVA, R. D. D. Potencial germinativo de sementes de Bromus spp. do Banco Ativo de Germoplasma Forrageiras do Sul. In: SALÃO INTERNACIONAL DE ENSINO, EXTENSÃO E PESQUISA, 5., 2013, Bagé. Discussão, participação e cidadania: anais. Bagé: Unipampa, 2013. SIEPE.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 8. | | SANTOS, D. da S. dos; BRANCO, V. T. A.; BARRES, A. F.; ARTICO, L. L.; PORTO, C. L.; MAZZOCATO, A. C.; FERREIRA, J. L.; JUCHEM, S. de O. Composição bromatológica de diferentes acessos de Bromus auleticus. In: SIMPÓSIO DE RECURSOS GENÉTICOS PARA A AMÉRICA LATINA E CARIBE, 10., 2015, Bento Gonçalves. Recursos genéticos no século 21: de Vavilov a Svalbard: anais... [S.l.]: Sociedade Brasileira de Recursos Genéticos, 2015. p. 302. Editores técnicos: Rodrigo Cezar Franzon, Caroline Marques Castro, Alexandre Floriani Ramos, Sueli Correa Marques de Mello. SIRGEALC.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 9. | | MAZZOCATO, A. C.; MAIA, M. B.; KOPP, M. M.; BARBACHAN, G. de S.; SILVA, R. D. D.; BRANCO, V. T. A.; SANTOS, D. da S. dos. Coleta de germoplasma de espécies forrageiras nativas para ampliação do herbário CNPO e do Banco Ativo de Germoplasma Forrageiras do Sul como forma de conservação de recursos genéticos nativos do bioma Pampa. Revista Congrega, Bagé, v. 9, n. 9, out. 2013. CONGREGA.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 5 |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 10. | | MAZZOCATO, A. C.; SILVA, R. D. D.; BRANCO, V. T. A.; SANTOS, D. da S. dos; KOPP, M. M.; VALLS, J. F. M. Coleta de germoplasma de espécies forrageiras nativas para conhecimento e verificação do potencial para usos econômicos sustentáveis. In: CONGRESSO NACIONAL DE BOTÂNICA, 64.; ENCONTRO REGIONAL DE BOTANICOS MG, BA E ES, 23., 2013, Belo Horizonte. Anais... Belo Horizonte: SBB, 2013.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 11. | | MAZZOCATO, A. C.; ALVES-BRANCO, V. T.; PERES, E. R.; SILVEIRA, M. C. T. da; MORAES, S. L. de; NUNES, C. L. R.; SANTOS, D. da S. dos. Comparação em relação à forma e função de seis acessos de Bromus auleticus Trin. ex Nees por meio de características morfogênicas e estruturais. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 49., 2012, Brasília. A produção animal no mundo em transformação: anais. Brasília, DF: SBZ, 2012. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 12. | | MAZZOCATO, A. C.; MACARIO, C. G. do N.; ROCHA, P. S. G. da; SANTOS, D. da S. dos; BRANCO, V. T. A.; ZULIANI, A. J. B.; ARTICO, L. L. Herbário CNPO: atualizações da informatização. In: MOSTRA CIENTÍFICA DAS CIÊNCIAS AGRÁRIAS E CIÊNCIAS BIOLÓGICAS, 2., 2015, Erechim. Anais... Erechim: URI, 2015. p. 246.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| Registros recuperados : 12 | |
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