| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sul. Para informações adicionais entre em contato com cppsul.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Pecuária Sul. |
|
Data corrente: |
06/12/2022 |
|
Data da última atualização: |
06/12/2022 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
MARÍN GÓMEZ, A.; LACA, E. A.; BALDISSERA, T. C.; PINTO, C. E.; GARAGORRY, F. C.; ZUBIETA, A. S.; BREMM, C.; BINDELLE, J.; CARVALHO, P. C. de F. |
|
Afiliação: |
ALEJANDRA MARÍN GÓMEZ, Federal University of Rio Grande do Sul; EMILIO A. LACA, University of California; TIAGO CELSO BALDISSERA, EPAGRI; CASSIANO EDUARDO PINTO, EPAGRI; FABIO CERVO GARAGORRY, CPPSUL; ANGEL S. ZUBIETA, Federal University of Rio Grande do Sul; CAROLINA BREMM, Federal University of Rio Grande do Sul; JERÔME BINDELLE, Liège University; PAULO CÉSAR DE FACCIO CARVALHO, Federal University of Rio Grande do Sul. |
|
Título: |
Determining the pre-grazing sward height of Kikuyu grass (Cenchrus clandestinus - Hochst. ex Chiov.) for optimizing nutrient intake rate of dairy heifers. |
|
Ano de publicação: |
2022 |
|
Fonte/Imprenta: |
PLos One, v. 17, n. 7, e0269716, July 2022. |
|
DOI: |
https://doi. org/10.1371/journal.pone.0269716 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Understanding the grazing process and animal response to sward structures (e.g., sward height) is key to setting targets for efficient grazing management. We hypothesized that the short-term intake rate (STIR) of dry matter (DM) and digestible organic matter (OM) by dairy heifers is maximized with Kikuyu grass (Cenchrus clandestinus?Hochst. ex Chiov.) of intermediate sward heights. The treatments consisted of five pre-grazing sward heights (10, 15, 20, 25, and 30 cm) randomly assigned to two of ten paddocks. The experimental design included two measurements of each paddock at different periods and times of day. Three Holstein heifers (440 ± 42 kg body weight) were used to determine the STIR, which was estimated using the double-weighing technique with correction for insensible weight losses. The bite mass (BM), bite rate (BR), sward structural characteristics, and nutritional value of herbage samples were assessed. The data were analyzed using mixed models with a factorial arrangement of five sward heights, two times of day, and two evaluation periods. The sward height of Kikuyu grass that maximized both STIRs was approximately 20 cm. The STIR of the DM was 30% and 15% lower than the maximum in the shortest and tallest swards tested, respectively. In swards shorter than 20 cm, the STIR was lower because the BM decreased with sward height, whereas in those greater than 20 cm, the lower BM and STIR of DM was explained by a decrease in bulk density and bite volume. The top stratum was composed mainly of highly digestible leaf blades with similar nutrient content across sward heights; therefore the STIR of digestible OM was also maximized at 20 cm. Hence, the optimal pre-grazing sward height of Kikuyu grass should be managed at 20 cm under rotational stocking systems to maximize nutrient intake rate of dairy heifers. MenosUnderstanding the grazing process and animal response to sward structures (e.g., sward height) is key to setting targets for efficient grazing management. We hypothesized that the short-term intake rate (STIR) of dry matter (DM) and digestible organic matter (OM) by dairy heifers is maximized with Kikuyu grass (Cenchrus clandestinus?Hochst. ex Chiov.) of intermediate sward heights. The treatments consisted of five pre-grazing sward heights (10, 15, 20, 25, and 30 cm) randomly assigned to two of ten paddocks. The experimental design included two measurements of each paddock at different periods and times of day. Three Holstein heifers (440 ± 42 kg body weight) were used to determine the STIR, which was estimated using the double-weighing technique with correction for insensible weight losses. The bite mass (BM), bite rate (BR), sward structural characteristics, and nutritional value of herbage samples were assessed. The data were analyzed using mixed models with a factorial arrangement of five sward heights, two times of day, and two evaluation periods. The sward height of Kikuyu grass that maximized both STIRs was approximately 20 cm. The STIR of the DM was 30% and 15% lower than the maximum in the shortest and tallest swards tested, respectively. In swards shorter than 20 cm, the STIR was lower because the BM decreased with sward height, whereas in those greater than 20 cm, the lower BM and STIR of DM was explained by a decrease in bulk density and bite volume. The top stra... Mostrar Tudo |
|
Thesagro: |
Gado Leiteiro; Pastagem. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 02663naa a2200253 a 4500
001 2149257
005 2022-12-06
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi. org/10.1371/journal.pone.0269716$2DOI
100 1 $aMARÍN GÓMEZ, A.
245 $aDetermining the pre-grazing sward height of Kikuyu grass (Cenchrus clandestinus - Hochst. ex Chiov.) for optimizing nutrient intake rate of dairy heifers.$h[electronic resource]
260 $c2022
520 $aUnderstanding the grazing process and animal response to sward structures (e.g., sward height) is key to setting targets for efficient grazing management. We hypothesized that the short-term intake rate (STIR) of dry matter (DM) and digestible organic matter (OM) by dairy heifers is maximized with Kikuyu grass (Cenchrus clandestinus?Hochst. ex Chiov.) of intermediate sward heights. The treatments consisted of five pre-grazing sward heights (10, 15, 20, 25, and 30 cm) randomly assigned to two of ten paddocks. The experimental design included two measurements of each paddock at different periods and times of day. Three Holstein heifers (440 ± 42 kg body weight) were used to determine the STIR, which was estimated using the double-weighing technique with correction for insensible weight losses. The bite mass (BM), bite rate (BR), sward structural characteristics, and nutritional value of herbage samples were assessed. The data were analyzed using mixed models with a factorial arrangement of five sward heights, two times of day, and two evaluation periods. The sward height of Kikuyu grass that maximized both STIRs was approximately 20 cm. The STIR of the DM was 30% and 15% lower than the maximum in the shortest and tallest swards tested, respectively. In swards shorter than 20 cm, the STIR was lower because the BM decreased with sward height, whereas in those greater than 20 cm, the lower BM and STIR of DM was explained by a decrease in bulk density and bite volume. The top stratum was composed mainly of highly digestible leaf blades with similar nutrient content across sward heights; therefore the STIR of digestible OM was also maximized at 20 cm. Hence, the optimal pre-grazing sward height of Kikuyu grass should be managed at 20 cm under rotational stocking systems to maximize nutrient intake rate of dairy heifers.
650 $aGado Leiteiro
650 $aPastagem
700 1 $aLACA, E. A.
700 1 $aBALDISSERA, T. C.
700 1 $aPINTO, C. E.
700 1 $aGARAGORRY, F. C.
700 1 $aZUBIETA, A. S.
700 1 $aBREMM, C.
700 1 $aBINDELLE, J.
700 1 $aCARVALHO, P. C. de F.
773 $tPLos One$gv. 17, n. 7, e0269716, July 2022.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Pecuária Sul (CPPSUL) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Hortaliças. |
|
Data corrente: |
11/08/2022 |
|
Data da última atualização: |
12/08/2022 |
|
Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
|
Autoria: |
KINUPP, V. F.; MADEIRA, N. R.; CORADIN, L. |
|
Afiliação: |
VALDELY FERREIRA KINUPP, INSTITUTO FEDERAL DO AMAZONAS; NUNO RODRIGO MADEIRA, CNPH; LIDIO CORADIN, MINISTÉRIO DO MEIO AMBIENTE. |
|
Título: |
Urera caracasana: urtiga. |
|
Ano de publicação: |
2022 |
|
Fonte/Imprenta: |
In: CORADIN, L.; CAMILLO, J.; VIEIRA, I. C. G. (ed.). Espécies nativas da flora brasileira de valor econômico atual ou potencial: plantas para o futuro: região Norte. Brasília, DF: MMA, 2022. |
|
Série: |
(Série Biodiversidade, 53). |
|
Idioma: |
Português |
|
Conteúdo: |
Família. Espécie. Sinonímia. Nomes populares. Características botânicas. Distribuição geográfica. Habitat. Uso econômico atual ou potencial. Partes usadas. Aspectos ecológicos, agronômicos e silviculturais para o cultivo. Propagação. Experiências relevantes com a espécie. Situação de conservação da espécie. Perspectivas e recomendações. |
|
Thesaurus NAL: |
Urera caracasana. |
|
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1145385/1/Cap-LV-MMA-2022-Madeira-Urtiga.pdf
|
|
Marc: |
LEADER 00964naa a2200169 a 4500
001 2145385
005 2022-08-12
008 2022 bl uuuu u00u1 u #d
100 1 $aKINUPP, V. F.
245 $aUrera caracasana$burtiga.$h[electronic resource]
260 $c2022
490 $a(Série Biodiversidade, 53).
520 $aFamília. Espécie. Sinonímia. Nomes populares. Características botânicas. Distribuição geográfica. Habitat. Uso econômico atual ou potencial. Partes usadas. Aspectos ecológicos, agronômicos e silviculturais para o cultivo. Propagação. Experiências relevantes com a espécie. Situação de conservação da espécie. Perspectivas e recomendações.
650 $aUrera caracasana
700 1 $aMADEIRA, N. R.
700 1 $aCORADIN, L.
773 $tIn: CORADIN, L.; CAMILLO, J.; VIEIRA, I. C. G. (ed.). Espécies nativas da flora brasileira de valor econômico atual ou potencial: plantas para o futuro: região Norte. Brasília, DF: MMA, 2022.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Hortaliças (CNPH) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
