Effects of different supplements on performance of steers grazing Mombaça guineagrass (Megathyrsus maximus) during the dry period.

Detalhes bibliográficos
Autor(a) principal: SILVA, C. S.
Data de Publicação: 2021
Outros Autores: EUCLIDES, V. P. B., MONTAGNER, D. B., ARAÚJO, I. M. M. de, DIFANTE, G. dos S., ORRICO JUNIOR, M. A. P.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1149507
Resumo: ABSTRACT - To mitigate the low animal performance on Mombaça guineagrass pasture during the dry period, feeding 2 types of supplement to 2 genetic groups was evaluated. The experimental design was a randomized block design following a 2 × 2 factorial arrangement with 4 replications. The treatments consisted of feeding 2 levels of supplement (0.25 and 1.0% of body weight; BW), named low-cost supplement (LCS; US$ 11.75/steer) and high-cost supplement (HCS; US$ 62.80/steer), respectively, for 130 days (July–October; dry season) to 2 genetic groups: Caracu and F1 Senepol × Caracu. The steers were supplemented daily and weighed every 28 days. Pastures were evaluated monthly to estimate the herbage accumulation rate, herbage mass (HM), leaf, stem and dead material percentages and nutritive value. HM, morphological components and nutritive value were independent of supplement type fed (P>0.05). There were decreases in HM (3,720 to 3,205 kg DM/ha), daily herbage allowance (14.0 to 9.4 kg DM/100 kg BW) and leaf percentage (33.4 to 21.2%) and increase in dead material percentage (53.3 to 67.7%) throughout the experimental period. In vitro organic matter digestibility (59.9%), crude protein concentration (10.0%), neutral detergent fiber (72.1%) and acid detergent lignin (2.9%) remained constant from July to September but increased markedly in October. Steers supplemented with HCS performed better (P<0.05) than those which received LCS (1.005 vs. 0.565 kg liveweight gain/head/day, respectively). Regardless of supplement type, F1 Senepol × Caracu steers had greater average daily gains than pure Caracu steers (0.88 vs. 0.71 kg/hd/d, respectively). Feeding HCS to steers in the dry season would produce better performance than LCS and could reduce time to reach slaughter weight but weight changes during the subsequent wet season should be monitored to assess the extent of any compensatory gain by the low-cost group during this period to reduce the weight advantage of the high-cost group.
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spelling Effects of different supplements on performance of steers grazing Mombaça guineagrass (Megathyrsus maximus) during the dry period.Efectos de diferentes suplementos en el rendimiento de novillos que pastorean guinea Mombasa (Megathyrsus maximus) durante el período seco.Bos TaurusSecaValor NutritivoDry seasonForage productionMegathyrsus maximusNutritive valueSteersTropical pasturesABSTRACT - To mitigate the low animal performance on Mombaça guineagrass pasture during the dry period, feeding 2 types of supplement to 2 genetic groups was evaluated. The experimental design was a randomized block design following a 2 × 2 factorial arrangement with 4 replications. The treatments consisted of feeding 2 levels of supplement (0.25 and 1.0% of body weight; BW), named low-cost supplement (LCS; US$ 11.75/steer) and high-cost supplement (HCS; US$ 62.80/steer), respectively, for 130 days (July–October; dry season) to 2 genetic groups: Caracu and F1 Senepol × Caracu. The steers were supplemented daily and weighed every 28 days. Pastures were evaluated monthly to estimate the herbage accumulation rate, herbage mass (HM), leaf, stem and dead material percentages and nutritive value. HM, morphological components and nutritive value were independent of supplement type fed (P>0.05). There were decreases in HM (3,720 to 3,205 kg DM/ha), daily herbage allowance (14.0 to 9.4 kg DM/100 kg BW) and leaf percentage (33.4 to 21.2%) and increase in dead material percentage (53.3 to 67.7%) throughout the experimental period. In vitro organic matter digestibility (59.9%), crude protein concentration (10.0%), neutral detergent fiber (72.1%) and acid detergent lignin (2.9%) remained constant from July to September but increased markedly in October. Steers supplemented with HCS performed better (P<0.05) than those which received LCS (1.005 vs. 0.565 kg liveweight gain/head/day, respectively). Regardless of supplement type, F1 Senepol × Caracu steers had greater average daily gains than pure Caracu steers (0.88 vs. 0.71 kg/hd/d, respectively). Feeding HCS to steers in the dry season would produce better performance than LCS and could reduce time to reach slaughter weight but weight changes during the subsequent wet season should be monitored to assess the extent of any compensatory gain by the low-cost group during this period to reduce the weight advantage of the high-cost group.CAMILE SANCHES SILVA, UNIVERSIDADE FEDERAL DA GRANDE DOURADOS; VALERIA PACHECO BATISTA EUCLIDES, CNPGC; DENISE BAPTAGLIN MONTAGNER, CNPGC; ITÂNIA MARIA MEDEIROS DE ARAÚJO, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL; GELSON DOS SANTOS DIFANTE, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL; MARCO ANTONIO PREVIDELLI ORRICO JÚNIOR, UNIVERSIDADE FEDERAL DA GRANDE DOURADOS.SILVA, C. S.EUCLIDES, V. P. B.MONTAGNER, D. B.ARAÚJO, I. M. M. deDIFANTE, G. dos S.ORRICO JUNIOR, M. A. P.2022-12-12T19:01:25Z2022-12-12T19:01:25Z2022-12-122021info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleTropical Grasslands-Forrajes Tropicales, v. 10, n. 1, p. 44-51, 2021.http://www.alice.cnptia.embrapa.br/alice/handle/doc/114950710.17138/TGFT(10)44-51enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2022-12-12T19:01:25Zoai:www.alice.cnptia.embrapa.br:doc/1149507Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542022-12-12T19:01:25falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542022-12-12T19:01:25Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Effects of different supplements on performance of steers grazing Mombaça guineagrass (Megathyrsus maximus) during the dry period.
Efectos de diferentes suplementos en el rendimiento de novillos que pastorean guinea Mombasa (Megathyrsus maximus) durante el período seco.
title Effects of different supplements on performance of steers grazing Mombaça guineagrass (Megathyrsus maximus) during the dry period.
spellingShingle Effects of different supplements on performance of steers grazing Mombaça guineagrass (Megathyrsus maximus) during the dry period.
SILVA, C. S.
Bos Taurus
Seca
Valor Nutritivo
Dry season
Forage production
Megathyrsus maximus
Nutritive value
Steers
Tropical pastures
title_short Effects of different supplements on performance of steers grazing Mombaça guineagrass (Megathyrsus maximus) during the dry period.
title_full Effects of different supplements on performance of steers grazing Mombaça guineagrass (Megathyrsus maximus) during the dry period.
title_fullStr Effects of different supplements on performance of steers grazing Mombaça guineagrass (Megathyrsus maximus) during the dry period.
title_full_unstemmed Effects of different supplements on performance of steers grazing Mombaça guineagrass (Megathyrsus maximus) during the dry period.
title_sort Effects of different supplements on performance of steers grazing Mombaça guineagrass (Megathyrsus maximus) during the dry period.
author SILVA, C. S.
author_facet SILVA, C. S.
EUCLIDES, V. P. B.
MONTAGNER, D. B.
ARAÚJO, I. M. M. de
DIFANTE, G. dos S.
ORRICO JUNIOR, M. A. P.
author_role author
author2 EUCLIDES, V. P. B.
MONTAGNER, D. B.
ARAÚJO, I. M. M. de
DIFANTE, G. dos S.
ORRICO JUNIOR, M. A. P.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv CAMILE SANCHES SILVA, UNIVERSIDADE FEDERAL DA GRANDE DOURADOS; VALERIA PACHECO BATISTA EUCLIDES, CNPGC; DENISE BAPTAGLIN MONTAGNER, CNPGC; ITÂNIA MARIA MEDEIROS DE ARAÚJO, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL; GELSON DOS SANTOS DIFANTE, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL; MARCO ANTONIO PREVIDELLI ORRICO JÚNIOR, UNIVERSIDADE FEDERAL DA GRANDE DOURADOS.
dc.contributor.author.fl_str_mv SILVA, C. S.
EUCLIDES, V. P. B.
MONTAGNER, D. B.
ARAÚJO, I. M. M. de
DIFANTE, G. dos S.
ORRICO JUNIOR, M. A. P.
dc.subject.por.fl_str_mv Bos Taurus
Seca
Valor Nutritivo
Dry season
Forage production
Megathyrsus maximus
Nutritive value
Steers
Tropical pastures
topic Bos Taurus
Seca
Valor Nutritivo
Dry season
Forage production
Megathyrsus maximus
Nutritive value
Steers
Tropical pastures
description ABSTRACT - To mitigate the low animal performance on Mombaça guineagrass pasture during the dry period, feeding 2 types of supplement to 2 genetic groups was evaluated. The experimental design was a randomized block design following a 2 × 2 factorial arrangement with 4 replications. The treatments consisted of feeding 2 levels of supplement (0.25 and 1.0% of body weight; BW), named low-cost supplement (LCS; US$ 11.75/steer) and high-cost supplement (HCS; US$ 62.80/steer), respectively, for 130 days (July–October; dry season) to 2 genetic groups: Caracu and F1 Senepol × Caracu. The steers were supplemented daily and weighed every 28 days. Pastures were evaluated monthly to estimate the herbage accumulation rate, herbage mass (HM), leaf, stem and dead material percentages and nutritive value. HM, morphological components and nutritive value were independent of supplement type fed (P>0.05). There were decreases in HM (3,720 to 3,205 kg DM/ha), daily herbage allowance (14.0 to 9.4 kg DM/100 kg BW) and leaf percentage (33.4 to 21.2%) and increase in dead material percentage (53.3 to 67.7%) throughout the experimental period. In vitro organic matter digestibility (59.9%), crude protein concentration (10.0%), neutral detergent fiber (72.1%) and acid detergent lignin (2.9%) remained constant from July to September but increased markedly in October. Steers supplemented with HCS performed better (P<0.05) than those which received LCS (1.005 vs. 0.565 kg liveweight gain/head/day, respectively). Regardless of supplement type, F1 Senepol × Caracu steers had greater average daily gains than pure Caracu steers (0.88 vs. 0.71 kg/hd/d, respectively). Feeding HCS to steers in the dry season would produce better performance than LCS and could reduce time to reach slaughter weight but weight changes during the subsequent wet season should be monitored to assess the extent of any compensatory gain by the low-cost group during this period to reduce the weight advantage of the high-cost group.
publishDate 2021
dc.date.none.fl_str_mv 2021
2022-12-12T19:01:25Z
2022-12-12T19:01:25Z
2022-12-12
dc.type.driver.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Tropical Grasslands-Forrajes Tropicales, v. 10, n. 1, p. 44-51, 2021.
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1149507
10.17138/TGFT(10)44-51
identifier_str_mv Tropical Grasslands-Forrajes Tropicales, v. 10, n. 1, p. 44-51, 2021.
10.17138/TGFT(10)44-51
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/1149507
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
collection Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
repository.name.fl_str_mv Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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