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Registro Completo |
Biblioteca(s): |
Embrapa Pecuária Sul. |
Data corrente: |
03/01/2020 |
Data da última atualização: |
03/01/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MENDONÇA, F. S.; MACNEIL, M. D.; LEAL, W. S.; AZAMBUJA, R. C. C.; RODRIGUES, P. F.; CARDOSO, F. F. |
Afiliação: |
Fábio S. Mendonça, UFPEL; Michael D. MacNeil, University of the Free State; Willian S. Leal, UFPEL; Rodrigo C. C. Azambuja, SENAR; Pedro F. Rodrigues, SENAR; FERNANDO FLORES CARDOSO, CPPSUL. |
Título: |
Crossbreeding effects on growth and efficiency in beef cow-calf systems: evaluation of Angus, Caracu, Hereford and Nelore breed direct, maternal and heterosis effects. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
Translational Animal Science, v. 3, n. 4, p. 1286-1295, July 2019. |
Idioma: |
Inglês |
Conteúdo: |
The objective of this study was to determine breed additive and heterosis effects on growth curves, total milk yield (TMY), calf weaning weight (WW), predicted energy intake (EI), and cow efficiency (CE) of purebred and crossbred beef cows raised in Southern Brazil. The data were from 175 purebred and crossbred cows representing eight genetic groups: Angus (A), Hereford (H), Nelore (N), A × H (AH), H × A (HA), A × N (AN), N × A (NA), and Caracu (C) × A (CA). Growth of the cows was modeled using the nonlinear Brody function and machine milking was used to assess TMY. WW was linearly adjusted to 210 d. EI was predicted with an equation in which the independent variables were estimates of parameters of the Brody function and TMY. The ratio of WW to EI estimated CE. Taurine?indicine heterosis effects were significant for all traits, and greater than those for taurine breed crosses. In general, crossbred cows were heavier at maturity, matured earlier, produced more milk, weaned heavier calves, and were predicted to consume more energy. Thus, they were more efficient than purebred cows, despite their greater predicted feed intake. Among the purebreds, A cows matured most rapidly, weighed the least at maturity, produced the most milk, weaned the heaviest calves, were predicted to consume the least energy; and were therefore most efficient among the breeds that were evaluated. These results are useful as inputs to bioeconomic models that can be used to predict productive and economic outcomes from crossbreeding and to facilitate recommendations for beef producers of southern Brazil and other similar subtropical climatic regions. MenosThe objective of this study was to determine breed additive and heterosis effects on growth curves, total milk yield (TMY), calf weaning weight (WW), predicted energy intake (EI), and cow efficiency (CE) of purebred and crossbred beef cows raised in Southern Brazil. The data were from 175 purebred and crossbred cows representing eight genetic groups: Angus (A), Hereford (H), Nelore (N), A × H (AH), H × A (HA), A × N (AN), N × A (NA), and Caracu (C) × A (CA). Growth of the cows was modeled using the nonlinear Brody function and machine milking was used to assess TMY. WW was linearly adjusted to 210 d. EI was predicted with an equation in which the independent variables were estimates of parameters of the Brody function and TMY. The ratio of WW to EI estimated CE. Taurine?indicine heterosis effects were significant for all traits, and greater than those for taurine breed crosses. In general, crossbred cows were heavier at maturity, matured earlier, produced more milk, weaned heavier calves, and were predicted to consume more energy. Thus, they were more efficient than purebred cows, despite their greater predicted feed intake. Among the purebreds, A cows matured most rapidly, weighed the least at maturity, produced the most milk, weaned the heaviest calves, were predicted to consume the least energy; and were therefore most efficient among the breeds that were evaluated. These results are useful as inputs to bioeconomic models that can be used to predict productive and economi... Mostrar Tudo |
Thesagro: |
Bezerro de Corte; Crescimento; Cruzamento; Gado de Corte; Genética Animal. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/208122/1/Mendonca-et-al-Transl-Anim-Sci-2019-1286-1295.pdf
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Marc: |
LEADER 02445naa a2200241 a 4500 001 2118106 005 2020-01-03 008 2019 bl uuuu u00u1 u #d 100 1 $aMENDONÇA, F. S. 245 $aCrossbreeding effects on growth and efficiency in beef cow-calf systems$bevaluation of Angus, Caracu, Hereford and Nelore breed direct, maternal and heterosis effects.$h[electronic resource] 260 $c2019 520 $aThe objective of this study was to determine breed additive and heterosis effects on growth curves, total milk yield (TMY), calf weaning weight (WW), predicted energy intake (EI), and cow efficiency (CE) of purebred and crossbred beef cows raised in Southern Brazil. The data were from 175 purebred and crossbred cows representing eight genetic groups: Angus (A), Hereford (H), Nelore (N), A × H (AH), H × A (HA), A × N (AN), N × A (NA), and Caracu (C) × A (CA). Growth of the cows was modeled using the nonlinear Brody function and machine milking was used to assess TMY. WW was linearly adjusted to 210 d. EI was predicted with an equation in which the independent variables were estimates of parameters of the Brody function and TMY. The ratio of WW to EI estimated CE. Taurine?indicine heterosis effects were significant for all traits, and greater than those for taurine breed crosses. In general, crossbred cows were heavier at maturity, matured earlier, produced more milk, weaned heavier calves, and were predicted to consume more energy. Thus, they were more efficient than purebred cows, despite their greater predicted feed intake. Among the purebreds, A cows matured most rapidly, weighed the least at maturity, produced the most milk, weaned the heaviest calves, were predicted to consume the least energy; and were therefore most efficient among the breeds that were evaluated. These results are useful as inputs to bioeconomic models that can be used to predict productive and economic outcomes from crossbreeding and to facilitate recommendations for beef producers of southern Brazil and other similar subtropical climatic regions. 650 $aBezerro de Corte 650 $aCrescimento 650 $aCruzamento 650 $aGado de Corte 650 $aGenética Animal 700 1 $aMACNEIL, M. D. 700 1 $aLEAL, W. S. 700 1 $aAZAMBUJA, R. C. C. 700 1 $aRODRIGUES, P. F. 700 1 $aCARDOSO, F. F. 773 $tTranslational Animal Science$gv. 3, n. 4, p. 1286-1295, July 2019.
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Registro original: |
Embrapa Pecuária Sul (CPPSUL) |
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Registro Completo
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
14/11/2008 |
Data da última atualização: |
22/08/2022 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
DAMASCENO, I.; CAVALCANTI, P. C.; CAMPOS, D.; ANDRADE, K.; CASTRO, M.; VIANA, R.; VIRGINIO, J. F.; BRANCO, N.; PARANHOS, B. A. J.; MALAVASI. |
Afiliação: |
tala Damasceno, Biofábrica Moscamed; Paulo C. Cavalcanti, Biofábrica Moscamed; Deise Campos, Biofábrica Moscamed; Kandice Andrade, Biofábrica Moscamed; Meire Castro, Biofábrica Moscamed; Rodrigo Viana, Biofábrica Moscamed; Jair F. Virginio, Biofábrica Moscamed; Nuno Branco, Biofábrica Moscamed; BEATRIZ AGUIAR GIORDANO PARANHOS, CPATSA; Aldo Malavasi, Biofábrica Moscamed. |
Título: |
Aerial release of sterile flies using radio-controlled aircraft. |
Ano de publicação: |
2008 |
Fonte/Imprenta: |
In: MEETING OF THE WORKING GROUP ON FRUIT FLIES OF THE WESTERN HEMISPHERE, 7., 2008, Mazatlán Sinaloa, México. Proceedings... Mazatlán Sinaloa, México: SAGARDA: SENASICA: IAEA, 2008. |
Descrição Física: |
1 DVD. |
Idioma: |
Inglês |
Conteúdo: |
The objective was to evaluate the use of RC aircraft as releasing method and determine the distribution pattern, recapture rate and survivorship in the field. |
Palavras-Chave: |
Ceratites capitata; Distribuição; Inseto estéril; Moscamed. |
Thesagro: |
Captura; Ceratitis Capitata; Usina. |
Thesaurus NAL: |
Insects; Power plants. |
Categoria do assunto: |
O Insetos e Entomologia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPATSA-2009-09/39620/1/OPB2042.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPATSA-2009-09/39619/1/OPB2041.pdf
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Marc: |
LEADER 01152ngm a2200337 a 4500 001 1161544 005 2022-08-22 008 2008 bl uuuu u00u1 u #d 100 1 $aDAMASCENO, I. 245 $aAerial release of sterile flies using radio-controlled aircraft. 260 $aIn: MEETING OF THE WORKING GROUP ON FRUIT FLIES OF THE WESTERN HEMISPHERE, 7., 2008, Mazatlán Sinaloa, México. Proceedings... Mazatlán Sinaloa, México: SAGARDA: SENASICA: IAEA$c2008 300 $c1 DVD. 520 $aThe objective was to evaluate the use of RC aircraft as releasing method and determine the distribution pattern, recapture rate and survivorship in the field. 650 $aInsects 650 $aPower plants 650 $aCaptura 650 $aCeratitis Capitata 650 $aUsina 653 $aCeratites capitata 653 $aDistribuição 653 $aInseto estéril 653 $aMoscamed 700 1 $aCAVALCANTI, P. C. 700 1 $aCAMPOS, D. 700 1 $aANDRADE, K. 700 1 $aCASTRO, M. 700 1 $aVIANA, R. 700 1 $aVIRGINIO, J. F. 700 1 $aBRANCO, N. 700 1 $aPARANHOS, B. A. J. 700 1 $aMALAVASI.
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Embrapa Semiárido (CPATSA) |
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