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| Registros recuperados : 16 | |
| 10. |  | SOUZA, V. L. de; NEVES, P. M. A.; ANDRADE, J. de S.; SILVA, G. M. da; OLIVEIRA JÚNIOR, J. S. de; PFEIFER, L. F. M. Efeito do cio associado a cinética espermática na fertilidade de vacas submetidas a um protocolo de inseminação artificial em tempo fixo. In: ENCONTRO DE INICIAÇÃO À PESQUISA DA EMBRAPA RONDÔNIA, 10.; ENCONTRO DE PÓS-GRADUAÇÃO DA EMBRAPA RONDÔNIA, 5., 2019, Porto Velho. Anais... Porto Velho, RO: Embrapa Rondônia, 2019. p. 16.| Biblioteca(s): Embrapa Rondônia. |
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| 11. | | LIMA, R. A. de; NEVES, P. M. A.; MELO, V. T. O. de; SILVA, G. M. da; SILVA, K. A. da; PFEIFER, L. F. M. How body condition score affects milk production and the metabolic parameters in postpartum crossbred dairy cows raised in Amazon biome? Research, Society and Development, v. 11, n. 6, e28511628970, 2022.| Biblioteca(s): Embrapa Rondônia. |
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| 12. | | FAGUNDES, E. da S.; NEVES, P. M. A.; SILVA, G. M. da; NUNES, V. R. R.; SOUZA, V. L. de; PFEIFER, L. F. M. Relação do grau de acabamento com as perdas pós-resfriamento de carcaças e com o ângulo da garupa em bovinos. In: ENCONTRO DE INICIAÇÃO À PESQUISA DA EMBRAPA RONDÔNIA, 10.; ENCONTRO DE PÓS-GRADUAÇÃO DA EMBRAPA RONDÔNIA, 5., 2019, Porto Velho. Anais... Porto Velho, RO: Embrapa Rondônia, 2019. p. 21.| Biblioteca(s): Embrapa Rondônia. |
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| 13. | | FAGUNDES, E. da S.; SILVA, G. M. da; NEVES, P. M. A.; SOUZA, V. L. de; NUNES, V. R. R.; PFEIFER, L. F. M. Relação entre fertilidade e resposta ovariana de vacas submetidas a protocolo de IATF. In: ENCONTRO DE INICIAÇÃO À PESQUISA DA EMBRAPA RONDÔNIA, 10.; ENCONTRO DE PÓS-GRADUAÇÃO DA EMBRAPA RONDÔNIA, 5., 2019, Porto Velho. Anais... Porto Velho, RO: Embrapa Rondônia, 2019. p. 22.| Biblioteca(s): Embrapa Rondônia. |
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| 14. | | PFEIFER, L. F. M.; MOREIRA, E. M.; SILVA, G. M. da; SOUZA, V. L. de; NUNES, V. R. R.; ANDRADE, J. de S.; NEVES, P. M. A.; FERREIRA, R. Effect of estradiol cypionate on estrus expression and pregnancy in timed artificially inseminated beef cows. Livestock Science, v. 231, 103886, 2020.| Biblioteca(s): Embrapa Rondônia. |
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| 15. | | NUNES, V. R. R.; MOREIRA, E. M.; SILVA, G. M. da; NEVES, P. M. A.; SOUZA, V. L. de; ANDRADE, J. de S.; SANTOS, I. A. P.; PFEIFER, L. F. M. Impact of supplementation during the rainy and dry seasons on ovarian responses in Girolando cows. In: CONGRESSO INTERNACIONAL DE PECUÁRIA LEITEIRA DA AMAZÔNIA OCIDENTAL, 1., 2019, Rio Branco, AC. Anais... Rio Branco, AC: Edufac, 2019. p. 67.| Biblioteca(s): Embrapa Rondônia. |
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| 16. | | PFEIFER, L. F. M.; ANDRADE, J. de S.; MOREIRA, E. M.; SILVA, R. R. da; NEVES, P. M. A.; SILVA, G. M. da S.; LEMOS, I. C.; SCHNEIDER, A. Uterine inflammation and fertility of beef cows subjected to timed AI at different days postpartum. Animal Reproduction Science, v. 197, p. 268-277, 2018.| Biblioteca(s): Embrapa Rondônia. |
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| Registros recuperados : 16 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite; Embrapa Rondônia. |
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Data corrente: |
09/02/2017 |
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Data da última atualização: |
09/02/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
PFEIFER, L. F. M.; CASTRO, N. A.; NEVES, P. M. A.; CESTARO, J. P.; SIQUEIRA, L. G. B. |
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Afiliação: |
LUIZ FRANCISCO MACHADO PFEIFER, CPAF-Rondonia; Natália A. Castro, UFPel; Paulo M.A. Neves, FIMCA; Jamyle P. Cestaro, FIMCA; LUIZ GUSTAVO BRUNO SIQUEIRA, CNPGL. |
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Título: |
Development and validation of an objective method for the assessment of body condition scores and selection of beef cows for timed artificial insemination. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Livestock Science, v. 197, p. 82-87, 2017. |
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Idioma: |
Inglês |
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Conteúdo: |
The objectives of this study were to: 1) evaluate the relationship of the angle formed between the left and right sides of the rump with body condition score (BCS) in cattle; and 2) develop an objective tool to select cows for timed artificial insemination (TAI) based on their BCS. In Experiment 1, 801 lactating Nelore cows, 3?12 years old and weighing 400?625 kg were enrolled. All females were evaluated according to BCS (scale 1?5). In addition, the angle formed between both sides of the rump was measured in all cows with a goniometer. The relationship between BCS and the rump angle was analyzed by linear regression. There was a positive relationship between BCS and rump angle (P<0.0001). The linear regression equation was angle =77.76+9.94 x BCS; R2=0.67. The aim of Experiment 2 was to evaluate BCS in a simple, direct and objective way using rump angle and related BCS to TAI performance. A device was developed called Vetscore® to determine BCS according to rump angle. Using the Vetscore, cows were classified into three different categories of BCS using a color-based method: red, BCS<2.75; green, BCS between 2.75 and 4.5; and yellow, BCS>4.5. A total of 429 Nelore suckling cows, 4?8 years old, were subjected to a TAI protocol based on estradiol benzoate, exogenous progesterone, prostaglandin F2α, equine chorionic gonadotropin and estradiol cypionate. At Day 0, all cows were evaluated with the Vetscore® and classified according to the device's BCS color scale. Pregnancy diagnosis was performed by ultrasonography 30 d after TAI. Pregnancy per AI (P/AI) was analyzed using the chi-square test. A good level of agreement was observed between Vetscore's scale and visual BCS (82.9%). Cows classified as ?green? had higher P/AI than cows classified as ?red? and ?yellow? (60.4%, 168 of 278; 42.4%, 61 of 144; and 28.6%, 2 of 7; respectively; P<0.001). These results demonstrate that Vetscore® is an efficient and low-cost methodology for the assessment of BCS and, indirectly, nutritional status of beef cows. Finally, cows classified as adequate according to Vetscore® color scale had higher P/AI at 30 d compared with those considered inadequate. MenosThe objectives of this study were to: 1) evaluate the relationship of the angle formed between the left and right sides of the rump with body condition score (BCS) in cattle; and 2) develop an objective tool to select cows for timed artificial insemination (TAI) based on their BCS. In Experiment 1, 801 lactating Nelore cows, 3?12 years old and weighing 400?625 kg were enrolled. All females were evaluated according to BCS (scale 1?5). In addition, the angle formed between both sides of the rump was measured in all cows with a goniometer. The relationship between BCS and the rump angle was analyzed by linear regression. There was a positive relationship between BCS and rump angle (P<0.0001). The linear regression equation was angle =77.76+9.94 x BCS; R2=0.67. The aim of Experiment 2 was to evaluate BCS in a simple, direct and objective way using rump angle and related BCS to TAI performance. A device was developed called Vetscore® to determine BCS according to rump angle. Using the Vetscore, cows were classified into three different categories of BCS using a color-based method: red, BCS<2.75; green, BCS between 2.75 and 4.5; and yellow, BCS>4.5. A total of 429 Nelore suckling cows, 4?8 years old, were subjected to a TAI protocol based on estradiol benzoate, exogenous progesterone, prostaglandin F2α, equine chorionic gonadotropin and estradiol cypionate. At Day 0, all cows were evaluated with the Vetscore® and classified according to the device's BCS color scale. Pregnancy... Mostrar Tudo |
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Palavras-Chave: |
Fertility; Gravidez; Inseminação artificial cronometrada; Timed artificial insemination. |
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Thesagro: |
Condição Corporal; Fertilidade. |
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Thesaurus NAL: |
body condition; cattle; pregnancy. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/155103/1/PFEIFER-etal-LivSci-Vetscore.pdf
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|
Marc: |
LEADER 03057naa a2200277 a 4500
001 2063261
005 2017-02-09
008 2017 bl uuuu u00u1 u #d
100 1 $aPFEIFER, L. F. M.
245 $aDevelopment and validation of an objective method for the assessment of body condition scores and selection of beef cows for timed artificial insemination.$h[electronic resource]
260 $c2017
520 $aThe objectives of this study were to: 1) evaluate the relationship of the angle formed between the left and right sides of the rump with body condition score (BCS) in cattle; and 2) develop an objective tool to select cows for timed artificial insemination (TAI) based on their BCS. In Experiment 1, 801 lactating Nelore cows, 3?12 years old and weighing 400?625 kg were enrolled. All females were evaluated according to BCS (scale 1?5). In addition, the angle formed between both sides of the rump was measured in all cows with a goniometer. The relationship between BCS and the rump angle was analyzed by linear regression. There was a positive relationship between BCS and rump angle (P<0.0001). The linear regression equation was angle =77.76+9.94 x BCS; R2=0.67. The aim of Experiment 2 was to evaluate BCS in a simple, direct and objective way using rump angle and related BCS to TAI performance. A device was developed called Vetscore® to determine BCS according to rump angle. Using the Vetscore, cows were classified into three different categories of BCS using a color-based method: red, BCS<2.75; green, BCS between 2.75 and 4.5; and yellow, BCS>4.5. A total of 429 Nelore suckling cows, 4?8 years old, were subjected to a TAI protocol based on estradiol benzoate, exogenous progesterone, prostaglandin F2α, equine chorionic gonadotropin and estradiol cypionate. At Day 0, all cows were evaluated with the Vetscore® and classified according to the device's BCS color scale. Pregnancy diagnosis was performed by ultrasonography 30 d after TAI. Pregnancy per AI (P/AI) was analyzed using the chi-square test. A good level of agreement was observed between Vetscore's scale and visual BCS (82.9%). Cows classified as ?green? had higher P/AI than cows classified as ?red? and ?yellow? (60.4%, 168 of 278; 42.4%, 61 of 144; and 28.6%, 2 of 7; respectively; P<0.001). These results demonstrate that Vetscore® is an efficient and low-cost methodology for the assessment of BCS and, indirectly, nutritional status of beef cows. Finally, cows classified as adequate according to Vetscore® color scale had higher P/AI at 30 d compared with those considered inadequate.
650 $abody condition
650 $acattle
650 $apregnancy
650 $aCondição Corporal
650 $aFertilidade
653 $aFertility
653 $aGravidez
653 $aInseminação artificial cronometrada
653 $aTimed artificial insemination
700 1 $aCASTRO, N. A.
700 1 $aNEVES, P. M. A.
700 1 $aCESTARO, J. P.
700 1 $aSIQUEIRA, L. G. B.
773 $tLivestock Science$gv. 197, p. 82-87, 2017.
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