| |
|
|
| Registros recuperados : 53 | |
| 21. |  | MASCARIN, G. M.; LOPES, R. B.; DELALIBERA JUNIOR, Í.; FERNANDES, E. K. K.; LUZ, C.; FARIA, M. R. de. Current status and perspectives of fungal entomopathogens used for microbial control of arthropod pests in Brazil. Journal of Invertebrate Pathology, v. 165, p. 46-53, 2019. Na publicação: Ítalo Delalibera Jr., Marcos Faria.| Biblioteca(s): Embrapa Meio Ambiente; Embrapa Recursos Genéticos e Biotecnologia. |
|    |
| 22. | | LUZ, C. da; SILVA, D. A. da; CALHEIROS, I. A. da C.; LIMA, A. B. A. de. COMUT na biblioteca da Embrapa Soja. In: JORNADA ACADÊMICA DA EMBRAPA SOJA, 5., 2010, Londrina. Resumos... Londrina: Embrapa Soja, 2010. p. 41-43. (Embrapa Soja. Documentos, 323). Editado por Odilon Ferreira Saraiva, Paula Geron Saiz Melo.| Biblioteca(s): Embrapa Soja. |
|  |
| 26. | | LOPES, R. B.; SOUZA, D. A. de; ROCHA, L. F. N.; MONTALVA, C.; LUZ, C.; HUMBER, R. A.; FARIA, M. Metarhizium alvesii sp. nov.: a new member of the Metarhizium anisopliae species complex. Journal of Invertebrate Pathology, v. 151, p. 165-168, 2018.| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
| |
| 28. | | MARTINEZ, J. M.; RODRIGUES, J.; MARRETO, R. N.; MASCARIN, G. M.; FERNANDES, E. K. K.; HUMBER, R. A.; LUZ, C. Efficacy of focal applications of a mycoinsecticide to control Aedes aegypti in Central Brazil. Applied Microbiology and Biotechnology, v. 105, n. 23, p. 8702-8714, 2021.| Biblioteca(s): Embrapa Meio Ambiente. |
| |
| 32. | | MONTALVA, C.; COLLIER, K.; ROCHA, L. F. N.; INGLIS, P. W.; LOPES, R. B.; LUZ, C.; HUMBER, R. A. A natural fungal infection of a sylvatic cockroach with Metarhizium blattodeae sp. nov., a member of the M. flavoviride species complex. Fungal Biology, v. 120, n. 5, p. 655-665, 2016.| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
| |
| 34. | | MORELLO, C. de L.; SUASSUNA, N. D.; FREIRE, E. C.; BEZERRA, W.; LUZ, C. M. da; COUTINHO, W. M. Resistência à doenças em linhagens de algodoeiro desenvolvidas para condições de Cerrado. In: CONGRESSO BRASILEIRO DO ALGODÃO, 6., 2007, Uberlândia. Resumos... Uberlândia, 2007. p. 1-7 1 CD-ROM| Biblioteca(s): Embrapa Algodão. |
| |
| 35. | | PAIXÃO, F. R. S.; MUNIZ, E. R.; BARRETO, L. P.; BERNARDO, C. C.; MASCARIN, G. M.; LUZ, C.; FERNANDES, E. K. K. Increased heat tolerance afforded by oil-based conidial formulations of Metarhizium anisopliae and Metarhizium robertsii. Biocontrol Science and Technology, v. 27, n. 3, p. 324-337, 2017.| Biblioteca(s): Embrapa Arroz e Feijão. |
| |
| 36. | | LUZ, C. M. da; AMORIM, H. C. A.; BARROS, A. P. O. de; K. C.; FERNANDES, M. F.; MICHEREF, S. J. Atividade saprofítica de Rhizoctonia em solos do Nordeste brasileiro e relação com propriedades físicas, químicas e microbiológicas. Research, Society and Development, v. 11, n. 3, e34311326477, 2022.| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
| |
| 37. | | LUZ, C.; ROCHA, L. F. N.; MONTALVA, C.; SOUZA, D. A. de; BOTELHO, A. B. R. Z.; LOPES, R. B.; FARIA, M. R. de; DELALIBERA JUNIOR, I. Metarhizium humberi sp. nov. (Hypocreales: Clavicipitaceae), a new member of the PARB clade in the Metarhizium anisopliae complex from Latin America. Journal of Invertebrate Pathology, v. 166, article 107216, 2019. Na publicação: Daniela A. Souza, Marcos Faria.| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
| |
| 38. | | PAIXÃO, F. R. S. da; MUNIZ, E. R.; CATÃO, A. M. L.; SANTOS, T. R.; LUZ, C.; MARRETO, R. N.; MASCARIN, G. M.; FERNANDES, É. K. K. Microsclerotial pellets of Metarhizium spp.: thermotolerance and bioefficacy against the cattle tick. Applied Microbiology and Biotechnology, v. 107, n. 7-8, p. 2263-2275, 2023.| Biblioteca(s): Embrapa Meio Ambiente. |
| |
| 39. | | VIVAN, G. A.; BARBOZA, F. da S.; LUZ, M. L. G. S. da; LUZ, C. A. S. da; PEREIRA-RAMIREZ, O.; GOMES, M. C.; SOARES, F. C. Estudo técnico e econômico de um sistema móvel de extração de óleo essencial de eucalipto. Cerne, Lavras, v. 17, n. 1, p. 23-31, jan./mar. 2011.| Biblioteca(s): Embrapa Florestas. |
| |
| 40. | | LUZ, C. F. P. da; SILVA, L. M. da; CORRÊA, A. M. da S.; OLIVEIRA, G. C. X.; NOGUEIRA, N.; ROSSI, M. L. Ultra-estrutura do pólen de etnovariedades de batata-doce. In: SIMPÓSIO DE PALEOBOTÂNICOS E PALINÓLOGOS, 12., 2008, Florianópolis. Boletim de resumos... Porto Alegre: UFRGS, 2008. 1 p.| Biblioteca(s): Embrapa Acre. |
| |
| Registros recuperados : 53 | |
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Gado de Leite. |
|
Data corrente: |
01/09/2023 |
|
Data da última atualização: |
01/09/2023 |
|
Tipo da produção científica: |
Orientação de Tese de Pós-Graduação |
|
Autoria: |
ORTEGA, E. R. M. |
|
Afiliação: |
ESTERLIN RAFAEL MORENO ORTEGA. |
|
Título: |
Comportamento durante a expressão de estro de vacas holandesas de alta produção em sistema ?Compost Barn túnel de vento?. |
|
Ano de publicação: |
2022 |
|
Fonte/Imprenta: |
2022. |
|
Páginas: |
65 f. |
|
Idioma: |
Português |
|
Notas: |
Dissertação (Mestrado em Ciências Veterinárias) - Universidade Federal de Lavras, Lavras, 2022.
Coorientador: Luiz Gustavo Bruno Siqueira. |
|
Conteúdo: |
This study was carried out to characterize the behavior during synchronized estrus of high-producing dairy cows housed in a wind tunnel Compost Barn. Additionally, the objective was to determine which environmental, physiological, and productive variables have a greater effect on the expression of estrus in these animals. The experiment was carried out in a wind tunnel Compost Barn installation, at the José Henrique Bruschi Experimental Station, EMBRAPA ? Gado de Leite, Coronel Pacheco, MG, Brazil. Thirty-five cows with 128 ±74 days in milk (DIM) and a voluntary waiting period (VWP) of 45 days were selected. Cows were placed under a fixed-time artificial insemination (FTAI) protocol based on intravaginal devices containing 1.9 g of progesterone (P4), and injection of buserelin acetate (GnRH), cloprostenol sodium, and estradiol cypionate. Auxiliary tools (electronic activity-monitoring cervical collars, video cameras, and marker sticks) were used to aid in estrus detection. The estrus behavior was observed from 24 hours after the removal of the P4 intravaginal device until the end of estrus. The environmental variables (temperature, relative humidity, temperature and humidity index - THI, wind speed, and humidity and temperature of the bedding material), physiological variables (rectal temperature - RT and respiratory rate - RR), and productive variables (milk production and DIM) were measured from the day of intravaginal device removal until the day of estrus. The duration of estrus by visual observation aided by video cameras was 12.8 ± 1.6 h, and by activity-monitoring cervical collars was 20.6 ± 3.9 h, without correlation (r = 0.12, P > 0.05) between these methods. However, considering the interval from the removal of the intravaginal P4 device to the onset of estrus, there was a correlation (r = 0.53, P < 0.05) between these two detection methods. Regarding the intensity of estrus, the behaviors more observed were mounting acceptance (37.9 ± 6.7, 22.4%), attempting to mount from behind (54.5 ± 9.3, 32.2%), and head-to-head (46.6 ± 10.6, 27.6%). As for the distribution of these three behaviors, they were mostly concentrated in the interval from 11:01 am to 5:00 pm. Regarding the physiological variables during estrus expression, RT of 38.8 ± 0.3 °C and RR of 50.4 ± 4.4 breaths per minute were found. Regarding the environmental variables during estrus expression, the ambient temperature of 18.2 ± 2.0 °C, relative humidity of 88.0 ± 1.5 %, THI of 64.0 ± 3.1, wind speed of 2.0 ± 0.1 m/s, humidity and temperature of bedding material of 50.1 ± 0.3% and 49.0 ±1.3 °C, respectively, were observed. The average milk production was 36.7 ± 7.2 liters. When applying the stepwise regression analysis, the determinant variables of estrus expression were wind speed and bedding material moisture. In conclusion, the environmental variables remained stable during the experiment, which allowed the stabilization of the physiological variables. This resulted in the duration and intensity of estrus behavior that favored its observation. MenosThis study was carried out to characterize the behavior during synchronized estrus of high-producing dairy cows housed in a wind tunnel Compost Barn. Additionally, the objective was to determine which environmental, physiological, and productive variables have a greater effect on the expression of estrus in these animals. The experiment was carried out in a wind tunnel Compost Barn installation, at the José Henrique Bruschi Experimental Station, EMBRAPA ? Gado de Leite, Coronel Pacheco, MG, Brazil. Thirty-five cows with 128 ±74 days in milk (DIM) and a voluntary waiting period (VWP) of 45 days were selected. Cows were placed under a fixed-time artificial insemination (FTAI) protocol based on intravaginal devices containing 1.9 g of progesterone (P4), and injection of buserelin acetate (GnRH), cloprostenol sodium, and estradiol cypionate. Auxiliary tools (electronic activity-monitoring cervical collars, video cameras, and marker sticks) were used to aid in estrus detection. The estrus behavior was observed from 24 hours after the removal of the P4 intravaginal device until the end of estrus. The environmental variables (temperature, relative humidity, temperature and humidity index - THI, wind speed, and humidity and temperature of the bedding material), physiological variables (rectal temperature - RT and respiratory rate - RR), and productive variables (milk production and DIM) were measured from the day of intravaginal device removal until the day of estrus. The duration o... Mostrar Tudo |
|
Palavras-Chave: |
Estrous behavior; Índice de temperatura e umidade; THI. |
|
Thesagro: |
Bem-Estar; Bovino; Comportamento Animal; Gado Leiteiro; Vaca Leiteira. |
|
Thesaurus NAL: |
Animal behavior; Animal welfare; Dairy cows. |
|
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1156300/1/Dissertacao-Esterlin-Rafael-Coorientador-Luiz-Gustavo-Siqueira.pdf
|
|
Marc: |
LEADER 03977nam a2200265 a 4500
001 2156300
005 2023-09-01
008 2022 bl uuuu m 00u1 u #d
100 1 $aORTEGA, E. R. M.
245 $aComportamento durante a expressão de estro de vacas holandesas de alta produção em sistema ?Compost Barn túnel de vento?.$h[electronic resource]
260 $a2022.$c2022
300 $a65 f.
500 $aDissertação (Mestrado em Ciências Veterinárias) - Universidade Federal de Lavras, Lavras, 2022. Coorientador: Luiz Gustavo Bruno Siqueira.
520 $aThis study was carried out to characterize the behavior during synchronized estrus of high-producing dairy cows housed in a wind tunnel Compost Barn. Additionally, the objective was to determine which environmental, physiological, and productive variables have a greater effect on the expression of estrus in these animals. The experiment was carried out in a wind tunnel Compost Barn installation, at the José Henrique Bruschi Experimental Station, EMBRAPA ? Gado de Leite, Coronel Pacheco, MG, Brazil. Thirty-five cows with 128 ±74 days in milk (DIM) and a voluntary waiting period (VWP) of 45 days were selected. Cows were placed under a fixed-time artificial insemination (FTAI) protocol based on intravaginal devices containing 1.9 g of progesterone (P4), and injection of buserelin acetate (GnRH), cloprostenol sodium, and estradiol cypionate. Auxiliary tools (electronic activity-monitoring cervical collars, video cameras, and marker sticks) were used to aid in estrus detection. The estrus behavior was observed from 24 hours after the removal of the P4 intravaginal device until the end of estrus. The environmental variables (temperature, relative humidity, temperature and humidity index - THI, wind speed, and humidity and temperature of the bedding material), physiological variables (rectal temperature - RT and respiratory rate - RR), and productive variables (milk production and DIM) were measured from the day of intravaginal device removal until the day of estrus. The duration of estrus by visual observation aided by video cameras was 12.8 ± 1.6 h, and by activity-monitoring cervical collars was 20.6 ± 3.9 h, without correlation (r = 0.12, P > 0.05) between these methods. However, considering the interval from the removal of the intravaginal P4 device to the onset of estrus, there was a correlation (r = 0.53, P < 0.05) between these two detection methods. Regarding the intensity of estrus, the behaviors more observed were mounting acceptance (37.9 ± 6.7, 22.4%), attempting to mount from behind (54.5 ± 9.3, 32.2%), and head-to-head (46.6 ± 10.6, 27.6%). As for the distribution of these three behaviors, they were mostly concentrated in the interval from 11:01 am to 5:00 pm. Regarding the physiological variables during estrus expression, RT of 38.8 ± 0.3 °C and RR of 50.4 ± 4.4 breaths per minute were found. Regarding the environmental variables during estrus expression, the ambient temperature of 18.2 ± 2.0 °C, relative humidity of 88.0 ± 1.5 %, THI of 64.0 ± 3.1, wind speed of 2.0 ± 0.1 m/s, humidity and temperature of bedding material of 50.1 ± 0.3% and 49.0 ±1.3 °C, respectively, were observed. The average milk production was 36.7 ± 7.2 liters. When applying the stepwise regression analysis, the determinant variables of estrus expression were wind speed and bedding material moisture. In conclusion, the environmental variables remained stable during the experiment, which allowed the stabilization of the physiological variables. This resulted in the duration and intensity of estrus behavior that favored its observation.
650 $aAnimal behavior
650 $aAnimal welfare
650 $aDairy cows
650 $aBem-Estar
650 $aBovino
650 $aComportamento Animal
650 $aGado Leiteiro
650 $aVaca Leiteira
653 $aEstrous behavior
653 $aÍndice de temperatura e umidade
653 $aTHI
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Gado de Leite (CNPGL) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
