|
|
| Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
Registro completo
|
Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
29/01/2024 |
Actualizado : |
29/01/2024 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
MARÍN, M.F.; NAYA, H.; ESPASANDIN, A.C.; NAVAJAS, E.; DEVINCENZI, T.; CARRIQUIRY, M. |
Afiliación : |
MARIA F. MARÍN, Departamento de Producción Animal y Pasturas, Facultad de Agronomía, Universidad de la República, Montevideo, Montevideo, 12900, Uruguay; HUGO NAYA, Departamento de Producción Animal y Pasturas, Facultad de Agronomía, Universidad de la República, Montevideo, Montevideo, 12900, Uruguay; Unidad de Bioinformática, Institut Pasteur de Montevideo, Montevideo, Montevideo, 11400, Uruguay; ANA C. ESPASANDIN, Departamento de Producción Animal y Pasturas, Facultad de Agronomía, Universidad de la República, Montevideo, Montevideo, 12900, Uruguay; ELLY ANA NAVAJAS VALENTINI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; THAIS DEVINCENZI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARIANA CARRIQUIRY, Departamento de Producción Animal y Pasturas, Facultad de Agronomía, Universidad de la República, Montevideo, Montevideo, 12900, Uruguay. |
Título : |
Energy efficiency, reproductive performance, and metabolic parameters of grazing Hereford heifers. |
Fecha de publicación : |
2024 |
Fuente / Imprenta : |
Livestock Science, 2024, Volume 279, e105389. https://doi.org/10.1016/j.livsci.2023.105389 |
ISSN : |
1871-1413 |
DOI : |
10.1016/j.livsci.2023.105389 |
Idioma : |
Inglés |
Notas : |
Article history: Received 21 September 2023; Received in revised form 9 November 2023; Accepted 1 December 2023; Available online 2 December 2023. -- Correspondence: Marín, M.F.; Departamento de Producción Animal y Pasturas, Facultad de Agronomía, Universidad de la República, Montevideo, Montevideo, Uruguay; email:mfedericamarin@gmail.com -- Funding: This research was partially funded by the Comisión Académica de Posgrados (Uruguay) through the graduate scholarship awarded to M.F. Marín, to the CSIC Reserch Program awarded to M.F. Marin and by the CSIC I + D Research Program (UdelaR) awarded to M. Carriquiry. -- |
Contenido : |
ABSTRACT.- Feed and energy efficiency have been topics of extensive research in recent years, with residual feed intake (RFI) being the preferred index to determine feed efficiency in beef cattle. Nevertheless, the biggest downside of RFI is that its measurement requires accurately determining individual feed intake, which leads to the need to carry out RFI trials in confinement conditions. In this context, residual heat production (RHP), defined as the difference between observed and predicted heat production, presents an alternative to determine efficiency in grazing conditions as it is independent of feed intake. This work aimed to evaluate the repeatability of RHP and study its relationship with metabolic, endocrine, and reproductive variables. Seventy-four Hereford heifers were used, and at the beginning of the experimental period, heifers were 18 ± 0.7-month-old and weighed on average 278 ± 26 kg. Heat production (HP) was determined at the beginning (March to May; fall) and at the end (September to November; spring) of the experiment using the heart rate-O2 pulse technique to classify heifers according with the residual heat production (RHP). Efficient heifers showed lower HP (P < 0.01), ME (P < 0.01), and DM intake (P < 0.01) without differences in retained energy (RE; only in spring). During fall, average daily gain (ADG) was not included in the estimated HP model; therefore, although, as in RFI, RHP should be independent of BW and ADG, a trend for greater ADG and RE was found for efficient when compared with inefficient heifers. Decreased maintenance requirements (NEm and MEm) as well as higher partial efficiency of use of consumed ME (k) were estimated for more efficient heifers (low RHP; HH), while efficient heifers showed an earlier luteal phase and a shorter service-conception interval and calved earlier in the season, probably associated to an earlier development of fat tissue. Excluding glucose, no major differences were found in the plasma metabolites between groups. However, high-efficiency animals showed positive correlations with cholesterol and negative ones with NEFA plasma concentrations during fall. © 2023 MenosABSTRACT.- Feed and energy efficiency have been topics of extensive research in recent years, with residual feed intake (RFI) being the preferred index to determine feed efficiency in beef cattle. Nevertheless, the biggest downside of RFI is that its measurement requires accurately determining individual feed intake, which leads to the need to carry out RFI trials in confinement conditions. In this context, residual heat production (RHP), defined as the difference between observed and predicted heat production, presents an alternative to determine efficiency in grazing conditions as it is independent of feed intake. This work aimed to evaluate the repeatability of RHP and study its relationship with metabolic, endocrine, and reproductive variables. Seventy-four Hereford heifers were used, and at the beginning of the experimental period, heifers were 18 ± 0.7-month-old and weighed on average 278 ± 26 kg. Heat production (HP) was determined at the beginning (March to May; fall) and at the end (September to November; spring) of the experiment using the heart rate-O2 pulse technique to classify heifers according with the residual heat production (RHP). Efficient heifers showed lower HP (P < 0.01), ME (P < 0.01), and DM intake (P < 0.01) without differences in retained energy (RE; only in spring). During fall, average daily gain (ADG) was not included in the estimated HP model; therefore, although, as in RFI, RHP should be independent of BW and ADG, a trend for greater ADG and RE... Presentar Todo |
Palabras claves : |
Beef cattle; Heat production; Reproduction; SISTEMA GANADERO EXTENSIVO - INIA. |
Asunto categoría : |
L53 Fisiología Animal - Reproducción |
Marc : |
LEADER 03594nam a2200253 a 4500 001 1064445 005 2024-01-29 008 2024 bl uuuu u00u1 u #d 022 $a1871-1413 024 7 $a10.1016/j.livsci.2023.105389$2DOI 100 1 $aMARÍN, M.F. 245 $aEnergy efficiency, reproductive performance, and metabolic parameters of grazing Hereford heifers.$h[electronic resource] 260 $aLivestock Science, 2024, Volume 279, e105389. https://doi.org/10.1016/j.livsci.2023.105389$c2023 500 $aArticle history: Received 21 September 2023; Received in revised form 9 November 2023; Accepted 1 December 2023; Available online 2 December 2023. -- Correspondence: Marín, M.F.; Departamento de Producción Animal y Pasturas, Facultad de Agronomía, Universidad de la República, Montevideo, Montevideo, Uruguay; email:mfedericamarin@gmail.com -- Funding: This research was partially funded by the Comisión Académica de Posgrados (Uruguay) through the graduate scholarship awarded to M.F. Marín, to the CSIC Reserch Program awarded to M.F. Marin and by the CSIC I + D Research Program (UdelaR) awarded to M. Carriquiry. -- 520 $aABSTRACT.- Feed and energy efficiency have been topics of extensive research in recent years, with residual feed intake (RFI) being the preferred index to determine feed efficiency in beef cattle. Nevertheless, the biggest downside of RFI is that its measurement requires accurately determining individual feed intake, which leads to the need to carry out RFI trials in confinement conditions. In this context, residual heat production (RHP), defined as the difference between observed and predicted heat production, presents an alternative to determine efficiency in grazing conditions as it is independent of feed intake. This work aimed to evaluate the repeatability of RHP and study its relationship with metabolic, endocrine, and reproductive variables. Seventy-four Hereford heifers were used, and at the beginning of the experimental period, heifers were 18 ± 0.7-month-old and weighed on average 278 ± 26 kg. Heat production (HP) was determined at the beginning (March to May; fall) and at the end (September to November; spring) of the experiment using the heart rate-O2 pulse technique to classify heifers according with the residual heat production (RHP). Efficient heifers showed lower HP (P < 0.01), ME (P < 0.01), and DM intake (P < 0.01) without differences in retained energy (RE; only in spring). During fall, average daily gain (ADG) was not included in the estimated HP model; therefore, although, as in RFI, RHP should be independent of BW and ADG, a trend for greater ADG and RE was found for efficient when compared with inefficient heifers. Decreased maintenance requirements (NEm and MEm) as well as higher partial efficiency of use of consumed ME (k) were estimated for more efficient heifers (low RHP; HH), while efficient heifers showed an earlier luteal phase and a shorter service-conception interval and calved earlier in the season, probably associated to an earlier development of fat tissue. Excluding glucose, no major differences were found in the plasma metabolites between groups. However, high-efficiency animals showed positive correlations with cholesterol and negative ones with NEFA plasma concentrations during fall. © 2023 653 $aBeef cattle 653 $aHeat production 653 $aReproduction 653 $aSISTEMA GANADERO EXTENSIVO - INIA 700 1 $aNAYA, H. 700 1 $aESPASANDIN, A.C. 700 1 $aNAVAJAS, E. 700 1 $aDEVINCENZI, T. 700 1 $aCARRIQUIRY, M.
Descargar
Esconder MarcPresentar Marc Completo |
Registro original : |
INIA Las Brujas (LB) |
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
|
| Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
Registro completo
|
Biblioteca (s) : |
INIA La Estanzuela. |
Fecha actual : |
14/08/2017 |
Actualizado : |
09/10/2019 |
Tipo de producción científica : |
Artículos en Revistas Agropecuarias |
Autor : |
BEZERRA DE BRITO, L.; FEITOSA ALBUQUERQUE, R.; PESSOA ROCHA,B.; SALGADO ALBUQUERQUE, S.; TOMAS LEE, S.; TRINDADE MEDEIROS, R.M.; RIET-CORREA, F.; DE SOUZA MENDONÇA, F. |
Afiliación : |
LUIZ BEZERRA DE BRITO1 , Programa de Pós-graduação em Ciência Veterinária, Universidade Federal Rural do Pernambuco (UFRPE), Recife, PE, Brasil.; RAQUEL FEITOSA ALBUQUERQUE, Programa de Pós-graduação em Ciência Veterinária, Universidade Federal Rural do Pernambuco (UFRPE), Recife, PE, Brasil.; BRENA PESSOA ROCHA, Programa de Pós-graduação em Ciência Veterinária, Universidade Federal Rural do Pernambuco (UFRPE), Recife, PE, Brasil.; SAMUEL SALGADO ALBUQUERQUE, Programa de Pós-graduação em Ciência Veterinária, Universidade Federal Rural do Pernambuco (UFRPE), Recife, PE, Brasil.; STEPHEN TOMAS LEE, USDA-ARS, Poisonous Plant Research Laboratory, Logan, Utah, United States.; ROSANE MARIA TRINDADE MEDEIROS, Hospital Veterinário, Universidade Federal de Campina Grande (UFCG), Patos, PB, Brasil.; FRANKLIN RIET-CORREA AMARAL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay./USDA-ARS, Poisonous Plant Research Laboratory, Logan, Utah, United States.; FÁBIO DE SOUZA MENDONÇA, Laboratório de Diagnóstico Animal, Departamento de Morfologia e Fisiologia Animal, UFRPE, Dois Irmãos, 52171-900, Recife, PE, Brasil. |
Título : |
Intoxicação espontânea e experimental por Palicourea aeneofusca em bovinos, no agreste de Pernambuco, e indução de aversão alimentar condicionada. (Spontaneous and experimental poisoning of cattle by Palicourea aeneofusca in the región of Pernambuco and induction of conditioned food aversión). |
Fecha de publicación : |
2016 |
Fuente / Imprenta : |
Ciência Rural, Santa Maria, v.46, n.1, p.138-143, 2016. |
Idioma : |
Portugués |
Contenido : |
RESUMO:
O objetivo deste trabalho foi descrever os aspectos epidemiológicos, clínicos e patológicos da intoxicação por Palicourea aeneofusca em bovinos, no Agreste de Pernambuco, e comprovar se é possível induzir aversão alimentar à intoxicação por P. aeneofusca em bovinos criados sob manejo extensivo. Para determinar a ocorrência da intoxicação, foram visitadas 30 propriedades em cinco municípios do Agreste de Pernambuco. Três surtos de intoxicação em bovinos foram acompanhados. Para se induzir aversão alimentar condicionada ao consumo de P. aeneofusca, 12 bovinos foram distribuídos aleatoriamente em dois grupos de seis animais cada. Os bovinos foram pesados e receberam, no cocho, folhas verdes de P. aeneofusca, na dose de 35mg kg-1 de peso corporal, para consumo espontâneo. Os bovinos do GC receberam água (1mL kg-1 de peso corporal), via sonda esofágica, após a primeira ingestão da planta, e os demais constituíram o GTA, que foram induzidos à aversão com cloreto de lítio (LiCl - 175mg kg-1 de peso corporal), via sonda esofágica. Para os bovinos do GTA, a indução de aversão a P. aeneofusca, em que se utilizou dose única de LiCl, persistiu por 12 meses. Por outro lado, os bovinos do grupo GC continuaram ingerindo a planta em todos os testes realizados, indicando a ausência de aversão. Este trabalho comprova que o condicionamento aversivo usando LiCl foi eficaz para prevenir a intoxicações por P. aeneofusca por um período de, pelo menos, 12 meses. |
Palabras claves : |
LITHIUM CHLORIDE; MONOFLUOROACETATE; MUERTE SÚBITA; PLATAFORMA SALUD ANIMAL; TOXIC PLANTS. |
Thesagro : |
PLANTAS TOXICAS. |
Asunto categoría : |
E16 Enfermedades de los animales |
Marc : |
LEADER 02580naa a2200277 a 4500 001 1057476 005 2019-10-09 008 2016 bl uuuu u00u1 u #d 100 1 $aBEZERRA DE BRITO, L. 245 $aIntoxicação espontânea e experimental por Palicourea aeneofusca em bovinos, no agreste de Pernambuco, e indução de aversão alimentar condicionada. (Spontaneous and experimental poisoning of cattle by Palicourea aeneofusca in the región of Pernambuco and induction of conditioned food aversión).$h[electronic resource] 260 $c2016 520 $aRESUMO: O objetivo deste trabalho foi descrever os aspectos epidemiológicos, clínicos e patológicos da intoxicação por Palicourea aeneofusca em bovinos, no Agreste de Pernambuco, e comprovar se é possível induzir aversão alimentar à intoxicação por P. aeneofusca em bovinos criados sob manejo extensivo. Para determinar a ocorrência da intoxicação, foram visitadas 30 propriedades em cinco municípios do Agreste de Pernambuco. Três surtos de intoxicação em bovinos foram acompanhados. Para se induzir aversão alimentar condicionada ao consumo de P. aeneofusca, 12 bovinos foram distribuídos aleatoriamente em dois grupos de seis animais cada. Os bovinos foram pesados e receberam, no cocho, folhas verdes de P. aeneofusca, na dose de 35mg kg-1 de peso corporal, para consumo espontâneo. Os bovinos do GC receberam água (1mL kg-1 de peso corporal), via sonda esofágica, após a primeira ingestão da planta, e os demais constituíram o GTA, que foram induzidos à aversão com cloreto de lítio (LiCl - 175mg kg-1 de peso corporal), via sonda esofágica. Para os bovinos do GTA, a indução de aversão a P. aeneofusca, em que se utilizou dose única de LiCl, persistiu por 12 meses. Por outro lado, os bovinos do grupo GC continuaram ingerindo a planta em todos os testes realizados, indicando a ausência de aversão. Este trabalho comprova que o condicionamento aversivo usando LiCl foi eficaz para prevenir a intoxicações por P. aeneofusca por um período de, pelo menos, 12 meses. 650 $aPLANTAS TOXICAS 653 $aLITHIUM CHLORIDE 653 $aMONOFLUOROACETATE 653 $aMUERTE SÚBITA 653 $aPLATAFORMA SALUD ANIMAL 653 $aTOXIC PLANTS 700 1 $aFEITOSA ALBUQUERQUE, R. 700 1 $aPESSOA ROCHA,B. 700 1 $aSALGADO ALBUQUERQUE, S. 700 1 $aTOMAS LEE, S. 700 1 $aTRINDADE MEDEIROS, R.M. 700 1 $aRIET-CORREA, F. 700 1 $aDE SOUZA MENDONÇA, F. 773 $tCiência Rural, Santa Maria$gv.46, n.1, p.138-143, 2016.
Descargar
Esconder MarcPresentar Marc Completo |
Registro original : |
INIA La Estanzuela (LE) |
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
Expresión de búsqueda válido. Check! |
|
|