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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
29/01/2024 |
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Actualizado : |
29/01/2024 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
MARÍN, M.F.; NAYA, H.; ESPASANDIN, A.C.; NAVAJAS, E.; DEVINCENZI, T.; CARRIQUIRY, M. |
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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. |
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Título : |
Energy efficiency, reproductive performance, and metabolic parameters of grazing Hereford heifers. |
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Fecha de publicación : |
2024 |
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Fuente / Imprenta : |
Livestock Science, 2024, Volume 279, e105389. https://doi.org/10.1016/j.livsci.2023.105389 |
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ISSN : |
1871-1413 |
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DOI : |
10.1016/j.livsci.2023.105389 |
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Idioma : |
Inglés |
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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. -- |
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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 |
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Palabras claves : |
Beef cattle; Heat production; Reproduction; SISTEMA GANADERO EXTENSIVO - INIA. |
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Asunto categoría : |
L53 Fisiología Animal - Reproducción |
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Marc : |
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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.
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| Registros recuperados : 8 | |
| 3. |  | GUILLENEA, A.C.; ESPASANDÍN, A.C.; RAVAGNOLO, O.; LEMA, O.M.; GIMENO, D. Caracterización del peso adulto de vacas de cría de diferentes genotipos en Uruguay. In: UNIVERSIDAD DE LA REPÚBLICA (UDELAR). FACULTAD DE AGRONOMÍA. Resúmenes. Jornadas de Investigación, 8-9 nov., 2018, Montevideo, Uruguay. Montevideo; FAGRO, 2019. p. 36 Trabajo originalmente publicado en: Gullenea, A.; Espasandín, A. Ravagnolo, O.; Lema, M.; Gimeno, D. 2018. Congreso AUPA, 41º. Caracterización del peso adulto de vacas de cría de diferentes genotipos en Uruguay. Mar del Plata, Argentina....| Tipo: Abstracts/Resúmenes |
| Biblioteca(s): INIA Treinta y Tres. |
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| 5. | | MARÍN, M.F.; NAYA, H.; ESPASANDIN, A.C.; NAVAJAS, E.; DEVINCENZI, T.; CARRIQUIRY, M. Energy efficiency, reproductive performance, and metabolic parameters of grazing Hereford heifers. Livestock Science, 2024, Volume 279, e105389. https://doi.org/10.1016/j.livsci.2023.105389 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...| Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
| Biblioteca(s): INIA Las Brujas. |
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| 6. | | MARÍN, M.F.; NAYA, H.; DEVINCENZI, T.; NAVAJAS, E.; ESPASANDIN, A. C.; CARRIQUIRY, M. Heart rate of grazing Hereford heifers classified by paternal RFI. [Poster] EAAP - 72nd Annual Meeting, Davos, Switzerland. Session 23, Poster 11. In: Annual Meeting of the European Federation of Animal Science (EAAP), 72., 30 August - 3 September 2021, Davos, Switzerland. Book of abstracts. Wageningen, NL: WAP, 2021. p.278. doi: https://doi.org/10.3920/978-90-8686-918-3 Conference website: www.eaap2021.org| Biblioteca(s): INIA Las Brujas. |
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| 7. | | MARÍN, M.F.; NAYA, H.; NAVAJAS, E.; DEVINCENZI, T.; ESPASANDIN, A.C.; CARRIQUIRY, M. O45 Energy efficiency of Hereford heifers classified by paternal Residual Feed Intake. [conference abstract]. Animal - science proceedings, August 2022, Volume 13, Issue 3, pages 298-299. https://doi.org/10.1016/j.anscip.2022.07.055 Article history: Available online 16 September 2022, Version of Record 16 September 2022. -- Funding: This work was possible given the postgraduate scholarship awarded to M.F. Marín by la Comisión Académica de Posgrados (Universidad de la...| Tipo: Abstracts/Resúmenes |
| Biblioteca(s): INIA Las Brujas. |
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| 8. | | MARÍN, M.; NAYA, H.; ESPASANDÍN, A.C.; NAVAJAS, E.; DEVINCENZI, T.; CARRIQUIRY, M. P56. Reproductive performance of grazing hereford heifers classified by paternal residual feed intake. [conference abstract]. Animal - science proceedings, July 2023, Volume 14, Issue 4, Page 637. https://doi.org/10.1016/j.anscip.2023.04.151 -- OPEN ACCESS. Article history: Available online 4 August 2023, Version of Record 4 August 2023. -- Corresponding author: M.F. Marín. mfedericamarin@gmail.com --
Part of special issue: 11th International Symposium on the Nutrition of Herbivores (ISNH...| Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
| Biblioteca(s): INIA Las Brujas. |
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| Registros recuperados : 8 | |
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