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Registro completo
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Biblioteca (s) : |
INIA Las Brujas; INIA Tacuarembó; INIA Treinta y Tres. |
Fecha : |
21/02/2014 |
Actualizado : |
03/02/2018 |
Tipo de producción científica : |
Capítulo en Libro Técnico-Científico |
Autor : |
WETTEMANN, R.P. |
Afiliación : |
ROBERT P. WETTEMANN, Oklahoma Agricultural Experiment Station, USA. |
Título : |
Nutritional influences on reproduction of beef cows. |
Fecha de publicación : |
2013 |
Fuente / Imprenta : |
In: QUINTANS, G.; SCARSI, A. (Eds.). Seminario de actualización técnica: cría vacuna Montevideo (UY): INIA, 2013. |
Páginas : |
p. 247-264 |
Serie : |
(INIA Serie Técnica; 208) |
ISSN : |
1688-9266 |
Idioma : |
Español Inglés |
Contenido : |
ABSTRACT.
Production of weaned calves is relatively inefficient. Many cows and heifers exposed to bulls do not become pregnant because they are not in estrus during the breeding season. Losses from less than optimal reproductive performance also results in reduced weaning weights of younger calves the next year. Body energy reserves and nutrient intake are major regulators of reproduction of beef cows. Inadequate body energy reserves at parturition increase the interval to first estrus and ovulation, and postpartum nutrient intake can influence length of the anestrous interval in cows with thin to moderate body condition score (BCS). Nutritional restriction causes decreased secretion of gonadotropin releasing hormone and luteinizing hormone, reduces
follicular growth, and decreases concentrations of estradiol in plasma. In addition to direct and indirect effects of decreased energy intake on the hypothalamus and pituitary, nutrition may influence ovarian function. Adequate body energy stores and sufficient plasma concentrations of metabolic regulators, are necessary for ovulation in postpartum cows. Complex interactions between hormones, metabolic compounds and other signals control
follicular maturation, estrus, and ovulation in postpartum beef cows. |
Thesagro : |
ANESTRO; BOVINOS; NUTRICION DE LOS ANIMALES; URUGUAY; VACAS. |
Asunto categoría : |
-- |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/7580/1/st-208-2013.-p.247-264.pdf
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Marc : |
LEADER 01898naa a2200217 a 4500 001 1009557 005 2018-02-03 008 2013 bl uuuu u00u1 u #d 022 $a1688-9266 100 1 $aWETTEMANN, R.P. 245 $aNutritional influences on reproduction of beef cows. 260 $c2013 300 $ap. 247-264 490 $a(INIA Serie Técnica; 208) 520 $aABSTRACT. Production of weaned calves is relatively inefficient. Many cows and heifers exposed to bulls do not become pregnant because they are not in estrus during the breeding season. Losses from less than optimal reproductive performance also results in reduced weaning weights of younger calves the next year. Body energy reserves and nutrient intake are major regulators of reproduction of beef cows. Inadequate body energy reserves at parturition increase the interval to first estrus and ovulation, and postpartum nutrient intake can influence length of the anestrous interval in cows with thin to moderate body condition score (BCS). Nutritional restriction causes decreased secretion of gonadotropin releasing hormone and luteinizing hormone, reduces follicular growth, and decreases concentrations of estradiol in plasma. In addition to direct and indirect effects of decreased energy intake on the hypothalamus and pituitary, nutrition may influence ovarian function. Adequate body energy stores and sufficient plasma concentrations of metabolic regulators, are necessary for ovulation in postpartum cows. Complex interactions between hormones, metabolic compounds and other signals control follicular maturation, estrus, and ovulation in postpartum beef cows. 650 $aANESTRO 650 $aBOVINOS 650 $aNUTRICION DE LOS ANIMALES 650 $aURUGUAY 650 $aVACAS 773 $tIn: QUINTANS, G.; SCARSI, A. (Eds.). Seminario de actualización técnica: cría vacuna Montevideo (UY): INIA, 2013.
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INIA Las Brujas (LB) |
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Registros recuperados : 5 | |
4. | | ROVIRA, P.J.; BRUGNINI , G.; RODRIGUEZ, J.; CABRERA, M.C.; SAADOUN, A.; DE SOUZA, G.; LUZARDO, S.; RUFO, C. Microbiological changes during long-storage of beef meat under different temperature and vacuum-packaging conditions. Foods, 2023, volume 12, issue 4, article 694. OPEN ACCESS. doi: https://doi.org/10.3390/foods12040694 Article history: Received 28 December 2022; Revised 26 January 2023; Accepted 30 January 2023; Published 6 February 2023. -- Correspondence: Santiago Luzardo, mail: sluzardo@inia.org.uy (S.L.); Caterina Rufo, mail: crufo@fq.edu.uy (C.R.)...Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
Biblioteca(s): INIA Las Brujas. |
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5. | | LUZARDO, S.; SAADOUN, A.; CABRERA, M. C.; TEREVINTO, A.; BRUGNINI, G.; RODRIGUEZ, J.; DE SOUZA, G.; ROVIRA, P.J.; RUFO, C. Effect of beef long-storage under different temperatures and vacuum-packaging conditions on meat quality, oxidation processes and microbial growth. Journal of the Science of Food and Agriculture, 2023. https://doi.org/10.1002/jsfa.12999 -- OPEN ACCESS. Article history: Manuscript received 04 June 2023, Manuscript revised 09 August 2023, Manuscript accepted 19 September 2023, Accepted manuscript online 22 September 2023, Version of Record online 06 October 2023. -- Correspondence...Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
Biblioteca(s): INIA Las Brujas. |
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Registros recuperados : 5 | |
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