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Acceso al texto completo restringido a Biblioteca INIA Treinta y Tres. Por información adicional contacte bibliott@inia.org.uy.
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Biblioteca (s) :  INIA Treinta y Tres.
Fecha :  02/05/2019
Actualizado :  11/10/2019
Tipo de producción científica :  Artículos en Revistas Indexadas Internacionales
Autor :  MARESCA, S.; VALIENTE, S.L.; RODRÍGUEZ, A.M.; PAVAN, E.; QUINTANS, G.; LONG, N.M.
Afiliación :  Cuenca del Salado Experimental Station, Instituto Nacional de Tecnología Agropecuaria, Argentina.; Cuenca del Salado Experimental Station, Instituto Nacional de Tecnología Agropecuaria, Argentina.; Cuenca del Salado Experimental Station, Instituto Nacional de Tecnología Agropecuaria, Argentina.; Balcarce Experimental Station, Instituto Nacional de Tecnología Agropecuaria, Balcarce, Argentina.; GRACIELA QUINTANS ILARIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Department of Animal and Veterinary Sciences, Clemson, USA.
Título :  Late-gestation protein restriction negatively impacts muscle growth and glucose regulation in steer progeny.
Fecha de publicación :  2019
Fuente / Imprenta :  Domestic Animal Endrocrinology, October 2019, v. 69, p.13-18.
DOI :  10.1016/j.domaniend.2019.01.009
Idioma :  Inglés
Notas :  Article history: Received 1 October 2018. Received in revised form 14 January 2019, accepted 26 January 2019. https://doi.org/10.1016/j.domaniend.2019.01.009
Contenido :  ABSTRACT: The objective of this study was to determine whether the amount of protein provided to cows during late gestation would affect postnatal growth and lead to changes on glucose and insulin concentrations. At 129 d of gestation, 10 mature multiparous Angus cows were stratified by BW and body condition score (BCS) and allotted to low protein level (LP, 6% crude protein [CP]) or high protein level (HP, 12% CP). After calving, cows were managed together on improved pastures which provided forage in excess of requirements until weaning. Male calves were maintained as a group after weaning on native range until 23 mo of age when individual steers were placed in single pens and fed a finishing diet for 84 d. The 12th rib fat thickness and longissimus muscle area were measured during finishing phase by ultrasound. Twenty days before the end of the finishing phase, steers were subjected to an intravenous glucose tolerance test. Steers were harvested and carcass characteristics collected. Cows? BW and BCS were similar at the initiation of treatment. During treatment HP dams gained 21 kg, whereas LP dams lost 7 kg (P ¼ 0.04). Protein nutrition during late gestation did not influence calf birth weight, BW at weaning, adjusted 205 d BW, or average daily gain during lactation (P > 0.10). Longissimus muscle area measure by ultrasound was greater (P ¼ 0.02) in HP steers at the beginning and end of finishing phase. Fat thickness of the 12th rib was not different (P > 0.10) between tr... Presentar Todo
Palabras claves :  CRECIMIENTO ANIMAL; DESNUTRICIÓN; GLUCOSE; INSULIN; POSTNATAL GROWTH; UNDERNUTRITION.
Thesagro :  GLUCOSA; INSULINA.
Asunto categoría :  L02 Alimentación animal
Marc :  Presentar Marc Completo
Registro original :  INIA Treinta y Tres (TT)
Biblioteca Identificación Origen Tipo / Formato Clasificación Cutter Registro Volumen Estado
TT102751 - 1PXIAP - DDPP/DOMESTIC-ANIMAL-ENDOCRINOLOGY-2019

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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 :  30/05/2019
Actualizado :  10/06/2019
Tipo de producción científica :  Artículos en Revistas Indexadas Internacionales
Circulación / Nivel :  Internacional - --
Autor :  ZAGO, D; CANOZZI, M.E.A.; BARCELLOS, J.O,J.
Afiliación :  Department of Animal Science, Federal University of Rio Grande do Sul. Av. Bento Gonçalves n. 7712, 91540-000, Porto Alegre, RS, Brazil.; MARÍA EUGENIA ANDRIGHETTO CANOZZI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JULIO BARCELLOS, Department of Animal Science, Federal University of Rio Grande do Sul. Av. Bento Gonçalves n. 7712, 91540-000, Porto Alegre, RS, Brazil.
Título :  Pregnant cow nutrition and its effects on foetal weight-a meta-analysis.
Fecha de publicación :  2019
Fuente / Imprenta :  The Journal of Agricultural Science,Volume 157, Issue 1, January 2019 , pp. 83-95.
DOI :  10.1017/S0021859619000315
Idioma :  Inglés
Notas :  Article history: Received: 5 December 2018//Revised: 5 March 2019//Accepted: 3 April 2019//First published online: 9 May 2019.
Contenido :  Abstract:The prenatal development of cattle has influence on productive performance throughout postnatal life. The number of muscle and fat cells that the animal will have throughout its life is determined in the foetal stage and is influenced by nutrition of the pregnant cow. A systematic review and meta-analysis was performed to evaluate the effect of different energy levels (total digestible nutrient, TDN) and crude protein (CP) supplied to pregnant cows on foetal weight at 4 (FW4) and 8 months (FW8) and calf birth weight (CBW). Four studies and six trials involving 170 animals were assessed for FW4; four studies, four trials and 156 animals for FW8 and 48 studies, 125 trials and 9053 animals for CBW. High heterogeneity across studies was presented in FW4 (I2 = 94.4%), FW8 (I2 = 91.08%) and CBW (I2 = 96.9%). Dietary TDN and CP levels did not influence FW4. The FW8 was reduced by 2.24 kg when cows were fed 100% of their CP and TDN requirements (I2 = 0%), relative to those fed 70% of their requirements during the first and second trimesters. The CBW was reduced by 0.45 kg (I2 = 96.9%) when cows were fed 130% of their CP requirements relative to other dietary CP levels. When cows were fed 140% of their TDN requirements, CBW decreased by 2.71 kg (I2 = 98.3%) relative to other TDN levels. Dietary energy or CP levels fed above the requirements to pregnant cows restrict foetal development and CBW.
Palabras claves :  BEEF CATTLE; BIRTH WEIGHT; COW-CALF HERD; FOETAL PROGRAMMING; FOETAL WEIGHT; PESO FETAL; VACA PREÑADA.
Thesagro :  NUTRICIÓN ANIMAL.
Asunto categoría :  L51 Fisiología Animal - Nutrición
Marc :  Presentar Marc Completo
Registro original :  INIA La Estanzuela (LE)
Biblioteca Identificación Origen Tipo / Formato Clasificación Cutter Registro Volumen Estado
LE102872 - 1PXIAP - DDPP/Journal of Agricultural Science/2019
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