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Acceso al texto completo restringido a Biblioteca INIA Tacuarembó. Por información adicional contacte bibliotb@tb.inia.org.uy.
Registro completo
Biblioteca (s) :  INIA Tacuarembó.
Fecha :  28/08/2018
Actualizado :  25/02/2019
Tipo de producción científica :  Artículos en Revistas Indexadas Internacionales
Autor :  MIRABALLES, C.; SÁNCHEZ, J.; BARROS, A.T.M.; HITATEGUY, S.; MORENO, P.; SAPORITI, T.; RIET-CORREA, F.
Afiliación :  MÓNICA MIRABALLES FERRER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JAVIER SÁNCHEZ, University of Prince Edwards Island, Charlottetown, Canada.; ANTONIO THADEU M. BARROS, Embrapa Beef Cattle, Campo Grande, MS, Brazil.; SEBASTIÁN HITATEGUY, Universidad de la República (UdelaR)/ Facultad de Veterinaria.; PABLO MORENO, Universidad de la República (UdelaR)/ Facultad de Veterinaria.; TATIANA SAPORITI NOGUEIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FRANKLIN RIET-CORREA AMARAL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.
Título :  Influence of selective treatment of bulls on the infestation of Haematobia irritans on untreated cows.
Fecha de publicación :  2018
Fuente / Imprenta :  Veterinary Parasitology, 2018, v. 260, p. 58–62.
ISBN :  10.1016/j.vetpar.2018.08.012
Idioma :  Inglés
Notas :  Article history: Received 25 May 2018, Revised 23 August 2018, Accepted 24 August 2018, Available online 27 August 2018.
Contenido :  Abstract: The distribution of Hematobia irritans is not homogeneous in cattle populations. Generally, between 15% and 30% of bovines carry more than 50% of the flies, and higher infestations occur in bulls. In this study, the effect of treating the bulls with ear tags containing 40% diazinon on the infestation of flies on the herd during the breeding season was evaluated. Four groups of cattle were made, each containing one bull and 35 Braford cows. Groups 1 and 2 were on pastures in highlands. Groups 3 and 4 were on pastures in lowlands. At the beginning of the trial, each bull from Groups 1 and 3 was treated with an ear tag. Bulls from Groups 2 and 4 remained untreated. Weekly, for 10 weeks, horn flies were counted from each bull and 15 cows from each group. A repeated measures linear mixed model was used with cows as random effects. The number of horn flies in the treated groups was lower than that in the untreated group, suggesting that selective treatment of bulls could be an effective strategy to control horn flies on the herd. The number of flies was higher in the lowland than that in the highland groups, suggesting an effect of the environment on horn fly infestations. In addition, we estimated the cow level predictions from the model to estimate the cow effect on fly counts, and we compared those values with the observed weekly quartiles for each group. Fly-susceptible cows were defined as those for which the infestation of flies appeared in the upper quartile more ... Presentar Todo
Palabras claves :  BLUP (BEST LINEAR UNBIASED PREDICTION); BLUPS; CONTROL; RESITANT COWS; SUSCEPTIBLE COWS.
Thesagro :  ENFERMEDADES DE LOS ANIMALES.
Asunto categoría :  L73 Enfermedades de los animales
Marc :  Presentar Marc Completo
Registro original :  INIA Tacuarembó (TBO)
Biblioteca Identificación Origen Tipo / Formato Clasificación Cutter Registro Volumen Estado
TBO102725 - 1PXIAP - DD

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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 actual :  24/06/2019
Actualizado :  16/03/2021
Tipo de producción científica :  Artículos en Revistas Indexadas Internacionales
Circulación / Nivel :  Internacional - --
Autor :  CASAL, A.; GARCÍA-ROCHE, M.; NAVAJAS, E.; CASSINA, A.; CARRIQUIRY, M
Afiliación :  A. CASAL, Departamento de Produccion Animal y Pasturas, Facultad de Agronomia, Universidad de la Republica, Paysandú, Uruguay.; M. GARCÍA-ROCHE, Departamento de Produccion Animal y Pasturas, Facultad de Agronomia, Universidad de la Republica, Montevideo, Uruguay; Center for Free Radical and Biomedical Research (CEINBIO); ELLY ANA NAVAJAS VALENTINI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; A. CASSINA, Center for Free Radical and Biomedical Research (CEINBIO) and Departamento de Bioquímica, Facultad de Medicina, Universidad de la Republica, Montevideo, Uruguay; M. CARRIQUIRY, Departamento de Produccion Animal y Pasturas, Facultad de Agronomia, Universidad de la Republica, Montevideo, Uruguay.
Título :  Differential hepatic oxidative status in steers with divergent residual feed intake phenotype.
Fecha de publicación :  2020
Fuente / Imprenta :  Animal, 1 January 2020, Volume 14, Issue 1, Pages 78-85. Doi: https://doi.org/10.1017/S1751731119001332
DOI :  10.1017/S1751731119001332
Idioma :  Inglés
Notas :  Article history: Received 12 December 2018 // Accepted 6 May 2019 // Published online: 20 June 2019. Supplementary materials. Corresponding author: Casal, A.; Departamento de Produccion Animal y Pasturas, Facultad de Agronomia, Universidad de la Republica, Ruta 3 km 363, Paysandu, Uruguay; email:alcas@adinet.com.uy
Contenido :  ABSTRACT. Oxidative stress occurs when oxidant production exceeds the antioxidant capacity to detoxify the reactive intermediates or to repair the resulting damage. Feed efficiency has been associated with mitochondrial function due to its impact on cell energy metabolism. However, mitochondria are also recognized as a major source of oxidants. The aim of this study was to determine lipid and protein oxidative stress markers, and gene and protein expression as well as activity of antioxidant enzymes in the liver of steers of divergent residual feed intake (RFI) phenotypes. Hereford steers (n = 111) were evaluated in post-weaning 70 days standard test for RFI. Eighteen steers exhibiting the greatest (n = 9; high-RFI) and the lowest (n = 9; low-RFI) RFI values were selected for this study. After the test, steers were managed together under grazing conditions until slaughter when they reached the slaughter body weight. At slaughter, hepatic samples were obtained, were snap-frozen in liquid nitrogen and stored at −80°C until analyses. Hepatic thiobarbituric acid reactive species and protein carbonyls were greater (P = 0.05) and hepatic 4-hydroxynonenal protein adducts tended (P = 0.10) to be greater for high- than low-RFI steers. Hepatic gene expression glutathione peroxidase 4, glutamate?cysteine ligase catalytic subunit and peroxiredoxin 5 mRNA was greater (P ≤ 0.05) and glutathione peroxidase 3 mRNA tended (P = 0.10) to be greater in low- than high-RFI steers. Hep... Presentar Todo
Palabras claves :  ANTIOXIDANTS; ENERGY METABOLISM; FEED EFFICIENCY; FEEDING; LIVER; OXIDATIVE STRESS.
Thesagro :  ALIMENTACION ANIMAL.
Asunto categoría :  L02 Alimentación animal
Marc :  Presentar Marc Completo
Registro original :  INIA Las Brujas (LB)
Biblioteca Identificación Origen Tipo / Formato Clasificación Cutter Registro Volumen Estado
LB101842 - 1PXIAP - DDPP/ANIMAL/2020
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