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Effect of GnRH analogue administration on Day 7 after natural mating on formation accessory corpus luteum, progesterone concentration and conception rate in llamas (Lama glama)
(2018-03)The objectives of the present study were to determine the effects of exogenous GnRH administered7 days after breeding on the formation of an accessory corpus luteum (ACL), plasma progesterone(P4) concentrations and pregnancy ... -
Effect of GnRH or hCG administration on Day 4 post insemination on reproductive performance in Merino sheep of North Patagonia
(Elsevier, 2018-12)Different therapeutic strategies have been used with the objective of improve luteal function to reduce embryonic losses. The objective of this work was to study the effect of the administration of GnRH or hCG at Day 4 ... -
Effect of Protein Restriction During Mid-to Late Gestation of Beef Cows on Female Offspring Fertility, Lactation Performance and Calves Development
(E-Cronicon, 2019-12)Cow calf operation in Argentina are managed under extensive grazing condition and the quality of forages is often poor during second half of gestation. Protein restriction in bovine gestation affects production traits in ... -
Effect of protein restriction of Angus cows during late gestation: Subsequent reproductive performance and milk yield
(2018-06)The effect of level of CP fed during late gestation on reproductive performance and milk production was studied in multiparous cows. Sixty-eight pregnant Angus cows were used. At 121 d prepartum, cows were blocked by BW ... -
Effect of protein restriction of bovine dams during late gestation on offspring postnatal growth, glucose-insulin metabolism and IGF-1 concentration
(2018-06)The objective of this study was determine whether the amount of protein provided to cows during late gestation would affect postnatal growth and lead to changes on glucose, insulin and insulin-like growth factor concentrations. ... -
Effects of inorganic copper injection in beef cows at late gestation on fetal and postnatal growth, hematology and immune function of their progeny
(Elsevier, 2021-10)To determine if Cu injection during late gestation can affect fetal and postnatal growth, hematology and immune function of progeny, 70 multiparous pregnant Angus cows, at 219 ± 15 d of gestation, were ranked by BW and BCS ... -
Effects of two protocols of ovulation synchronization on corpus luteum size and blood flow, progesterone concentration, and pregnancy rate in beef heifers
(Elsevier, 2023-04)The objective of this study was to evaluate the effect of 7-day estradiol-progesterone-based [Treat(C)] and 5-day Co-Synch plus progesterone [Treat(Co-Sy)] protocols on ovulation time, pre-ovulatory follicle diameter, ... -
Evaluación de la eficiencia de dos tipos de eCG, recombinante y de origen equino, en un protocolo de IATF en vacas cruza cebú con cría
(Asociación Argentina de Producción Animal, 2023-09)El objetivo del siguiente experimento fue comparar el uso de eCG recombinante y eCG producida a partir de suero de yegua preñada sobre la tasa de preñez en un protocolo tradicional de sincronización de celo e inseminación ... -
Evaluación de resultados de diagnósticos de preñez en vacas
(EEA Valle Inferior, INTA, 2021-09-21)El presente trabajo resume una consulta realizada a nueve Médicos Veterinarios de la Comarca Viedma-Patagones, que dedican su trabajo en el medio rural, sobre los resultados obtenidos de los diagnósticos de preñez por tacto ... -
Evaluación de tres marcas comerciales de packs reproductivos para IATF en ganado de carne cruza cebú
(AAPA, 2022)El objetivo del presente trabajo fue comparar tres productos hormonales (pack reproductivos) de marcas comerciales disponibles y muy utilizadas en la Argentina para evaluar los resultados de preñez. -
Evaluación de un esquema de control integrado de Rhipicephalus (Boophilus) microplus en vacas preñadas y con cría en el noreste argentino
(Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, 2022-05)El objetivo fue evaluar un esquema de control integrado para Rhipicephalus (Boophilus) microplus en vacas preñadas y con cría combinando dos tratamientos con acaricidas químicos y el descanso de potreros en una localidad ... -
Evaluation of the humoral immune response to a multicomponent recombinant vaccine against S. aureus in healthy pregnant heifers
(2018-05)Staphylococcus aureus is a worldwide pathogen that causes mastitis in dairy herds. Shortcomings in control programs have encouraged the development of vaccines against this pathogen. This study evaluated the vaccine candidate ... -
Experimental inoculation of Neospora caninum in pregnant water buffalo
(Elsevier, 2012-06-08)The aim of this study was to characterize the pathogenesis of Neospora caninum in experimentally inoculated pregnant water buffalo (Bubalus bubalis). Twelve Mediterranean female water buffaloes ranging in age from 4 to 14 ... -
Exploración de variables predictoras de preñez en vaquillas de carne
(2014)Con el objetivo de analizar variables pre-servicio que sean indicativas del desarrollo y la composición corporal, para encontrar aquéllas que sean predictivas de la tasa de preñez, se trabajó con un rodeo de 58 vaquillas ... -
Ganadería bovina en el área de influencia de la EEA INTA San Pedro. Recomendaciones sobre sanidad, nutrición y manejo. Julio 2020
(EEA San Pedro, INTA, 2020)Aporta información para minimizar los problemas ligados al período de parición, los cuales tienen gran impacto sobre los índices reproductivos y productivos en los rodeos de cría bovina. Analiza la tasa de crecimiento ... -
High rate of transplacental infection and transmission of Neospora caninum following experimental challenge of cattle at day 210 of gestation
(BMC, 2012-12)In order to investigate the pathogenesis of neosporosis following a primary infection in late pregnancy, cattle were subcutaneously challenged with 5 × 108 Neospora caninum (NC1 isolate) tachyzoites at day 210 of gestation ... -
Hormones and monensin use to improve pregnancy rates in grazing lactating beef cows in the semiarid region of Argentina
(2018-03)The objectives of this study were 1) to determine the effect of monensin treatment, alone or combined with a hormonal estrus synchronization treatment, on the pregnancy rate of lactating beef cows, and 2) to evaluate the ... -
Human brucellosis and adverse pregnancy outcomes
(Springer, 2016-12)Purpose of Review Brucellosis is a neglected, zoonotic disease of nearly worldwide distribution. Despite brucellosis being recognized as a reproductive disease in animals, it has been historically known as a flu-like ... -
Humoral immune response of pregnant goats to two Corynebacterium pseudotuberculosis bacterin formulations
(Facultad de Ciencias Veterinarias, Universidad Austral de Chile, 2018)Caseous lymphadenitis is a chronic suppurative bacterial disease caused by Corynebacterium pseudotuberculosis, and it has a high prevalence among small ruminants. Different vaccine preparations have been employed to control ... -
Immunization of pregnant cows with Shiga toxin-2 induces high levels of specific colostral antibodies and lactoferrin able to neutralize E. coli O157:H7 pathogenicity
(2018-03)E. coli O157:H7 is a foodborne pathogen responsible for bloody diarrhea, hemorrhagic colitis and hemolytic uremic syndrome (HUS). The objective of the present work was to evaluate the ability of colostral IgG obtained from ...