Browsing Ciencias Veterinarias by Author "Allegretti, Liliana"

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    • Degradación y utilización de la hemicelulosa contenida en especies forrajeras por Pseudobutyrivibrio ruminis y Pseudobutyrivibrio xylanivorans 

      Grilli, Diego; Egea, Vanina; Paez Lama, Sebastián; Carcaño, Diego; Allegretti, Liliana; Sosa Escudero, Miguel; Arenas, Graciela Nora (Comité editorial Revista de la Facultad de Ciencias Agrarias, 2015-12)
      Este estudio fue desarrollado para determinar la degradación y utilización de la hemicelulosa contenida en diferentes forrajes por dos cepas bacterianas (P. xylanivorans 2 y P. ruminis 153), aisladas del rumen de caprinos Criollos. El cultivo de las cepas puras fue desarrollado hasta evidenciar la fermentación completa del heno de alfalfa y de diversas forrajeras nativas. La degradación fue definida como la solubilización de las pentosas insolubles en etanol al 80%, mientras que la utilización se definió como la pérdida de las pentosas totales. Los componentes nutricionales medidos en los ...

    • Effect of the length of the suckling period and dietary energy intake in lactation on the duration of postpartum anestrus in Creole goats. 

      Paez Lama, Sebastián Antonio; Grilli, Diego; Egea, Vanina; Fucili, Mercedes; Allegretti, Liliana; Guevara, Juan Carlos; Jahn, Graciela Alma (Comité editorial Small Ruminant Research, 2016-04-16)
      The objective of this study was to determine the effect of the length of the suckling period and the dietary energy level on the duration of postpartum anestrus in Creole goats. Twenty-eight multiparous pregnant goats (bodyweight BW 39.9 ± 6.4 kg; mean ± SEM) each bearing a single fetus were used in a 2 suckling period (30 vs. 60 d) × 2 levels of energy intake (low (L) vs. high (H)) factorial design. Kids were separated from their dams 3 d after birth and then suckled twice per day until weaned at 30 or 60 d postpartum. Dams weaned at 30 d postpartum were hand milked for the next 30 d. Goats ...

    • EFFECT OF THE REARING SYSTEM ON THE ESTABLISHMENT OF DIFFERENT FUNCTIONAL GROUPS OF MICROORGANISM IN THE RUMEN OF KID GOATS 

      Paez Lama, Sebastián; Grilli, Diego; Egea, Vanina; Cerón Cucchi, María; Fucili, Mercedes; Allegretti, Liliana; Guevara, Juan Carlos (Comité editorial Acta Veterinaria-Beograd, 2015-06-23)
      This study was aimed to determine the effect of the rearing system on the establishment and development of different functional groups of microorganisms in the rumen of kid goats. Fifty kids were fed on goat milk until weaning at 45 (TR, traditional rearing system, n = 25) and 30 days of age (alternative rearing system, AR, n = 25). In addition, only AR group was offered with rumen starter from birth. Both groups consumed alfalfa hay and ground corn between 30 and 90 days of age. Five kids from each group were slaughtered at 21, 30, 45, 70 and 90 days old. It was determined the total number of ...