Publications by authors named "Maria Magdalena Crosby Galvan"

The objective was to evaluate the response of New Zealand Holstein cows to concentrate supplementation at contrasting times of the day on herbage intake and ingestive behavior. Two experiments were conducted in winter and spring-summer in a grazing dairy production system of Medicago sativa L. with Dactylis glomerata L.

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In this work, extracts from the pulp, peel, and seed of were obtained via lyophilization and oven drying. Bromatological analyses were performed to investigate variabilities in the nutritional content of fruits after nine post-harvest days. The phytochemical content of fruits was assessed by gas chromatography flame ionization detector (GC-FID), and their biological performance was studied using antibacterial and antioxidant assays (DPPH and ABTS) and toxicity models.

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Article Synopsis
  • Ruminants, especially cattle, are significant contributors to methane emissions through ruminal fermentation, prompting research into anti-methanogenic feed strategies.
  • The study analyzed several tropical tree and shrub foliages for their effects on ruminal fermentation, microbial composition, and methane production, finding notable variations in their nutritional profiles.
  • Results indicated that higher levels of condensed tannins in the foliage were associated with lower methane production, suggesting that certain tropical plants could improve nutrition and reduce greenhouse gas emissions.
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Feed efficiency was measured in thirty Pelibuey noncastrated male lambs using the residual feed intake (RFI) and residual intake and gain (RIG). The lambs were fattened for 92 d and then slaughtered, with the aim of identifying the interplay between feed efficiency indices (FEIs) and performance, rumen fermentation parameters, carcass characteristics and meat quality traits from the 15 intermediate and most extreme lambs for each FEI. The mean values of the classes were -0.

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