Ginna Carolina Reyes Rodriguez

Ginna Carolina Reyes Rodriguez
University of Guelph | UOGuelph · Department of Animal and Poultry Science

PhD

About

7
Publications
527
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16
Citations

Publications

Publications (7)
Conference Paper
Full-text available
Compared to the late-lactation dairy cow, a cow in early lactation exhibits low peripheral insulin sensitivity as a mechanism to divert nutrients to milk synthesis. Differences between stages of lactation in the insulin secretory response of the pancreas, especially to amino acids (AA) and gut incretins GIP and GLP-1, are less well established. The...
Article
Full-text available
In the lactating cow, essential amino acids (EAAs) absorbed from the gut are partitioned to mammary and extra-mammary tissues via blood plasma circulation. There is also entry of EAA into plasma from the breakdown of proteins in the cow’s body. A balance model across plasma was solved to integrate entry rates of branched-chain (BCAA) and non-branch...
Conference Paper
Lactating dairy cows partition absorbed nutrients to milk and body components and catabolism. Nutrient catabolism results in O2 consumption and CO2 production which can be measured remotely and automatically in individual free-moving cows. In order to manipulate the partitioning of nutrients into milk vs. other sinks, a model that estimates each of...
Article
Exogenous enzymes have been used to improve nutrient utilization in several species of livestock, particularly swine and poultry. In addition, improved immunological and metabolic traits have been reported in nonruminants. The objective of this study was to determine the effects of β-mannanase supplementation on milk yield and composition, and immu...

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