Resumo

LOPEZ-GARCIA, Gerardo; GONGORA-ORJUELA, Agustín; DIAZ-GONZALEZ, Félix  e  ROJAS-RODRIGUEZ, Adriana. Evaluation of the metabolic status, live weight and body condition during pregnancy in beef in the Colombian Altillanura cows. Orinoquia [online]. 2019, vol.23, n.2, pp.13-24. ISSN 0121-3709.  https://doi.org/10.22579/20112629.565.

The objective of this study was to know the average values ​​of different metabolites, the variation of live weight (LW) and body condition (CC) in Cebu (C) and Simmental x Cebu (SC) cows under extensive grazing in a farm of the Colombian Altillanura. We used 19 multiparous cows and during each trimester of pregnancy, we evaluated the levels of Glucose (Glu), Cholesterol (Col), Total Protein (Ptt), Albumin (Alb), Globulins (Glo), Hemoglobin (Hb), Hematocrit (Hto), Nitrogen in blood (BUN), Copper (Cu), Zinc (Zn), Calcium (Ca), Magnesium (Mg), Phosphorus (P), and Aspartate aminotransferase (AST). The levels of Glu, Hb, Hto, BUN, Ca presented significant variations during the quarter evaluated (P <0.05), with deficiencies of Cu and Zn. The PV and CC presented a linear relationship based on the progress of pregnancy. The importance of metabolic profiles (PM) is recognized as a tool to identify possible nutritional imbalances and how to correct deficiencies, in order to make the productive system more efficient.

Palavras-chave : blood chemistry; body condition; minerals; cattle production; pregnant cows.

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