<b>Metabolites and plasmatic hormones of buffalo heifers fattened in feed lot in response of the utilization of growth promoter or leads sphere introduced in the uterus</b> - DOI: 10.4025/actascianimsci.v26i2.1869

Abstract

The objective of this research was to study the utilization of growth promoter (Synovex-H^® - 20mg of benzoate of stradiol and 200mg of testosterone) and 100 lead spheres in the uterus on the hematocrit rate and glucose circulating levels, cholesterol total, urea, progesterone, insulin and IGF -1 in buffalo heifers in feedlot. Twenty buffalo heifers of breed Murrah were used, with live weight of 350Kg and 16 months of age, distributed in three treatments: empty heifers (EMH); heifers with growth promoter (GPR), heifers with lead sphere (LEA), introduced in the uterus. The heifers were feeding with the diet same and were weighting in intervals of 28 days. In the initial and final of the experiment (84 days), blood collection was realized in the jugular vein to determine the hematocrit rate and to determine the plasmatic levels of metabolites and hormones. The hematocrit rates were similar in the three treatments, in the beginning and at the end of the experiment. However, the values observed to 84 days were superior to the ones observed in the beginning of the experiment. The plasmatic levels of glucose, total cholesterol and urea were similar among the three treatments, in the beginning and at the end of the experiment. The plasmatic levels of progesterone, insulin and IGF -1 were similar among the treatments, in the beginning and at the end of the experiment. In the same way it was not observed effect of the collection day (D0 and D84).