Resumo
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 i
O objetivo deste trabalho foi avaliar o uso de promotor de crescimento (Synovex-H® - 20mg de benzoato de estradiol e 200mg de testosterona) ou 100 esferas de chumbo implantadas no útero de novilhas bubalinas em confinamento sobre a taxa de hematócrito e níveis circulantes de glicose, colesterol total, uréia, progesterona, insulina e IGF-1. Foram utilizadas 20 novilhas bubalinas da raça Murrah, com peso vivo médio de 350kg e 16 meses de idade, distribuídas ao acaso em 3 tratamentos: novilhas não-gestantes (vazias - VAZ), com implante de promotor de crescimento (PRC) e com implante de esferas de chumbo (ECH) no útero. As novilhas foram alimentadas com dieta única e foram pesadas a cada 28 dias. No início e no final do experimento (84 dias), foram realizadas coletas de sangue da veia jugular, para determinação da taxa de hematócrito e determinação dos níveis plasmáticos de hormônios e metabólitos. As taxas de hematócrito foram semelhantes nos 3 tratamentos no início e no final do experimento. Todavia valores observados no final do experimento foram superiores àqueles do início do experimento. Os níveis plasmáticos de glicose, colesterol total e uréia foram semelhantes nos 3 tratamentos, no início e no final do experimento. No entanto, houve uma redução dos níveis de uréia entre o início e o final do experimento, independentemente do tratamento. Os níveis plasmáticos de progesteron
Resumo
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 i
O objetivo deste trabalho foi avaliar o uso de promotor de crescimento (Synovex-H® - 20mg de benzoato de estradiol e 200mg de testosterona) ou 100 esferas de chumbo implantadas no útero de novilhas bubalinas em confinamento sobre a taxa de hematócrito e níveis circulantes de glicose, colesterol total, uréia, progesterona, insulina e IGF-1. Foram utilizadas 20 novilhas bubalinas da raça Murrah, com peso vivo médio de 350kg e 16 meses de idade, distribuídas ao acaso em 3 tratamentos: novilhas não-gestantes (vazias - VAZ), com implante de promotor de crescimento (PRC) e com implante de esferas de chumbo (ECH) no útero. As novilhas foram alimentadas com dieta única e foram pesadas a cada 28 dias. No início e no final do experimento (84 dias), foram realizadas coletas de sangue da veia jugular, para determinação da taxa de hematócrito e determinação dos níveis plasmáticos de hormônios e metabólitos. As taxas de hematócrito foram semelhantes nos 3 tratamentos no início e no final do experimento. Todavia valores observados no final do experimento foram superiores àqueles do início do experimento. Os níveis plasmáticos de glicose, colesterol total e uréia foram semelhantes nos 3 tratamentos, no início e no final do experimento. No entanto, houve uma redução dos níveis de uréia entre o início e o final do experimento, independentemente do tratamento. Os níveis plasmáticos de progesteron