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Teresina, Brazil

Rodrigues M.C.,Federal University of Goais | Leao K.M.,Federal University of Goais | Silva N.C.,Federal University of Goais | Silva R.P.,Federal University of Goais | And 2 more authors.
Revista Brasileira de Saude e Producao Animal | Year: 2014

The objective of the present study was to assess the effect of administration of Melengestrol Acetate (MGA® Premix) after FTAI, on the conception rate in lactating Nelore breed cows. Experiment I, assessed the effect of administration of 2.28g MGA/cow/day, from day 13 (D13) until day 18 (D18) after FTAI. The cow were divided into two groups, Group I (n=83, control) that cows were submitted just to FTAI and Group II (n=104, treated) that cows received MGA after FTAI. Experiment II, assessed the effect of administration of 2.28g MGA/cow/day, from day 5 (D5) until day 10 (D10) after FTAI. The cow were divided into two groups, Group I (n=94, control) that cows were submitted just to FTAI and Group II (n=100, treated) that cows received MGA after FTAI. Gestation was diagnosed in both experiments 45 days after FTAI. The conception rates were analyzed by Qui-Square test. In experiment I, The conception rates were 42,16% for control group and 50,0% for treated group (p>0,05). In Experiment II, the conception rate of control group (47,87%) was higher than treated group (28,0%). It was conclude that administration of MGA®Premix from D13 until D18 after FTAI didn't affect the conception rate. However, when administered from D5 until D10, reduced the conception rate in lactating Nelore breed cows. Source


The effect of two dissociative protocols relating to hemogram and cardio-vascular profiles was assessed, using twenty females dogs admitted for surgical treatment of ovariohysterectomy. The animals were divided into two groups (G). To G1, 0.1 mg/kg of acepromazine was administered and twenty minutes later, 10 mg/kg of tiletaminezolazepam, both via intramuscular; to G2, 0.044 mg/kg of atropine sulfate and, twenty minutes later, 15 mg/kg of cetamine-s and 1 mg/kg of xylazine in the same syringe, both via intramuscular, in a double blind study. The arterial systolic blood pressure, peripheral hemoglobin saturation, heart rate, respiratory rate and temperature were monitored. These parameters were measured thirty minutes before the anesthetic, immediately before the anesthetic (M0), 15 (M1), 30 (M2), 45 (M3) and 60 (M4) minutes after M0. For the hemogram, samples were collected 30 minutes before the anesthetic, at the end of the study (T60) and 24 hours after the end of the study (T24). The results showed that the value for the erythrocyte, hemoglobin, hematocritus, mean globular volume and total leucocytes, diminished at the time 60 (T60) and were normalized again after 24 hours. The substances undergoing tests did not react significantly on the SpO2 values, systolic blood pressure, heart beats and respiratory frequency. The use of acepromazine in the pre-treatment for tiletamine/zolazepam led to a diminishment of the body temperature. The anesthetic associations under study are viable protocols for anesthesia in females dogs submitted to ovariohysterectomy, when relating to the hematological and cardiorespiratory profiles. Source


Duarte F.D.,Federal University of Minas Gerais | Lara L.J.C.,Federal University of Minas Gerais | Baiao N.C.,Federal University of Minas Gerais | Cancado S.V.,Federal University of Minas Gerais | Teixeira J.L.,Medico Veterinario
Arquivo Brasileiro de Medicina Veterinaria e Zootecnia | Year: 2010

The effects of adding tallow (T), poultry visceral oil (PVO), degummed soybean oil (DSO), and a mixture of T + PVO and T + DSO in different proportions in diets for broiler chickens were evaluated. The treatments were defined according to the lipid sources (LS) and their mixtures added to the diets and also according to the proportion of metabolizable energy (ME) originated from each LS (25, 50, and 75% of ME for each LS added to the feed). The experimental design was completely randomized. There were no differences (P>0.05) between treatments for body weight and food intake. Feed conversion (CA) of birds fed diets containing DSO and DSO + T (75 and 25% of ME) were lower than those chickens that were fed the diets with PVO and T (50 and 50% of ME); but showed similar results (P>0.05) to chickens of other treatments. The values found for abdominal fat and yield and composition of carcass were not affected by LS (P>0.05). It was concluded that the use of different lipid sources in diets for broiler chickens has no effect on performance and yield and carcass composition. Source


Oliveira R.P.M.D.,Federal University of Amazonas | Assante R.T.,Federal University of Amazonas | Silva A.F.,Zootecnista | Oliveira F.F.D.,Medico Veterinario | And 2 more authors.
Revista Brasileira de Saude e Producao Animal | Year: 2016

This study aimed to evaluate the nutritional metabolic condition of Santa Ines ewes in antepartum and postpartum period, in order to avoid toxemia. Were used 50 Santa Ines ewes management under the same condition of handling and feeding, distributed into five groups, according to the gestation period: G1-P-60 (60 days before partum), G2-P-30 (30 to 21 days before partum), G3-P0 (at partum to 4 days post partum), G4-P+30 (30 days after partum) and G5-P+60 (60 days after partum). The blood collection was conducted in the morning by venipuncture of the jugular in two vacuum tubes. The metabolites evaluated were: protein metabolism (total protein, albumin, globulin and urea), energy (glucose) and mineral (magnesium (Mg), calcium (Ca) and phosphorus (P)). To determine the differences between the means was applied the Tukey test at 5% probability. The serum concentrations of the protein metabolism (total protein, albumin and globulins), the mineral metabolism (calcium, phosphorus and magnesium) and the energy metabolism (glucose) according to the experimental phase showed significant differences (P<0.05), where the average Β-hydroxybutyrate remained within the reference values for the breed. None of gestation stages presented metabolic deficiencies in protein and energy inputs for the diet and tested management phase. The mineral calcium showed low levels at the end of gestation and early lactation. Source


Da Costa M.L.L.,Federal University of Paraiba | De Rezende A.S.C.,Federal University of Minas Gerais | Lana A.M.Q.,Federal University of Minas Gerais | Santiago J.M.,University of Pernambuco | And 4 more authors.
Semina:Ciencias Agrarias | Year: 2016

During dry seasons, equines are traditionally fed hay. However, if not prepared under favorable climatic conditions and if not properly stored, hay does not preserve its nutritional value. The aim of this research was to evaluate the chemical composition in Stylosanthes guianensis cv. Mineirão and Estilosantes Campo Grande hay varieties, used to feed equines over 225 days of storage. Treatments consisted of Stylosanthes guianensis cv. Mineirão and Estilosantes Campo Grande hay varieties, assessed at six moments of storage: 0, 45, 90, 135, 180, and 225 days. The experiment followed a completely randomized split-plot design. In the comparison between varieties, differences (P<0.05) were found for dry matter, acid detergent insoluble nitrogen, neutral detergent fiber, and lignin. The storage period altered (P<0.05) the concentrations of dry matter, calcium, and crude protein in both hay varieties. The beta-carotene content in the leguminous plants did not decline (P>0.05) over the 225 days of storage. The storage period had little impact on the nutritional quality of the assessed hays. The Stylosanthes guianensis cv. Mineirão and, mainly, Estilosantes Campo Grande hay varieties have potential to be used in equine diet. Source

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