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| Alvarenga,E.A.; Moreira,G.H.F.A.; Facury Filho,E.J.; Leme,F.O.P.; Moreira,T.F.; Carvalho,A.U.. |
| RESUMO Cetose subclínica é uma grande preocupação em rebanhos leiteiros, e seu diagnóstico e prevenção podem ter um grande impacto na saúde animal. Este estudo comparou quatro locais diferentes para a coleta de amostras de sangue (jugular, veias mamárias e coccígeas e ponta da cauda) para medição de β-hidroxibutirato (BHBA), usando-se um medidor portátil automático. Foram utilizadas seis vacas Holandesas, e a coleta de sangue foi feita no segundo, quinto, 10º, 15º e 21º dias pós-parto. Os resultados do medidor portátil foram semelhantes aos resultados do laboratório e apresentaram uma correlação forte de 0,83. As concentrações séricas de BHBA nas amostras de sangue coletadas na ponta da cauda, na jugular e na coccígea foram semelhantes. No entanto, o... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Dairy cows; Ketosis; Transition period; Diagnosis. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000401425 |
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| Moreira,T.F.; Facury Filho,E.J.; Costa,A.L.B.S.A.; Meneses,R.M.; Casagrande,F.P.; Leme,F.O.P.; Uribe,J.A.Z.; Carvalho,A.U.. |
| ABSTRACT The transition period is often a great challenge for dairy cows and mineral imbalances are frequent. With the aim to better understand the mineral profile of F1 Holstein x Gyr dairy cows and their performances under the different conditions of summer and winter, we collected blood samples to measure calcium, magnesium and phosphorus. Samplings were performed during summer and winter, on 15 and 13 pluriparous F1 Holstein x Gyr dairy cows, respectively. Blood sampling started 4 weeks prior to the expected calving date until 30 days postpartum. The mean concentrations of all three minerals had a different pattern during the transition period in each season, representing the interaction time x season. Calcium concentration was lower in winter and more... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hypocalcemia; Hypomagnesemia; Milk fever; Hyperphosphatemia. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000401013 |
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| Diniz,S.; Sandes,S.H.C.; Bomfim,M.R.Q.; Santos,P.C.; Cruz,F.D.; Moreira,T.F.; Carvalho,M.R.S.; Cisalpino,P.S.; Moreira,E.S. A.. |
| ABSTRACT Bovine digital dermatitis (BDD) is an infectious and contagious disease characterized by ulcerative and proliferative lesions affecting the skin on the bulbs of the heel or the interdigital cleft in dairy cattle, often associated with lameness. Evidences on the etiology of BDD indicate that it is multifactorial, involving environmental factors and multiple bacterial colonization. We isolated and identified microorganisms from BDD biopsy samples obtained from five Holstein Friesian and two Jersey cows by cultivation and molecular identification of bacterial isolates using 16S rRNA gene sequence analysis. We identified six bacterial species: Spirochetes as Treponema pedis and Leptospira broomi/L. fainei, L. licerasiae/L. wolffii; Corynebacterium... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bovine digital dermatitis; Molecular identification; 16S rRNA gene analysis; Treponema; Leptospira. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000300559 |
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| Silva,C.B.; Simionatto,E.; Gebara,S.S.; Poppi,N.R.; Cândido,A.C.S.; Lima,C.P.; Dias,J.F.G.; Zanin,S.M.W.; Peres,M.T.L.P.; Moreira,T.F.; Miguel,O.G.; Miguel,M.D.. |
| The volatile oils extracted from the roots of Polygala extraaxillaris were analyzed to assess whether they increase oxidative stress in Brachiaria decumbens var. Piatã, as well as to assess their effect on cellular division and cytotoxicity in laboratory. Six concentrations were used (0%, 0.35%, 0.65%, 1.25%, 0.65%, and 5.0%) with four repetitions of 25 seeds. The substance 1-(2-hydroxyphenyl) - ethanone was identified as the major constituent of the volatile oils. The results showed that the highest concentrations of the oils resulted in an increase in the oxidative stress in B. decumbens, as well as alteration in germination and growth, with a consequent reduction in the process of cellular division, causing changes in the growth standard and antioxidant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Reactive oxygen species; Antioxidant enzymes; Plant defense; Signal grass. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582013000400005 |
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