01761nam a2200289 a 450000100080000000500110000800800410001910000160006024501050007626001940018130000220037552008140039765000140121165000110122565000270123665000180126365000110128165000230129265300130131565300140132865300290134270000180137170000170138970000200140670000230142670000220144913982582023-01-25       1998    bl uuuu     u00u1 u    #d1 aVALE, W. G.  aFactors affecting fertility of cattle and buffaloes in tropical environments.h[electronic resource]  aIn: SIPAR FALLOW-UP SEMINAR ON ANIMAL REPRODUCTION AND BIOTECHNOLOGY, 4., 1998, Belém, PA, Castanhal. Proceedings. [S.l.]: Swedish University of Agricultural Sciences: UFPA, [1998?].c1998  av. 1, p. 110-129.  aThe present artic1e summarizes the main aspects concerning the reproductive problems. related to milk and beef cattle as well as with buffaloes raised in the tropical areas of the world. Specific aspects which cause a low reproduction due to the genetic or hereditary condition as well as combined to the management and environrnental factors like heat stress, affecting mainly European breed originally from temperate climate areas, commonly introduced in the tropical areas, nutritional imbalances, reproductive diseases and other general systemic pathological condition which lead to sub-fertility, infertility or sterility and others constrains, were presented in practical form, pointing out the main problems which routinely, the Veterinary practitioner will find out in the tropical country conditions.  abuffaloes  acattle  areproductive disorders  aAclimatação  aBovino  aFertilidade Animal  aBubalino  aFertility  aProblema na reprodução1 aOHASHI, O. M.1 aSOUSA, J. S.1 aSILVA, A. O. A.1 aSOUZA, H. E. M. de1 aRIBEIRO, H. F. L.