02266nam a2200361 a 450000100080000000500110000800800410001902400210006010000220008124501040010326001500020752011880035765000230154565000110156865000240157965000100160365000130161365000170162665000200164365000310166365000110169465000100170565000120171565000250172765000180175265000240177065300130179465300300180765300110183770000130184870000170186170000260187815147892021-09-06       1982    bl uuuu     u00u1 u    #d7 a0930848179.2DOI1 aSILVA, M. U. D. e  aTrace element deficiency; a possible explanation of early abortion in goats.h[electronic resource]  aIn: INTERNATIONAL CONFERENCE ON GOAT PRODUCTION AND DISEASE, 3., 1982, Tucson. Proceedings... Scottsdale: Dairy Goat Journal, 1982. p. 498.c1982  aA mean incidence of abortion in the State of Ceara-Sobral was 29 percent. A total of 59 goats in the first 50 days pregnancy among 206 pregnant does reared in the State of Ceara-Sobral (North Eastern Brazil), giving a mean incidence of 29 percent. Primarily, we thought that this high incidence of abortions was of infectious origin. However, microbacteriological culture, histological and serological examinations of placenta, fetus and maternal blood samples were negative in all prospected areas. Later on, maternal blood samples were examined for their concentration in some elements. The results showed very low levels of Iodine (1.6-4.0 mcg/dl.), Magnesium (0.1 mcg/ml), Manganese (0.6-1.51 mg percent) and Phosphorus (2.56-5.88 mg percent). The low levels of these elements in the maternal blood corresponded with low levels of the same elements in the normal diet of goats during the dry season. Since we hypothesize that the high incidence of early abortion is associated with deficiencies in Iodine, Manganese and Phosphorus, further studies, including studies of aborting and nonaborting goats, will be conducted to test if these deficiencies may actually provoke abortion  aAbortion (animals)  aBrazil  aDeficiency diseases  aGoats  aMinerals  aReproduction  aTissue analysis  aTrace element deficiencies  aAborto  aCabra  aCaprino  aDeficiência mineral  aMicroelemento  aReprodução animal  aAbortion  aAnálise de tecido animal  aBrasil1 aREIS, R.1 aLEITE, R. C.1 aSILVA, A. E. D. F. de