Crooked calf syndrome, a plant-induced congenital deformity     

James L.  Shupe D.V.M.  Wayne  Binns D.V.M.  Lynn F.  James Ph.D. Richard F.  Keeler Ph.D. 《Reproduction in domestic animals》1967,2(4):145-152

  相似文献   

Evaluation of a method to estimate the prevalence of congenital malformations in swine, using a mailed questionnaire   总被引：2，自引：0，他引：2  

L A Selby  C J Marienfeld  W Heidlage  H T Wright  V E Young 《The Cornell veterinarian》1971,61(2):203-213

  相似文献   

An anomalous origin of the right subclavian artery in the dog     

V S DeKleer 《The British veterinary journal》1971,127(2):76-82

  相似文献   

Effect of season of calving on some of the economic traits in Ongole cattle     

M V Rao  C M Taylor 《The Indian veterinary journal》1971,48(4):366-373

  相似文献   

An outbreak of hemorrhagic fever with a renal syndrome in the Plitvice Lakes area (preliminary report)   总被引：1，自引：0，他引：1  

J Vesenjak-Hirjan  A Hrabar  V Vince-Ribari?  B Borci?  Z Brudnjak 《Folia parasitologica》1971,18(3):275-279

  相似文献   

Levels and isomers of diethylstilbestrol for finishing steers     

R L Preston  E W Klosterman  V R Cahill 《Journal of animal science》1971,33(2):491-496

  相似文献   

SURFACE CHEMISTRY OF THE HYDRANDEPTS AND ITS RELATION TO NITRATE ADSORPTION AS AFFECTED BY PROFILE DEPTH AND DEHYDRATION1     

V. BALASUBRAMANIAN  Y. KANEHIRO 《European Journal of Soil Science》1978,29(1):47-57

The pH₀ and ZPC of two Hydiandepts were determined by potentiomettic titiation in NaCl and by ion adsorption measurements from NH₄NO₃, respectively. The decrease of pH, pH₀, and ZPC due to drying was explained by the hydrolysis reaction. Partial drying, high organic matter content, and low Al₂ O₃ concentration in the surface soil were responsible for its low pH, pH₀ and ZPC. The high pH₀ of subsoils was attributed to the presence of amorphous aluminosilicates and mixed polymeric gels of Fe(III) and A1 with high water content. The significant decrease of nitrate adsorption due to dehydration is discussed in relation to the change in pH, pH₀, ZPC, and surface area on drying.  相似文献   

Substrate suitability of different genotypes of sorghum in relation to Aspergillus infection and aflatoxin production     

Ratnavathi CV  Sashidhar RB 《Journal of agricultural and food chemistry》2003,51(11):3482-3492

Grain sorghum is often damaged by rain in the field and severely infected by grain mold, which includes Aspergillus infection and aflatoxin production. The objective of the study is to investigate the extent of aflatoxin production with Aspergillus infection in vitro in different sorghum genotypes with different pericarps, red, yellow, and white, the physical and chemical characteristics of grain during infection, and the changes in grain polyphenols and phytic acid in comparison to maize and groundnut. The physical characters and biochemical composition of sorghum grain contribute to make it less susceptible to Aspergillus infection and aflatoxin contamination compared to maize and groundnut. The lowest amounts of aflatoxin and ergosterol were observed in genotypes with red pericarp, whereas higher amounts of aflatoxin and ergosterol were found in white genotypes followed by maize and groundnut. All of the red genotypes differ in polyphenol composition and aflatoxin produced, showing resistance to mold damage. Another indication of resistance in red genotypes was the delayed peaking of aflatoxin production (9 days after infection). In red sorghum genotypes there was a significant, positive correlation existing between polyphenol content and aflatoxin produced at 3 and 6 days after infection, the r values being 0.589 and 0.513, respectively. The starch content decreased whereas the protein content in all sorghum genotypes increased during infection. Maximum phytic acid was observed in white sorghum genotypes. Phytic acid in yellow genotypes was found to have a significant negative correlation (r = -0.569) with aflatoxin produced.  相似文献   

Neospora caninum infection and congenital transmission: serological and parasitological study of cows up to the fourth gestation     

Piergili Fioretti D  Pasquali P  Diaferia M  Mangili V  Rosignoli L 《Journal of veterinary medicine. B, Infectious diseases and veterinary public health》2003,50(8):399-404

In this paper, a parasitological and serological study performed in three cows up to the fourth gestation is reported in order to clarify the extent of vertical propagation and, secondly, in which period of gestation the recrudescence of previous infection occurs. The cows selected for the study delivered healthy but congenitally infected calves in first pregnancy. The parasite was found, by biological tests in Swiss mice, in all the placentas of the three cows examined, during the three subsequent gestations, at calving. The parasite was found, at slaughtering, in the brains of all nine calves born clinically healthy from the three cows as well. The serological profile, performed at monthly intervals on serum of the cows, showed that IgG and IgM increased in the third trimester of gestation; this rise of antibodies was constantly observed during the three gestations and in all three cows. In the calves, the IgG titres increase after colostrum consumption and an IgM peak at birth, were indicative of a late infection. These findings, along with negative results obtained by a serological study conducted simultaneously on 38 cows housed in the same stable as the experimental animals and the negative results obtained in isolating parasite or antibodies from farm dogs, suggest that N. caninum infection can be maintained over several bovine generations and that recrudescing persistent infection, rather than a new infection, explains the Neospora infection of calves.  相似文献   

Rumen-protected choline administration to transition cows: effects on milk production and vitamin E status   总被引：1，自引：0，他引：1  

Pinotti L  Baldi A  Politis I  Rebucci R  Sangalli L  Dell'Orto V 《Journal of veterinary medicine. A, Physiology, pathology, clinical medicine》2003,50(1):18-21

We investigated the influence of rumen-protected choline (RPC) supplementation on milk production, lipid metabolism and vitamin E status in dairy cows receiving a silage-based diet. Twenty-six Italian Holstein multiparous cows were assigned by weight and average production in the previous lactation, to one of two groups: control (no RPC supplementation) and RPC (supplemented with 20 g/day rumen-protected choline chloride). Treatment began 14 days before expected calving and continued for 30 days after parturition. Choline administration significantly increased milk production during the first month of lactation and also the concentration (and total secretion) of choline in milk, but did not affect fat or protein concentrations in milk, or plasma levels of glucose, beta-hydroxybutyrate, cholesterol and non-esterified fatty acids (NEFA). However, around parturition, NEFA concentrations in plasma were lower in treated animals than in controls, suggesting improved lipid metabolism as a result of choline supplementation. Choline supplementation also increased alpha-tocopherol plasma concentrations, suggesting a novel aspect in dairy cows.  相似文献