ISOLATION AND CHARACTERIZATION OF MYCOPLASMA AND ACHOLEPLASMA FROM PNEUMONIC LUNGS OF GOATS SLAUGHTERED AT FAISALABAD ABATTOIR 0
Among the goats slaughtered at Faisalabad abattoir, pneumonic lungs were collected from 50 animals suspected for contagious caprine pleuropneumonia (CCPP). These samples were subjected to bacteriological studies and 8 isolates were recovered. On the basis of morphological, biochemical a 1d serological characteristics, these were identified as Mycoplasma mycoides subspecies capri (4), acholeplasmas (2) and unidentified mycoplasmas (2).
Isolation of Mycoplasma mycoides from outbreaks of caprine mycoplasmosis in Brazil.
Abstract Two outbreaks of mycoplasmosis in goats apparently caused by organisms found to be related both to Mycoplasma mycoides subsp. capri (PG3) and to the LC biovar of Mycoplasma mycoides subsp. mycoides (Y-goat), are described for the first time in Brazil. The disease affected mainly young goats and was characterized by pneumonia and other respiratory symptoms, kerato-conjunctivitis and septic arthritis. Morbidity and mortality in kids up to four months old were 90 and 65%, respectively.
Effect of Soybean Cyst Nematode (Heterodera glycines) on Yield of Resistant and Susceptible Soybean Cultivars Grown in Ohio.
Soybean (Glycine max) producers in Ohio rarely use soybean cyst nematode (Heterodera glycines, SCN)-resistant cultivars because of concerns over limited yield potential and lack of resistance to Phytophthora sojae. A two-year study was initiated to determine grain yield and nematode population increase on soybean cyst nematode-resistant cultivars in maturity groups II and III in production fields. Sites differed in soil texture, nematode densities, and P. sojae infestation at a number of locations in Ohio. Soil was assayed for nematode densities before planting and at harvest. Yields of resistant cultivars averaged 0% to 18% higher than those of susceptible cultivars in fine-textured soils with average preplant populations ranging from 463 to 14,330 SCN eggs/100 cm(3) soil. In coarse-textured soils, yields of susceptible cultivars were 21% to 56% less than the resistant cultivars with average preplant densities ranging from 1,661 to 15,558 SCN eggs/100 cm(3) soil. The reproductive index ranged from 0.1 to 5.5 for resistant cultivars and 0.4 to 112 for susceptible cultivars. In 1993, yield of P. sojae-susceptible, nematode-resistant 'Asgrow A 3431' was as high as yield of the P. sojae-resistant, nematode-susceptible cultivar 'Resnik' in a Phytophthora-infested field. The nematode-resistant cultivars Madison Experimental 131527 and Asgrow A3431 had higher yields than AgVenture AV1341 and susceptible cultivars Resnik and Kenwood when compared over five nematode-infested sites. Nematode-resistant cultivars were found to be excellent alternatives to currently grown susceptible cultivars for managing SCN where group III cultivars are used. However, better cultivar alternatives may be needed for sites with combined Phytophthora root rot and cyst nematode problems.