[Using baitril produced by the Bayer Company to prevent and treat avian respiratory mycoplasmosis]
2007
Lysko, S.B.,Siberia Research and Development Institute of Poultry Breeding, Omsk region (Russian Federation | Krasikov, A.P.,Institute of Veterinary Medicine of Omsk State University, Omsk (Russian Federation)
In experimental conditions on embryonated eggs eggs, broiler chickens, laying hens, and roosters, cross "Sibiryak-2" there were studied various routes of preventing and treating avian respiratory mycoplasmosis (RM) associated with escherichiosis in field conditions. As is found, laying hens and roosters are latent carrier of Mycoplasma gallisepticum, excrete spermatic mycoplasma. In young fowls RM is often associative, in 72% of cases prevails mycoplasmosis complicated with Escherichia coli. Treatment of eggs before incubation with a farmazine solution by the direct temperature fall method from +38 degrees to+5 degrees C provides their disinfection from mycoplasmas increasing the egg hatchability by 1.3% and survivability by 5%. Ciprofloxacin or tartrate tilosyn used in field conditions for 5 days to the parent breeding flock monthly increase the survivability by 4.9 and 5.3%, respectively, egg productivity of laying hens by 3.8 and 0.5% and reduce the population of fowls carrying mycoplasmas by 80 and 87%. A single use of ciprofloxacin or tartrate tilosyn for broilers with mixed infection in combination with probiotic "Astra-2" (within 42 days) increases the survivability up to 99 and 98.7%, respectively allowing to rear healthy young fowls. When given ciprofloxacin for therapeutic purpose for 5 days and probiotic "Astra-2" for 20 days, the fowl survivability increases by 2% to reduce mycoplasmas-carrying chickens by 20%. It is recommended to control the efficacy of the prophylactic and treating routes for RM by means of EIA and serous drop agglutination tests finding out residual mycoplasma carriage by the bacteriological method. The profitability of the therapeutic and prophylactic actions developed in field condition was for young fowls from 2.3 to 11.7 rub, for the breeding flock – 10.2 to 20.8 rub per 1 rub cost.
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