Application of Immunological Control for Prognosis the Productivity of Karakul Sheep

The article provides recommendations on the use of immunological methods and criteria for assessing level natural resistance, in order to select animals with high resistance. Karakul sheep sur (brown) color having a concentration common immune proteins serum blood (CIPSB) quantitative method 32–50 mg/ml semi–quantitative 1.1–2.0 conventional units, cellular immunity according skin reaction (delayed hypersensitivity DHR) 7.0–9.0 mm are classified as highly resistant; CIPSB 18–31 0.71–1.0 conv. DHR test 5–6 medium–resistant respectively 13–17 0.4–0.66 3–4 lower low–resistant group animals. indexes 8–12 less 0.25–0.45 units indicator method, T–cell activity 1.0–2.0 characterize immunodeficiency condition. Studies have shown that productivity karakul resistance was higher than ones. lambs medium reactivity quickly regained body weight after stress factors weaning period, were better fed weighed 33.6±0.45 34.5±0.35 kg at 8 months age, gain during pasture fattening period 8.2 ± 0.16 8.4± 0.11 kg, respectively, average daily 91.1 g 93.3 g, while low 30.3 0.46 where over entire 6.7 0.12 an 74.4 g. Body which suffered conditions various colostral–milk periods 28.1 0.75 6.2 0.08 68.8 meat (slaughter weight) 2.03 2.71 or 14.03 % 17.9 3.24 3.92 22.4 25.9 compared had syndromes.