Pharmacological prevention of stress during chicken debeaking

Results of comparative study of efficiency of antistress pharmacological means during debeaking of chickens are presented, and ratios of heterophil to lymphocytes blood, oxidizing modifications of proteins and concentration of ceruloplasmin in blood plasma, and safety and gain of body weight of chickens are studied. Way of prevention of the stress developing after debeaking of chickens at 5–6 days, including use of the developed pharmacological compositions of the SM-complex from birth to 10-days of age daily with water in a dose of 300 mg/kg of body weight within the first 7 days of life of chickens and the SPAO-complex in a dose of 240 mg/kg of body weight with water, according to the scheme 2 days prior to debeaking, on the day of debeaking, and within 2 days after operation and vitamin K with forage in a dose of 100 mg within 4 days; beginning application 3 days before debeaking allows to effectively prevent stress, to lower withdrawal of chickens, and to raise an average daily gain of body weight.