Згодовування різних доз кормової добавки нупро та її вплив на продуктивність курчат-бройлерів

Abstract

Наведено показники живої маси, збереженості, перетравності поживних речовин, хімічного складу м’яса за згодовування кормової добавки НуПро (нуклеопротеїн) у складі комбікорму з масовою часткою 1, 2, 3 і 4%. За комплексною оцінкою результатів досліджень, оптимальною дозою НуПро в комбікормі для курчат-бройлерів упродовж 7-ми діб стартового періоду є 20 г/кг корму.

Приведены показатели живой массы, сохранности, интенсивности роста, химического состава мяса при скармливании кормовой добавки НуПро ( нуклеопротеин ) в составе комбикорма с массовой долей 1, 2, 3 и 4%. По комплексной оценке результатов исследований , оптимальной дозой НуПро в комбикорме для цыплят -бройлеров в течение 7 -ми суток стартового периода является 20 г / кг корма.

Because of the high rate of growth, broiler chickens are too sensitive to body provision of necessary amount of nutritious, mineral and biologically active substances. It is extremely important for them to balance the diet, particularly at an early age, in the first and second weeks of their life, when a chicken is almost not adapted to the environment, and is submitted to the influence of various stress factors. As is well known, enzymatic system of digestive tract in chickens is formed within 7-10 days. With getting a significant portion of nutrients and energy from the rest of yolk in the first 2-3 days. Therefore, in this period rations for broiler chickens must contain easily digestible nutrients, and feed ingredients must be chopped to a particle size of 0. 9-0. 12 mm in diameter. Directly for the experiment, in the poultry house 500 heads of broiler chickens were chosen, which were divided into 5 groups of 100 heads each. Starting from the first day, the chickens of the 1 (control) group were fed with an adequate combined feed and the poultry of the 2,3,4,5 experimental groups got the same combined feed, but during the first 7 days with the mass particle of NuPro preparation, respectively – 1,2,3,4% in it. The results of the experiment showed that the introduction in the combined feed of 1-4% of mass particle of NuPro improved a rate of growth of experimental broilers. If the average daily weight gain for the 1st week in the control chickens was 21. 7 grams, then in their analogues of the 2, 3, 4 and 5th experimental groups it was by 6. 8; 8. 7; 7. 3 and 4. 2% more. The body weight of broilers of the 2-4th research groups in 42-day age and was also higher and amounted 2622. 8-2764. 1 against 2534. 8 g in control, - with a simultaneous reduction in feed cost on the amount of growth by 1. 1- 2. 2%. Inclusion of NuPro in the feed in the first week of broiler chickens life increases the potential for improving of digestibility of nutrients, nitrogen fixation and mineral elements that appears to increase the growth intensity of poultry throughout the whole growing period; According to the overall assessment of the results of the experiment, the optimal dose of NuPro in the combined feed is 20 kg/t.