Эффективность использования кормовых добавок при откорме каракульских баранчиков

Аннотация

This article presents the results of stall fattening of 6-month-old Karakul lamds using feed additives in the complex: bentonite as a source of minerals; probiotic "Baktovit" as a natural bio stimulant and carbamide as a source of nitrogen and increasing the protein nutritional value of diets for ruminants, chlorella algae suspension as a source of biologically active substances. The results are presented by the data obtained by the live weight gain of experimental animals and feed consumption per unit of weight gain. Keywords: karakul rams, fattening, bentonite, carbamide, probiotic, chlorella. ЭФФЕКТИВНОСТЬ ИСПОЛЬЗОВАНИЯ КОРМОВЫХ ДОБАВОК ПРИ ОТКОРМЕ КАРАКУЛЬСКИХ БАРАНЧИКОВ Аннотация: в данной статье приводятся результаты стойлового откорма баранчиков каракульской породы 6 месячного возраста с использованием кормовых добавок в комплексе: бентонита в качестве источника минеральных веществ; пробиотика «Бактовит» в качестве натурального биостимулятора; карбамида, как источник азота и повышения протеиновой питательности рационов для жвачных животных и суспензии водоросли хлорелла в качестве источника биологически активных веществ. Результаты представлены данными полученных привесов живой массы подопытных животных и расходами кормов на единицу привеса. Ключевые слова: каракульские баранчики, откорм, бентонит, карбамид, пробиотик, хлорелла. QORAKO‘L QO‘CHQORCHALARINI BO‘RDOQIDA BOQISHDA QO‘SHIMCHA OZUQALARDAN FOYDADALNISH SAMARADORLIGI Annotatsiya: Ushbu maqolada 6 oylik qorako‘l zotli qo‘chqorchalarni bo‘rdoqiga boqishda ozuqaviy qo‘shimchalar sifatida: minerallar manbai sifatida gilmoya; tabbiy biostimulyator sifatida ozuqaviy probiotik “Baktovit”; azot manbai sifatida va kavsh qaytaruvchi hayvonlar ratsionining proteinli to‘yimliligini oshirishda foydalanish mumkin bo‘lgan karbamid hamda biologik faol moddalar manbai sifatida xlorella suv o‘tining suspenziyalaridan foydalanish samaradoligi keltirilgan. Tajriba natijalari sifatida tajriba ostidagi hayvonlar tirik vaznining ozgarishi va ularning o‘sishi uchun sarflangan ozuqa xarajatlari bilan bayon etilgan. 384 Introduction. Karakul breeding is one of the main branches of agriculture in Uzbekistan. The fodder base of this industry is formed by of natural pasturelands. However, the global problem of climate warming and without controlled grazing, expands the degradation of pastures, which leads to decrease in their productivity. Therefore, an important task of conducting effective sheep breeding is innovative solutions for the organization of full-fledged feeding using feed additives, which make it possible to increase the energy and biological value of diets. The following types can be considered as effective feed additives. For example, the study of the role of probiotics as a feed additive has received a new direction in the field of biotechnology. The Institute of Microbiology of the Academy of Sciences of the Republic of Uzbekistan has developed a biologically active additive "Baktovit". Analysis of studies showed a positive effect of the probiotic on the morphological and immunobiological composition of the blood, activation of defense systems and an increase in the immune properties of animals, growth rates and an increase in the digestibility of dietary nutrients, which led to a 20% feed savings [2, c.346-349]. Microalgae and some photoautotrophic unicellular algae are widely used in animal husbandry as biologically active feed additives in animal nutrition. It can be noted that among unicellular algae, chlorella has been sufficiently studied as a feed supplement, including in Karakul sheep breeding. In the 70-80s of the last century, chlorella received scientific confirmation of the effectiveness of its use as a feed additive, however, it did not find a technical solution for wide application. One of the non-traditional feed additives is bentonite clay, which has the ability to adsorb poisons, bacteria and toxins, envelop the inflammatory mucous membranes of the digestive tract, and at the same time are a source of macro- and microelements. Under the conditions of Uzbekistan, bentonite of Azkamar fild received a recommendation for use as a mineral supplement. Domestic scientists have developed and approved the specifications for this clay used as mineral additives in the diets of farm animals [4, p. 2-5]. In the practice of animal husbandry, synthetic nitrogen-containing substances in the form of carbamide and others are used to increase the protein nutritional value of diets. They can only be used in the feeding of ruminants capable of using non-protein nitrogen for the synthesis of their own body by ruminant microorganisms. When using carbamide in feeding, it is necessary to adhere to strict recommendations for their use, which makes it possible to provide protein nutrition in the diets of ruminants for 25- 30% of its total requirement [3, p. 33-40]. Taking into account the above, we carried out scientific experiments on the stall fattening of lambs