The article presents the results of experimental studies on the influence of various levels of methionine in feed on the productivity of growing rabbits. The research was conducted in the conditions of the problematic research laboratory of feed additives of the National University of Life and Environmental Sciences of Ukraine. Experiment was carried out on young rabbits HYLA hybrids of the French company EUROLAP, of which, on the principle of analogues, four groups were formed – control and 3 experimental, with 20 heads (10 females and 10 males) in each. The experiment lasted 42 days. Every week we conducted individual weighings of the experimental animals, calculation of weight gains and feed costs. For feeding of the experimental rabbits were used diets, which were balanced by energy and main nutritional elements, but differed in the content of methionine – the rabbits of the control group consumed feed containing methionine 0.29%, the second – 0.41%, the third – 0.54%, the fourth – 0.66%. Diet consisted of wheat bran, sunflower meal, sunflower hulls, alfalfa grass meal, premix and bone concentrate. At the 84th day of age, the largest body weight was in rabbits, which consumed feed containing methionine 0.41% – 3005.4 g, which is on 3.2% (P < 0.01) more than in the control. Over the entire period of the experiment largest absolute increase was observed in rabbits of second group (0.41% of methionine) and preponderated the indicator of animals of control group at 5.7% (P < 0.001). The average daily gain for the entire period of the experiment was the highest in rabbits of the second group, which was on 5.8% (P < 0.001) more than in control. Calculations of feed costs for the period of growth 42–84 days indicate that the rabbits that consumed a feed containing 0.66% methionine per 1 kg of body weight gain consumed it by 2.3% less than control, and those who consumed feed with contents 0.54% methionine – by 1.5% less, 0.41% methionine – by 1.2% less. According to experimental results, we can conclude that for maximum increases in body weight with moderate cost of feed per unit of weight must use diet containing methionine 0.41%.
EFFECT OF SUPPLEMENTATION OF VARIOUS LEVELS OF GUANIDINOACETIC TO QUAILS DIET: EFFECTS ON PRODUCTIVITY AND CARCASS QUALITY M. Sychov, H. Pryumak National University of Life and Environmental Sciences of Ukraine, Kyiv, Ukraine, E-mail: sychov@ukr.netThe authors have investigated the effect of different levels guanidinoacetic acid in the diets of quails on their productivity and carcass quality. Experimental studies were carried out in the conditions of the problematic research laboratory of feed additives in the National University of Life and Environmental Sciences of Ukraine. Material for scientific and economic experience was quail of Pharaoh species of meat direction of productivity. The experiment was carried out by method of groups-analogues. Compound feed were fed in dry crumbled form. Young animals were fed in a group. The daily amount of compound feed was divided in two parts -morning and evening rations. The effect of using different levels of Guanidinoacetic Acid (GAA) in compound feed on productivity and carcass quality of young quails was studied. We have found that compound feed with the level of GАА 0.06% contributes to live body weight increase by 3.9 g and muscles of the pelvic limbs yield by 26.2%. At the same time, use of diets with a level of 0.12% of guanidine acetate increases live weight by 13.5 g, the absolute growth of 6.5 g, average daily growth by 0.9 g, a relative growth of 2%, the mass of carcass, semi-eviscerated carcass, and eviscerated carcass of 4.8, 4.9 and 4.3% correspondingly, slightly increases the mass of pectoral muscles by 9.1%, significantly increases the yield of muscles of the pelvic limbs by 36.4%, and reduces feed conversion by 5%. Poultry which was fed with 0.18% of GАА exceeded control of body weight by 12.2 g, the absolute growth by 4.4 g, average daily growth by 0.6 g, the relative growth by 1.1%, yield of muscles of the pelvic limbs by 36.4% and had a lower feed conversion rate by 9.1%. During the study period the safety of livestock which was fed with GААvwas high and ranged from 90 to 96%. It was established the perspective of further research, which is to examine the impact of Guanidinoacetic Acid on the egg production of egg-laying quails, morphological and chemical composition of eggs and their hatching quality.
Based on the results of the analysis of feed materials on the content of micronutrient elements and conducting scientific experiments on broilers chicken, the most effective source of Manganese, Zinc, Iron and Copper in mixed feeds, which contributes to solving the problem of increasing the quality of feeding and intensifying the growth of poultry has been substantiated. The optimum source of essential elements (Mn, Zn, Fe, Cu) for broilers chicken through feeds, the level of their incorporation into mixed fodders have been experimentally determined, and their influence on productivity and feed costs per 1 kg of body weight gain have been investigated. The tasks set in the work have been solved experimentally using analytical (analysis of literature sources), zoo-technical (growth indices, feed intake) and statistical (processing of the results obtained) methods of research. The use of mixed feeds in feeding broilers chicken which contained glycinate of Manganese, Zinc, Iron and Copper making 75 % of the needs, contributes to increasing their body weight by 2.5 % and increasing the growth rate by 2.4 %. Feed costs per 1 kg of broilers chicken growth were 1.5 % lower than the young bird index of the control group.
Experimental studies conducted in terms of problem research laboratory of feed additives National University of Life and Environmental Sciences of Ukraine. Independent experiment was conducted with growing Pharaoh Coturnix quails to determine the optimal valine-to-protein ratio for quail development. We conducted a randomized block experiment with 4 treatments, each with 5 replicates of 25 growing birds (1 to 35 d of age). A diet consisting of soybean and sunflower meal, wheat, corn, Fish meal, sunflower oil, concentrate (28% CP, 2.88 kcal/g on 1 to 21d of age, 20.5 % CP, 2.97 kcal/g on 22 to 35 d of age) having severally 1.54 and 1.33 % valine served as basal feed. Valine was supplemented in four graded levels up to 2.10 g/100 g on 1 to 21d of age and 1.54 g/100 g on 22 to 35 d of age at the expense of L-valine. Diets and water were offered ad libitum. Body weight gain and feed/gain ratio were studied. Quails significantly responded to the increasing valine concentration in growth, feed/gain ratio. Analysis was used to calculate the Valine nutrient recommendations. These estimates were 1.28 % for the starter and 1.23 % for the total Val for the grower period. Supplementation with Valine to the base diet resulted in body weight gain of quails equal to those fed the control diet (p<0.01). Експериментальні дослідження проводились в умовах проблемної науково-дослідної лабораторії кормових добавок Національного університету біоресурсів і природокористування України. Було проведено науково-господарський дослід на молодняку перепелів породи фараон з визначення оптимального рівня валіну. Дослід проводився за методом груп. Птахи були поділені на 5 груп, кожна з яких складалася з 4 підгруп по 25 добових перепелів кожна (перепелів вирощували від 1 до 35 діб). Базові комбікорми, що складалися з соєвої макухи, соняшникового шроту, пшениці, кукурудзи, рибного борошна, соняшникової олії та концентрату (28 % СП, 2,88 ккал/г у віці від 1 до 21 діб, 20,5 % СП, 2,97 ккал/г у віці від 22 до 35 діб), містили відповідно 1,54 та 1,33 % валіну. Вміст валіну збільшували у інших чотирьох групах відповідно до 2,10 г/100 г та 1,54 г/ 100 г за рахунок додавання L-валіну. Комбікорми та воду перепели отримували вволю. Встановлено збільшення маси тіла та зменшення витрат корму на 1 кг приросту маси тіла залежно від рівня валіну в кормі. Перепели не лінійно відреагували на підвищення рівня валіну в раціоні. Проаналізувавши результати досліджень було рекомендовано використовувати комбікорм з рівнем валіну 1,28% для стартового періоду і 1,23% для ростового періоду вирощування. Додаткове введення валіну сприяло збільшенню маси тіла перепелів (р<0,01), а витрати корму на 1 кг приросту були на 2,3 % меншими за контроль. Ключові слова: перепели; L-валін; маса тіла; конверсія корму; комбікорм
The productivity of young meat quails was estimated at use of feed with different levels of arginine. Experimental studies were conducted in course of Problem Research Laboratory of feed additives of National University of Life and Environmental Sciences of Ukraine. Pharaoh quails were used for scientific experiment that was carried out by method of analog groups. Arginine level contamination in the diets of experimental groups was regulated by the introduction of feed synthetic analogs of amino acid. Part of arginine in mixed fodder of poultry control group was 1.57 % in the fodder of quails of 2-nd, 3-rd, 4-th and 5-th research groups and that were 1.39, 1.48, 1.66, 1.75 % respectively. The feeding of the was done by group and feed was distributed twice -in morning and evening. Ii was proved that the feeding of quails by mix fodder with arginine content of 1.66% contributes to increment of the live weight by 2.6 % on average, daily gain -by 2.7 %, the weight before slaughter by 3 % and reduce the cost of feed per 1 kg of growth by 1.5 %. This could contribute to the further research of arginine-lysine optimal ratio in mixed fodder for quails and their impact on zootechnical indices. Проведено оцінку продуктивності молодняку перепелів, яких вирощували на м'ясо, за використання комбікормів з різними рівнями аргініну. Експериментальні дослідження проводились в умовах проблемної науково-дослідної лабораторії кормових добавок Національного університету біоресурсів і природокористування України. Матеріалом для науково-господарського досліду були перепели породи фараон. Дослід проводився за методом груп-аналогів. Рівень аргініну у раціонах дослідних груп регулювався за рахунок введення до комбікорму синтетичних аналогів цієї амінокислоти методами вагового дозування та багатоступеневого змішування. Кількість аргініну у комбікормі для птиці контрольної групи складала 1,57 %, у раціонах перепелів 2-ї, 3-ї, 4-ї та 5-ї дослідних груп -відповідно 1,39, 1,48, 1,66 та 1,75 %. Комбікорми згодовували у сухому розсипному вигляді. Годівля молодняку була груповою. Добову кількість комбікорму роздавали дворазово -вранці та ввечері. Встановлено, що згодовування перепелам комбікорму із вмістом аргініну 1,66 % сприяє збільшенню їх живої маси на 2,6 %, середньодобових приростів -на 2,7 %, передзабійної маси на 3 %, маси непатраної тушки -на 4,4 %, напівпатраної тушки -на 2,6 % та патраної тушки -на 2,9 %.та зниженню витрат корму на 1 кг приросту на 1,1 %. Встановлено перспективу подальших досліджень, яка полягає у встановленні оптимального співвідношення аргініну до лізину у комбікормах для перепелів та виявлення їх впливу на зоотехнічні та забійні показники птиці. Keywords Ключові слова: перепели; аргінін; комбікорм; зоотехнічні показники Citation:Ibatullin, I., Omelian, A., Sychov, M. (2016). Impact of different levels of arginine on zootechnical indices and slaughter characteristics of young quails.
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