scholarly journals DETERMINATION OF MEAT PRODUCTIVITY OF «BLAGOVARSKY» CROSS DUCKS

2021 ◽  
Vol 20 (4) ◽  
pp. 29-33
Author(s):  
D. Terzeman ◽  
O. Karunskyi
Keyword(s):  
Live Weight ◽  
Feed Consumption ◽  
Control Group ◽  
Protein Ratio ◽  
Feed Composition ◽  
Meat Productivity ◽  
High Level ◽  
Positive Effect ◽  
Experimental Group ◽  
Nutrients Digestibility

Feeding is the main condition for high productivity of ducks. It provides the need for metabolizable energy and nutrients according to modern standards. Ducks have an increased need for arginine, histidine, tryptophan, glycine, threonine and valine, therefore much attention is paid to the amino acid composition of feed in normalizing feeding. It is also important to consider the level of digestibility of the proposed feed. The feed nutrients digestibility depends on various factors and therefore varies considerably.Optimal ratios of carbohydrates, proteins, fats, etc. in the diet contribute to a high level of digestibility. The level of fiber and protein significantly affects the digestibility of nutrients in the feed. Increasing the amount of fiber (especially rich in lignin) reduces the digestibility of fiber and other nutrients. Essential influence on the nutrients digestibility is caused by the available protein content in the feed and its ratio with carbohydrates and fats. In this regard, the protein ratio of feed is determined. The protein ratio shows how many parts of digested nitrogen-free nutrients account for each part of digested protein.In addition, the feed preparation for feeding has a positive effect on their digestibility (moisturizing, enriching, grinding, steaming and others). The nutrients digestibility is also affected by different levels of macro-, micronutrients and vitamins in the feed. Increasing the feed nutrients digestibility is an important factor in reducing their costs, the cost of livestock products and improving the economic efficiency of the industry. Young ducks are characterized by precocity and high growth rate. At the age of 7 weeks, the live weight of hybrid young ducks is 3.2 – 3.4 kg, and during this period the initial weight increases more than 60 times at a feed consumption per 1 kg gain of 2.8 - 3.0 kg and average daily gain 64 - 68 g.The positive effect of the use of the developed vitamin-mineral premix in the compound feed composition on the meat productivity of “Blagovarsky” cross ducks has been determined. It was determined that from the third week of growing the live weight of young ducks of the experimental group was higher of analogues of the control group for 3,2 %. Analysis the main indicators of young ducks productivity showed that the bird of the experimental group exceeded analogues in the following periods of growth: 0 - 7 days, 15 - 21 days, 29 - 35 days, 36 - 42 days, 43 - 49 days.Survival rate of young ducks was at a high level in the range of 97 – 99.5 % for the entire period of growing in both groups. Starting from the 4th week of growing, the survival rate decreased slightly in the control group and amounted to 99.1, which is 0,2 % less than in the experimental group. The increased concentration of premix in the compound feed for the young ducks of the experimental group help to improve their slaughter qualities in comparison with the control group.

The joint use of enzyme drugs and lecithin in the rearing of broiler chickens

2021 ◽  
pp. 41-46
Author(s):  
B. S. Kaloev ◽  
M. O. Ibragimov ◽  
M. M. Shagaipov
Keyword(s):  
Broiler Chickens ◽  
Live Weight ◽  
Biologically Active ◽  
Feed Consumption ◽  
Control Group ◽  
Growing Period ◽  
Production Experiment ◽  
Productive Traits ◽  
Positive Effect ◽  
Experimental Group

The reliability of the results obtained in scientific and economic experiments on the study of the effectiveness of the use of various feed components, including biologically active substances in the rearing of broilers needs to be confi rmed in production conditions. The purpose of the research was to study the joint use of enzyme drugs and lecithin in the rearing of broiler chickens. The results of production experiment on the study of the effectiveness of the joint inclusion of enzyme drugs Sunzyme and Sunfyse 5000 as well as lecithin in the diet of broiler chickens of the cross Ross-308 have been presented in the article. Production tests have been carried out under the conditions of the breeding farm “Achkhoy– Martanovsky” in the Chechen Republic. The duration of the experiment was 45 days. For research on the principle of analog groups two groups have been formed: a control group and an experimental group of 1000 heads in each. The broilers of the control group have been fed compound feed prepared in accordance with the growing period and consisting mainly of grain components of local production. The broilers of the experimental group have been fed the same compound feed, but with the addition of two enzyme drugs Sanzyme and Sanfyse 5000 (100 g/t of feed) as well as lecithin (10 g/kg of feed). The results of the production experiment fully confi rmed the data obtained in the scientific and economic experiment. The positive effect of the joint use of the studied enzyme drugs and lecithin has been manifested in all the studied productive traits. In particular, the increase in live weight of broilers increased by 12,1 %, slaughter yield by 3,5 %, the yield of carcasses of the 1st category by 3,0 %. The main economic indicators also found their confirmation: feed consumption per unit of growth decreased by 11,7 %, additional profit was received in the amount of 27308,2 rubles, the level of profitability of broiler rearing increased by 18,4 %.

scholarly journals MORPHO-BIOCHEMICAL AND PRODUCTIVE INDICATORS OF DUCK-BROILERS WHEN USING PROBIOTIC "LACTOBIFADOL"

2021 ◽  
Vol 248 (4) ◽  
pp. 254-260
Author(s):  
A.F. Khabirov ◽  
◽  
Keyword(s):  
Weight Gain ◽  
Live Weight ◽  
Feed Consumption ◽  
Control Group ◽  
Live Weight Gain ◽  
Positive Effect ◽  
Experimental Group ◽  
Average Consumption

The reaction of the organism of broiler ducklings to the introduction of the probiotic additive "Lactobifadol" into the organism when reared up to 7 weeks of age was investigated. A positive effect was achieved to increase the live weight of the experimental poultry by 5.0 % (p <0.5), the average feed consumption per 1 kg of live weight gain in the group of broiler ducklings fed with Lactobifadol feed was 4.7 % less when compared to intact poultry. The dynamics of feed consumption per 1 kg of live weight gain in the first three weeks of rearing was descending, and from 4 weeks of age until the end of rearing, fodder consumption increased significantly. For 6 weeks of growing, the average consumption of compound feed per head per day in the control group of broiler ducklings was 157.5 g, in the experimental group – 158.5 g per 1 bird/day. The inclusion of "Lactobifadol" in the diet to a certain extent stimulates the processes of erythrocytopoiesis, providing, within the physiological norm, an increase in the level of hemoglobin and the number of leukocytes.

INFLUENCE OF ENZYMATIC-PROBIOTIC DRUGS ON FOOD BEHAVIOR AND MILK PRODUCTIVITY OF TRANSPORT COWS

2020 ◽  
Author(s):  
Ю.М. СМИРНОВА ◽  
А.В. ПЛАТОНОВ
Keyword(s):  
Milk Yield ◽  
Live Weight ◽  
Feed Consumption ◽  
Feed Additive ◽  
Control Group ◽  
Cellulolytic Bacteria ◽  
Milk Productivity ◽  
Productivity Level ◽  
Positive Effect ◽  
Experimental Group

Изучены особенности пищевого поведения коров-первотелок при скармливании ферментативно-пробиотических препаратов. Для изучения влияния пробиотиков на основе целюлозолитических бактерий рубца жвачных проводился опыт в условиях хозяйства Вологодской области. Были сформированы 3 группы первотелок черно-пестрой породы по 12 голов методом пар-аналогов с учетом кровности, удоя матерей за наивысшую лактацию, живой массы, количества дойных дней после отела и суточного удоя. Животные контрольной группы получали основной рацион,  коровам I опытной группы дополнительно скармливали по 50 г на 1 голову в сутки кормовую добавку на основе целюлозолитических бактерий рубца коров, а II опытной — такое же количество добавки на основе целюлозолитических бактерий рубца оленей. Продолжительность скармливания добавок составляла 90 дней. В результате исследований было установлено, что использование ферментативно-пробиотических препаратов положительно повлияло на пищевую активность и уровень молочной продуктивности первотелок. Коровы I и II опытных групп, получавшие дополнительно к основному рациону ферментативно-пробиотические препараты в сравнении с контрольной группой имели более высокие показатели по затратам времени на потребление корма — 8 и 25 мин., соответственно. Время, затраченное на жвачку, у первотелок II опытной группы было больше на 12 мин., чем у животных контрольной группы, в результате индекс пищевой активности у них был выше на 0,026 по сравнению с контролем. Использование добавок способствовало увеличению молочной продуктивности коров I и II опытных групп, по сравнению с контрольной, на 207 и 151 кг. Полученные результаты подтверждают положительное влияние ферментативно-пробиотических препаратов в кормлении коров, так как они способствуют повышению их пищевой активности и молочной продуктивности. The features of first-born cows’ nutritional behavior when feeding enzyme-probiotic preparations have been studied. To study the effect of probiotics based on the ruminants’ cellulolytic rumen bacteria, an experiment on a farm in the Vologda Oblast has been conducted. There were formed 3 groups of black-and-white first-born cows of 12 heads by the method of pairs-analogues, taking into account pedigree, mothers’ milk yield for the highest lactation, live weight, the number of milking days after calving and daily milk yield. The animals of the control group received the main diet, the cows of the I experimental group were additionally fed 50 g per 1 head per day of a feed additive based on cellulolytic bacteria of cow rumen, and the II experimental group were fed the same amount of an additive based on cellulolytic bacteria of deer rumen. The duration of feeding the additives was 90 days. The research found that the use of enzyme-probiotic preparations had a positive effect on the first-born cows’ nutritional activity and milk productivity level. The cows of the I and II experimental groups who received enzyme-probiotic preparations in addition to the main diet had higher indicators for the time spent on feed consumption in comparison with the control group — 8 and 25 minutes, respectively. The time spent on rumination was 12 minutes longer in the first group of experimental animals than in the control group; as a result, their food activity index was higher by 0.026 compared to the control group. The use of additives contributed to an increase in the milk productivity of cows of the I and II experimental groups, compared with the control group, by 207 and 151 kg. The obtained results confirm the positive effect of enzyme-probiotic preparations when feeding cows, as they help to increase their nutritional activity and milk productivity.

The influence of compound feed with the enzyme Axtra XAP 101 on the growth, feed conversion and livability of broiler chickens

2020 ◽  
pp. 45-51
Author(s):  
N. Yu. Krotova ◽  
A. Y. Lavrentiev ◽  
V. S. Sherne
Keyword(s):  
Broiler Chickens ◽  
Live Weight ◽  
Optimal Dose ◽  
Poultry Meat ◽  
Productivity Index ◽  
Control Group ◽  
Feed Conversion ◽  
Meat Productivity ◽  
Positive Effect ◽  
Experimental Group

The poultry industry in Russia has significant prospects for the development of domestic production of eggs and poultry meat. Insufficient attention is paid to the practical application of enzyme drugs, although numerous studies have proven the effectiveness of these substances in feeding animals and poultry. The purpose of the research was to determine the feasibility and effectiveness of using the multi-enzyme drug Axtra XAP 101 produced by DuPont as part of compound feed for growing broiler chickens. A scientific and economic experiment has been carried out and various doses of the multi-enzyme drug Axtra XAP 101 have been experimentally studied as part of compound feed and the optimal dose in the amount of 7–9 % of the dry matter of the compound feed has been identified. Multi-enzyme drug Axtra XAP 101 influences on indices of meat productivity of broiler chickens. It has been found that this drug increases the average daily increase in live weight of broiler chickens, reduces feed conversion and has a positive effect on the livability of livestock. The highest value for livestock livability has been observed in the 3rd experimental group, where it was 97,67 %, which was by 0,32 % higher than in the control group, by 0,5 % higher than in the 1st experimental group and by 0,57 % higher than in the 2nd experimental group. The European productivity index was the highest in the 3rd experimental group and amounted to 412 points. This indicator was higher than in other groups: higher than the control group by 20 points, the 1st experimental group – by 12 points, the 2nd experimental group – by 5 points. Thus, the effect of using enzymes in wheat and barley diets is to increase and equalize the nutritional value of different varieties and batches of grain. Changing the location and mechanism of microbial fermentation as a result of adding an enzyme also has a positive effect on the health of poultry.

scholarly journals The Effect of Natural Phytoadditive Silybum Marianum on Performance of Broiler Rabbits

2019 ◽  
Vol 50 (1) ◽  
pp. 40-45
Author(s):  
A. Pebriansyah ◽  
D. Lukešová ◽  
I. Knížková ◽  
P. Silberová ◽  
P. Kunc
Keyword(s):  
Average Daily Gain ◽  
Live Weight ◽  
Fermented Milk ◽  
Carcass Weight ◽  
Feed Consumption ◽  
Control Group ◽  
Milk Thistle ◽  
Silybum Marianum ◽  
Positive Effect ◽  
Experimental Group

Abstract The effect of different label and processing methods of milk thistle on growth performance in broiler rabbits (HYLA, n = 255) fed with different concentration of milk thistle (Silybum marianum) was studied. Four experiments were conducted. Rabbits were fed with different concentrations of 1% non-fermented milk thistle (experimental group E1) and 0.5% fermented milk thistle (experimental group E2), and the results were compared with a control group C (standard feed ration without any supplementation). Each experiment started at 42 days of rabbits’ age and finished at 85 days of age. Observed parameters were: average daily gain, average daily feed consumption, total feed consumption, slaughter live weight, and carcass weight. The best results were showed in experimental group E2 (supplement of 0.5% fermented milk thistle). Significant differences (P<0.05) were recorded in average daily feed consumption, total feed consumption, slaughter live weight, and carcass weight. The results show that 0.5% fermented milk thistle extract supplemented in the feed ration for broiler rabbits has a positive effect on fattening performance.

Local mineral feed additives in the rations of steers of Hereford breed

2020 ◽  
pp. 28-39
Author(s):  
M. Grigoryev ◽  
N. Chernogradskaya
Keyword(s):  
Economic Effect ◽  
Live Weight ◽  
Negative Influence ◽  
Feed Additives ◽  
The Body ◽  
Control Group ◽  
Mineral Salts ◽  
Meat Productivity ◽  
Experimental Group ◽  
Mineral Feed Additives

Animals imported to Yakutia from other regions fall into feeding and housing conditions that differ from their usual agro-climatic conditions, which causes the problem of their adaptation. Yakutia is one of the areas where the feed of its own production has a lack of basic minerals, which affects the health and productivity of animals, which has an additional negative influence on the adaptation process of imported cattle. In order to replenish macro- and microelements in the body, it is necessary to introduce various local mineral feed additives, premixes, and use mineral salts into the ration. Under the conditions of Central Yakutia the influence of local mineral feed additives (zeolite of the Khonguruu Deposit in the Suntar district and sapropels of local lakes) containing macro- and microelements that increase the meat productivity of steers has been studied. As a result of the research the influence of local mineral feed additives on meat productivity and physiological condition of Hereford steers has been established. Influence of zeolite and sapropel in a complex with mineral salts on digestibility of nutrients of the ration and use of nitrogen, calcium and phosphorus by experimental animals has been defined. The influence of feed additives on the quality of meat products has been studied. The results have shown that the use of local mineral feed additives in the composition of ration of steers during the fattening period at a dose of 0,7 g zeolite per 1 kg of live weight of the animal and 200 g of sapropel in combination with 10 g of mineral salts contributed to the gain in live weight, carcass weight, carcass yield, yield of edible parts, and economic efficiency of fattening. For the entire period of the experiment the gain in live weight in groups was: in control group 2222,9 kg, in the 1st experimental group 2396,2 kg, in the 2nd experimental group 2471,1 kg. The total economic effect for the 1st experimental group for the period of experiment amounted to 44,3 thousand Rubles, for the 2nd experimental group 78,0 thousand Rubles or per 1 head/day 14,06 and 24,76 Rubles, respectively.

scholarly journals Efficiency Of Using Domestic Feed Additive On Biological And Physiological Indicators Of Rabbits

2021 ◽  
Vol 03 (04) ◽  
pp. 1-6
Author(s):  
K. I. Khidirov ◽  
◽  
G. J. Kutlieva ◽  
B. I. Turaeva ◽  
N. A. Elova ◽  
...  
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Live Weight ◽  
Biologically Active ◽  
Feed Additive ◽  
Control Group ◽  
Control Groups ◽  
Physiological Indicators ◽  
High Level ◽  
Experimental Group

Research has been carried out to study the influence of "ProBioKorm Uz", a biologically active feed additive, on the development and physiological characteristics of rabbits of ‘New Zealand’ breed. During the experiment, 2 experimental and a control groups were formed. Adding "ProBioKorm Uz" to the main feed at the rate of 1% and 2% had an increase in experimental group rabbits’ live weight. Average live weight of them was higher by 5,7 %-3.8% than in the control group. Feed units composed 1.59%, dry matter 0.56 kg (3.61%) and crude protein 0.11 kg (3.59%) compared with the control group. Rabbits of experimental groups had higher indicators of erythrocytes concentration by 0.34-1.00 1012/l (10.34-19.53%), leukocytes - by 0.370-0.46 109/l (5.66-8, 06%), as well as a high level of hemoglobin by 7.42-11.08 g/l (6.81-10.08%) and total protein - by 2.40-4.48 (3.64-6, 42%).

Influence of feed additive with Betulin on metabolism and productivity of broiler chickens

2021 ◽  
pp. 3-18
Author(s):  
S. A. Shpуnova ◽  
O. A. Yadrishchenskaya ◽  
T. V. Selina ◽  
E. A. Basova
Keyword(s):  
Broiler Chickens ◽  
Practical Importance ◽  
Live Weight ◽  
Biologically Active ◽  
Feed Consumption ◽  
Feed Additive ◽  
Control Group ◽  
Meat Production ◽  
Birch Bark ◽  
Experimental Group

In order to increase the meat productivity of broiler chickens, increase production volumes and reduce the prime-cost of poultry products, it is necessary not only to ensure balanced feeding and compliance with production technology but also to include in the poultry diet non-traditional additives, biologically active substances that contribute to the normalization of metabolic processes and improve the digestibility of feed nutrients. One of these dietary additives is Betulin extracted from birch bark, which has antioxidant and immunomodulatory properties. In this regard, the purpose of the research was to study the influence of compound feed with the introduction of 2 % feed additive based on a synthetic microspherical nanoporous carbon carrier containing biologically active Betulin in its composition on the productivity of broilers. The results of studies on broiler chickens using compound feed with 2 % feed additive have been presented in the article. It has been found that the feed consumption per 1 kg of live weight gain in poultry of the experimental group have been lower by 9,5 % due to better absorption of nutrients, the live weight of broiler chickens of the experimental group at the age of 42 days was 2625,6 g and it was higher than the control group by 3,68 %. The digestibility of crude protein and fat reached 92,73 and 88,03 %, which exceeded the control group by 1,03 and 3,03 abs.%, respectively. It has been found that the use of compound feed with 2 % of the feed additive with the biologically active substance is of practical importance in connection with the increase in the productivity of broilers and the level of profitability of meat production by 8,2 abs.%.

CONVERSION OF NUTRIENTS AND FEED ENERGY INTO MEAT PRODUCTS DURING FATTENING OF YOUNG KALMYK BREED IN YAKUTIA

2020 ◽  
Vol 15 (5) ◽  
pp. 719-724
Author(s):  
I.I. Sleptsov ◽  
◽  
A.A. Martynov ◽  
Keyword(s):  
Dietary Protein ◽  
Conversion Rate ◽  
Meat Products ◽  
Live Weight ◽  
Control Group ◽  
Food Protein ◽  
Meat Productivity ◽  
Experimental Group

The article presents the results of studies of the bioconversion of nutrients and feed energy into meat products when fattening young Kalmyk breed in Yakutia. The studies were carried out on the basis of the SCHPK Soloyun Megino-Kangalassky region. The experiment was organized on Kalmyk gobies fed from 17 to 18 months of age. For the experiments, 2 groups of animals were formed, which were divided into control and experimental groups. The control group consumed the main diet, the experimental group additionally consumed 200 g of Suntarsky zeolite per head. The main diet of animals by structure consisted of meadow hay 46%, haylage – 22% and mixed fodder 32% or 11.95 ECU per day. During the experiment, the live weight of the animals was almost identical. At the end of fattening, the animals of the control group yielded to the bulls of the experimental group by 3.5%. It was found that the gobies of the experimental group had higher indicators of meat productivity, which affected bioconversion. The analysis showed that the control group of bulls yielded to the experimental group in terms of pulp by 26.9%, in the deposition of food protein by 13.6%. The conversion rate of protein into food protein in the control group was 12.0%, and in the experimental group the indicator was 21.3%. The yield of dietary protein in the control group was 8.08 g, which is 33.6% less than in the experimental group. Thus, the calculation of bioconversion showed that the animals of the experimental groups, which additionally consumed Suntarsky zeolite, had a higher ability to transform nutrients and feed energy into meat products.

scholarly journals Technological methods of increasing the meat productivity of sheep in late lambing periods

2021 ◽  
Vol 209 (06) ◽  
pp. 61-70
Author(s):  
Larisa Pashkova
Keyword(s):  
Research Work ◽  
Live Weight ◽  
Control Group ◽  
Experimental Population ◽  
Technological Method ◽  
Housing Systems ◽  
The Difference ◽  
Meat Productivity ◽  
Group Chemical ◽  
Experimental Group

Abstract. The purpose of the research was to develop a method for increasing the meat productivity of sheep under various housing systems. Methods. All studies were conducted according to generally accepted methods. The experimental population of rams of the control and experimental groups was kept until the age of 3 months together with ewes on the pasture (suckling period) with further weaning at the age of 3 months. Further, the rams were divided according to the technologies of keeping: the control group – pasture (graziery), and the experimental group – indoor maintenance (fattening) up to 4 months of age, followed by control slaughter. Monthly weighing of the experimental young rams livestock was carried out. Results. The research work showed that the use of this technological method significantly contributed in increasing average gain and live weight, respectively, by 6.6 % (20 g) and 5.7 % (2.3 kg) and as a result, slaughter weight – by 9.2 % (1.6 kg) in young rams from the experimental group in comparison with analogues of the control group. Chemical, amino acid and microstructural analyses of samples of the longissimus of the livestock showed that the specimens of the young rams of the experimental group had the best food and market advantages. The efficiency of using this technological method is also confirmed by the calculated economic indicators – the difference in the level of profitability was 7.9 % in favor of the rams of the experimental group. The scientific novelty of the research work is a detailed study of the indicators of meat productivity under the influence of this technological method with the justification of its application and the introduction of both scientific and practical contributions to the development of sheep farming.

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