Beef productivity of steers when feeding protein-vitamin-mineral additive and protein-vitamin-mineral concentrate

2021 ◽  
pp. 44-52
Author(s):  
G. E. Uskov ◽  
N. M. Kostomakhin ◽  
N. I. Kulmakova
Keyword(s):  
Live Weight ◽  
Control Group ◽  
Bull Calves ◽  
Production Experiment ◽  
Mineral Additive ◽  
The Difference ◽  
Meat Productivity ◽  
Experimental Group ◽  
Total Gain ◽  
Preweaning Period

The purpose of the work was to study the influence of protein-vitamin-mineral additive and protein-vitamin-mineral concentrate on the growth, development and meat productivity of steers. Studies have been carried out on the rearing of steers when using the protein-vitamin-mineral additive based on extruded soybean with bentonite in the preweaning period and the protein-vitamin-mineral concentrate (with urea concentrate) when fattening steers. During the first research and production experiment in the calves of the 1st experimental group 30 % and in the bovine calves of the 2nd experimental group 40 % milk replacer have been replaced with a protein-mineral-vitamin additive. At the beginning of the experiment the calves of all groups had almost the same live weight. Starting from the age of 1,5 months the growth of the animals of the experimental groups began to prevail over the control group. Thus, the bull calves of the 1st experimental group at 2 months of age were larger than the control ones by 5,1 %, by the end of the experiment their superiority was 7,6 % (P < 0,01). The total gain in live weight of the bull calves of the 2nd experimental group was 9,4 % higher (P < 0,001) than in the control group. During the second research and production experiment on the use of protein-vitamin-mineral concentrate the difference in feeding was that the steers of the experimental group consumed complete feed, which included protein-vitamin-mineral concentrate (with urea concentrate) and bentonite. The gain in live weight of calves for 5 months of experiment in the control group was 136,7 kg, and in the experimental group it was 11,4 % more. The expenditures of feed per 1 kg of gain in EFU were by 10,1 % lower in the experimental group compared to the control group. The level of profitability of beef production in the control group was 16,1 %, and in the experimental group it was 26,5 %, which was more by 10,4 abs.%.

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.

scholarly journals MEAT PRODUCTIVITY OF BROILER CHICKENS WHEN INCLUDING SUB-PRO PROBIOTIC IN THEIR DIET

2021 ◽  
Vol 212 ◽  
pp. 198-206
Author(s):  
D.V. Nikitchenko ◽  
◽  
V.E. Nikitchenko ◽  
D.V. Andrianova ◽  
◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Practical Importance ◽  
Live Weight ◽  
Pectoral Muscle ◽  
Relative Mass ◽  
Control Group ◽  
Negative Consequences ◽  
The Difference ◽  
Meat Productivity ◽  
Experimental Group

The possibility of including SUB-PRO probiotic instead of Maxus G feed antibiotic in the diet of broiler chickens of Ross 308 cross was studied to obtain products free of drugs for antimicrobial resistance usage. The dynamics of live weight and carcass weight of cockerels at 1-, 21-, 28-, 34-, 38- and 42-days old was determined. The males of the control group (group 1) reached live weight of 2619 ± 44.9, experimental - 2739 ± 46.2 or more by 4.38%, at P≤0.05 by 42 days of age, and those which received feed antibiotic ( group 3) - 2677 ± 45.1 (further, meat productivity of the latter was not studied, since they are not of practical importance). The mass of carcasses of the experimental group was equal to 1704 ± 23.1 g, which is 4.60% more than the control, at P≤0.05; the relative mass of muscle tissue increased with age by 10.78% in the experimental group in comparison with the 1-day -olds, in the control group - by 10.0%, whereas the mass of bones decreased by 16.75 and 16.59%, respectively (by the difference); the diameter of muscle fibers of superficial pectoral muscle of 42-day-old broilers of the experimental group increased with age by 6.94 times and amounted to 57.9 μm; in terms of microbiological parameters, carcass meat meets the requirements of the interstate standard GOST 31468—2012. At the age of 42 days, cockerels of the control group showed dystrophic changes in the superficial pectoral muscle in the form of an expansion of the endomysium diameter, with the accumulation of interfiber fluid (albuminous degeneration), while some cockerels of the experimental group have fibers with vacuoles and infiltration by immunocompetent cells (leukocytes, phagocytes). Adding SUB-PRO probiotic in the broilers’ diet instead of the feed antibiotic does not reduce productivity, but excludes the negative consequences of feed antibiotics.

FEATURES OF BIOCONVERSION AND THE EFFICIENCY OF FATTENING YOUNG CATTLE OF THE KALMYK BREED IN THE REPUBLIC OF SAKHA YAKUTIA

2020 ◽  
Vol 15 (7) ◽  
pp. 1025-1035
Author(s):  
I.I. Sleptsov ◽  
◽  
A.A. Martynov ◽  
Y.S. Vasilyev ◽  
S.K. Okhlopkov ◽  
...  
Keyword(s):  
Meat Products ◽  
Live Weight ◽  
Control Group ◽  
Food Protein ◽  
Bull Calves ◽  
Production Complex ◽  
Young Cattle ◽  
The Republic ◽  
Meat Productivity ◽  
Experimental Group

This paper presents the results of studying the conversion of feed into nutrients in the carcass of bulls during the fattening of young Kalmyk breed in the conditions of Yakutia. The studies were carried out on the basis of the Soloosun agricultural production complex, Megino-Kangalassky region. The experiment was organized on Kalmyk bull-calves fed from 15 to 18 months of age. There were formed 2 groups of 25 bulls analogs: the control and the experimental one. The animals of the control group were fed according to the ration adopted on the farm. The diet of the animals from the experimental group included 200 g of Hongurin zeolite and 45 g of Kempendyai salt per animal. The main ration of animals by structure consisted of meadow hay 46%, haylage – 22% and compound feed 32% or 12.57 EFU per day. At the beginning of the experiment, the live weight of the animals was almost identical. At the end of fattening, the bulls of the experimental group in live weight exceeded the animals of the control group by 10.9 kg. Consequently, the experienced bulls had higher bioconversion rates, which was reflected in an increase in the meat productivity of animals. The analysis showed that the control group of bulls was inferior to the experimental group in terms of pulp by 11 kg., In the deposition of food protein by 1.3 kg. The calculation of the data on the conversion of protein into food protein showed that in the control group this indicator is 5%, and in the experimental group it was 6.2%. The yield of dietary protein in the control group was 40.4 g, in the experimental group – 52.8 g. Thus, the calculation of bioconversion showed that the animals of the experimental groups, which additionally consumed Hongurin zeolite and Kempendyai salt, had a higher ability to transfer nutrients and feed energy into meat products. The indicators of economic efficiency per 100 heads of fattening bulls of the Kalmyk breed are: profitability – 122.53%, cost price 1132 thousand rubles, profit – 1,388 thousand rubles, profit – 1.23 rubles per 1 ruble costs. The efficiency of beef production at a specialized feedlot increases by 22.53%.

scholarly journals MEAT PRODUCTIVITY OF KALMYK BREED BREEDS AT DIFFERENT DURATION OF THE PRODUCTION CYCLE AND LEVEL OF CONCENTRATES IN THE DIET

2020 ◽  
Vol 55 (3) ◽  
pp. 90-94
Author(s):  
R.A. Ulimbasheva ◽  
Keyword(s):  
Total Duration ◽  
Live Weight ◽  
First Grade ◽  
Control Group ◽  
Production Cycle ◽  
Meat Content ◽  
Bull Calves ◽  
Significant Difference ◽  
Meat Productivity ◽  
Experimental Group

The article presents the results of bulls control slaughter, morphological and varietal composition of the pulp of carcasses, depending on the duration of the production cycle and the level of concentrates in the diet. In the gobies of the control group, the total duration of the production cycle was 18 months (546 days), with a specific gravity of concentrates in the rations of 40 % in the experimental group – 16 months (482 days) – 50 %. The suckling period of calves in the control group was 210 days, in the experimental group – 182 days, rearing – 186 and 165 days, respectively, intensive final fattening – 150 and 135 days. The differences obtained both in the pre-slaughter live weight and in the weight of the paired carcass were 1,9 and 3,4 kg, respectively, without a significant difference between the groups. The superiority of bulls of the experimental group over the control group was established according to the leading studied indicators of the morphological composition of carcasses, except the mass of bones, cartilage, and tendons. Differences in the mass of the pulp in favor of the calves of the experimental group were 5,1 kg, the coefficient of meat content was 0,21 units, the ratio of the edible part to the inedible part in the carcass was 0,26 units. All other things being equal, from the bulls of the experimental group, a higher mass of pulp of the highest grade was obtained by 4,9 kg or 2,2 %, of the first grade – by 6,4 kg or 1,8 %. The yield of secondgrade pulp was higher in the carcasses of gobies of the control group by an average of 6,2 kg or 4 %. Thus, both groups of bulls showed high slaughter weight and slaughter yield, with insignificant intergroup differences. However, due to the shorter duration of the production cycle of growing and fattening, it turned out to be preferable to use beef production technology from bull calves of the experimental group.

Meat productivity of sheep of Edilbaevskaya breed when using the probiotic Bacell

2020 ◽  
pp. 32-44
Author(s):  
O. A. Shutova ◽  
N. V. Konik
Keyword(s):  
Nutritional Value ◽  
Feed Additive ◽  
Control Group ◽  
Slaughter Weight ◽  
Age Related ◽  
Production Experiment ◽  
The Difference ◽  
Meat Productivity ◽  
Experimental Group ◽  
Related Increase

Lamb meat is quite valuable in terms of food and a popular type of meat. Therefore, increasing the volume of its production is becoming one of the most important problems, both in our country and abroad. Studies by many scientists have proved that the best is considered to be lamb at the age of lambs 6-8 months. The purpose of the researches was to study the possibility of increasing the meat productivity of young sheep of Edilbaevskaya breed and increasing the nutritional value of meat through the use of the probiotic drug Bacell. Scientific and production experiment in the study of meat productivity of Edilbaevskaya sheep breed using probiotic Bacell has been carried out in the APC “Vladimirovsky” in the Akhtubinsky district in the Astrakhan region. In order to evaluate the potential of meat productivity of young sheep in a commercial herd after lambing 3 groups of ewes with 2-week-old lambs have been formed: the control group of animals was reared using traditional technology adopted in the farm, the 1st experimental group was reared and fed intensively due to additional feeding of grain mixtures, the 2nd experimental group was reared similarly to the 1st experimental, but additionally received the probiotic drug Bacell. By the end of fattening (6 months) the difference in slaughter weight in favor of rams of the 2nd experimental group compared to the 1st experimental group was 2,3 % (P ≥ 0,95) and 4,1 % (P ≥ 0,99) compared to the control group. Also, there was an age-related increase in the slaughter yield, which was for the analyzed period in the rams of the 2nd experimental group by 1 abs.%, and in the 1st experimental group by 1,8 abs. %, in the control group by 2,6 abs. %. The profit has been received from the rams of the 2nd experimental group was at the age of 4 months – 3281,6 rubles, and it was higher than the profit from animals of the control and 1st experimental groups by 1093,2 and 828 rubles. At the age of 6 months this difference was 714,0 and 316,8 rubles. As a result of the conducted researches, the expediency of using probiotic Bacell as a feed additive in the rations of young sheep of Edilbaevskaya breed has been proved.

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.

Effectiveness of anti-stress drug use in the feeding of pigs

2020 ◽  
pp. 34-42
Author(s):  
S. I. Nikolaev ◽  
O. V. Korneeva ◽  
V. V. Shkalenko ◽  
A. K. Karapetyan ◽  
L. A. Syuliev
Keyword(s):  
Live Weight ◽  
Control Group ◽  
Clinical Indicators ◽  
Slaughter Weight ◽  
Young Pigs ◽  
Volgograd Region ◽  
The Difference ◽  
Productive Traits ◽  
Experimental Group

The experiment has been carried out on a crossbred stock of young pigs in the period 2015–2017 under the conditions of JSC CHC “Krasnodonskoe” in the Ilovlinsky district in the Volgograd region. The purpose of the research was to study the effectiveness of the effect of the anti-stress drug Feed-Food Magic Antistress Mix in intensive pig rearing on the productive traits and quality of the products obtained, as well as the estimated economic indicators. In order to conduct a scientific and economic experiment at the age of 60 days young pigs were divided into 2 experimental groups (control and experimental) according to the principle of pair analogs. Each group contained 25 heads. The difference between the control and experimental groups was that the animals in the control group have received the main diet, and the experimental group has received the anti-stress drug Feed-Food Magic Antistress Mix in addition to the main diet. In the experimental group of pigs when this drug was administered in the age 180 days the live weight parameter was higher than in the control group by 1,55 kg. Clinical indicators of young pigs were within the physiological norm. The pre-slaughter weight in the experimental group has increased by 4,86 % compared to the control group. Due to the use of an anti-stress drug the slaughter weight of animals in the experimental group has increased by 6,69 %. In comparison with the control group the slaughter yield in the experimental group has increased by 1,18 %, in which this indicator was at the level of 67,62 %. The morphological composition of carcasses in animals of the experimental group was also improved. Meat yield has increased by 0,95 %. The yield of fat and bones has decreased by 0,59 and 0,36 %. The weight of internal organs was also superior in the experimental group of pigs. Due to the use of the anti-stress drug the level of profitability in the experimental group of animals has increased by 11,69 %.

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 %.

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 Productive traits of sheep of different genotypes

2019 ◽  
pp. 55-63
Author(s):  
V. Likhach ◽  
H. Kalinichenko
Keyword(s):  
Key Words ◽  
Live Weight ◽  
Study Groups ◽  
Fat Content ◽  
Daily Growth ◽  
Calorie Content ◽  
The Difference ◽  
Productive Traits ◽  
Meat Productivity ◽  
Experimental Group

The effect of industrial crossbreeding on the productive qualities of purebred Tsigai and Romanov sheep breeds was investigated. The following indicators were studied: the survival of the young for the period from birth to their weaning; dynamics of live weight of sheep and goats in the corresponding age periods (at birth, at 2-, 4-, 6,5-month age); meat productivity; wool productivity and sheepskin quality. The lambs and suckers were found to have live weight at birth of 3.9 and 4.2 kg respectively, which is 8.3 and 7.6 % higher than in purebred lambs. The difference in live weight of local and purebred lambs is statistically significant (P>0,999).The average daily growth for the whole period in the local sheep was 192 g, in the fossa 171 g, which is 4.3 and 4.9 % respectively more than in purebred peers. It is proved that the local young is characterized by better viability: the preservation of lambs to beating was 132.2 % against 115.3 % in purebreds. It was studied that the mass of chilled carcass in purebred lambs was 14.14 kg, and in domestic 14.3% more (P>0,999). It was investigated that animals in the experimental group had an average of 12.49 kg of flesh in the carcass, which is 77.3 % by weight of the carcass. In purebred lambs these figures are respectively 10.52 kg or 74.4 %. The difference in the pulp mass between the carcasses of the study groups was 1.97 kg or 18.7% (P>0.999). The fat content of the mixture was superior to pure-bred animals, resulting in a higher calorie content of 8.34 %. Proven lambs during fattening were shown to have a greater increase in live weight compared to purebred by 13.6%. At the same time, they consumed less feed units by 4.7 %. In terms of the original dirty wool, the highest indices were in the local brightnesses. Along with this, they also outperformed purebred animals by 2.48 kg, or 10.7%. It should be noted that in Romanov sheep, as a rule, fluff is exaggerated. This trend is preserved in the received mixes. The difference in the length of the down and the bones was 32.2 % (P>0,999). It is noted that the area of sheep sheep of the experimental group was more control by 7.4 % (P>0.95) and amounted to 84.0 dm2. The same pattern was observed in the area of exposed sheepskin. Key words: wool, lamb, sheepskin, live weight, viability, lambs, Romanov breed, Tsigai breed.

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