Cattle Fattening Research Articles

Fermentation quality of herbal tea residue and its application in fattening cattle under heat stress

BackgroundHerbal tea residue (HTR) is generally considered to be the waste of herbal tea beverage production while it still retains rich nutrients and active substances. The main aim of the present study was to investigate the effect of fermentation technology on improving the quality of HTRs, and focus on the fermented HTR-induced alleviation of summer heat stress in fattening cattle.ResultsIn this study, the waste HTR was fermented and then fed to a total of 45 fattening cattle that were divided into 3 groups (fermented HTR replaced 0, 15, 30% of the forage component of the diet), and the feeding experiment was lasted for 40 days. The physiological indexes, growth performance and fecal microbiota of fattening cattle were evaluated and results showed that fermented HTR could effectively reduce the respiratory rate and rectal temperature of fattening cattle under heat stress, increase the daily feed intake and daily gain, and improve the antioxidant content and blood immune index. In addition, we studied the fecal microbiota composition of 6 fattening cattle in control and 30% HTR substitution groups and found fermented HTR significantly changed the composition of fecal microbiota and increased microbial diversity, and correlation analysis suggested that the bacteria were closely related to fecal SCFA levels of fattening cattle under heat stress.ConclusionsIn this study, fermented HTR replaced 30% of the forage component of the diet that can change the intestine microorganisms, maintain health and alleviate the heat stress of fattening cattle.

PENENTUAN HARGA POKOK PENJUALAN USAHA PENGGEMUKAN SAPI POTONG MITRA DAN NON-MITRA DI DESA ASTOMULYO KECAMATAN PUNGGUR KABUPATEN LAMPUNG TENGAH

This research aims to find out production main cost, selling main cost, and the differences of production main cost and selling main cost between partner and non-partner cattle fattening business. Furthermore, this research uses cencus method which is conducted on cattle fattening in Astomulyo Village, Punggur Subdistrict, Central Lampung Regency. The location are chosen purposively as the consideration that the Punggur Sub-district, Central Lampung Regency has the largest cattle population in Lampung Province. Data in this research are analyzed using production main cost, selling main cost and independent sample test. The result shows that: the production main cost of cattle fattening partner and non-partner is Rp39,119.17/kg and Rp40,552.24/kg, respectively. Then, the selling main cost of cattle fattening partner and non-partner is Rp39,763.90/kg and Rp40,736.12/kg, respectively. Finally, there is a significant difference in the production main cost and the selling main cost between partner and non-partner cattle fattening business.Key words: cattle fattening, production main cost, selling main cost

Inclusive approach to calculating the real cost price and estimating the actual efficiency of cattle breeding

Information of the real cost price of milk and cattle meat production directly affects the accuracy and timeliness of management decisions in agricultural organizations. This led to the main objective of this study - with the help of an inclusive approach of calculating costs, to display the actual situation with costs and efficiency in cattle breeding, to develop a methodology for applying this approach in practice. The second objective of this longitudinal study is to look at the dynamics of the evolution of costs and prices for milk and cattle meat, since their change is closely related to understanding the past and present problems faced by agricultural producers. The paper describes the method developed by the author to distribution of costs in cattle breeding, the scale for determining the residual value of animal has been presented, depending on the period of its useful use. The method is based on a more accurate distribution of the company’s expenses by types of products obtained and complements the current cost price calculation methodology. Approbation of the developed inclusive approach to calculating costs in cattle breeding made it possible to assess the actual situation in the industry: cattle fattening is not that unprofitable (calculations have shown that fattening is effective in one third of the thousand surveyed agricultural organizations), and milk production is not as efficient as it is commonly believed (only a quarter of enterprises receive actual profits from milk sale).

Influence of complex feed additives on the meat productivity of young cattle in the conditions of Yakutia

The paper presents the results of fattening young cattle in the conditions of Yakutia with the use of complex feed additives from local natural raw materials in their diets. One of the ways to increase the meat productivity of livestock is to optimize feeding by inserting complex feed additives into their diets. Therefore, studies were conducted to determine the effectiveness of complex feed additives in the fattening of young cattle in the conditions of Yakutia. At the beginning of the experiment, the live weight of the animals in the groups did not differ much, but starting from the age of 12 months, the superiority of the animals from the experimental groups is noted. In the period of 12-15 months of age, the animals from the experimental groups exceeded the growth rate of the control group by 6.70% and 4.76%. In the period of 15-18 months old, the animals of the control group were inferior to the experimental groups by 28.31% and 16.54%. On average, the animals of the experimental groups grew more intensively in comparison with the control group by 12.73% and 8.66 %. Analysis of animal slaughter data showed that the experimental groups were superior to the control group in a number of indicators, such as the mass of the steam carcass by 8.04% and 4.43 %, the mass of visceral fat by 18.59% and 7.39%. The organoleptic evaluation of meat products also confirmed the superiority of the experimental groups over the control group. Thus, the use of complex feed additives in the feeding of young cattle on fattening showed its effectiveness.

Production of ingredients for cut cattle diet: a case study in farm angico, municipality of Corumbá - Mato Grosso do Sul

Nutrition has a fundamental role in the production of beef cattle, directly interfering in the costs, productivity and profitability of the activity. In this sense, the objective of the present study was to evaluate the challenges, opportunities and advantages of the production of the entire cattle fattening diet on the Angico farm, in the municipality of Corumbá - Mato Grosso do Sul. Applied research was carried out as a way of studying case. In the 2017/2018 harvest, the farm's own production yielded 116 bags/hectare of corn, 40 bags / hectare of soybeans, 42 tons / hectare of silage sorghum and 72.5 bags/hectare of grain sorghum. All these ingredients were used in the feed of the feedlot animals. It was concluded that at the Angico farm, with the use of proper planting and management techniques, it was possible to overcome production barriers (adverse weather, attack by pests, diseases and wild animals), thus improving the efficiency of the enterprise. In addition, it was possible to recover degraded pasture areas and increase the farm's food independence by reducing the purchase of food from third parties and reducing costs per arroba produced with the animals' own food production.

Multi-objective optimization of integrated crop-livestock system for biofuels production: A life-cycle approach

A method aiming the optimization of biofuels production from integrated crop-livestock system is presented, for a farm in operation with multiple agropastoral activities. For this purpose, multi-objective optimization is applied with support of a life-cycle assessment framework. The validity test of proposed methods adopts as object of study a plausible farm in the Brazilian Midwest, with soybean and maize crop rotation along with cattle fattening in pasture and feedlots, which gives origin to various biofuels chains: biodiesel, bioethanol and biogas. Decisions are based on two life-cycle performance metrics: greenhouse gas emissions and energy balance. Impacts on biofuel life-cycles are apportioned according to the market value of co-products. Strong influence of allocation factors on performance metrics is shown. Soybean biodiesel has greater energy potential than bioethanol and biogas, while generating the lowest greenhouse gas emissions by kg of biofuel. However, high population density of animal fattening in feedlots makes this activity have a greater energy balance by footprint than agriculture, as long as previous phases of animal growth do not occur in the farm. Multi-objective optimization shows that in general the pasture share should be minimized, so the decision relies on sizing the feedlot and agricultural areas. If equal weights are applied to objective-functions, the resulting farm distribution is 88.58% agriculture, 10% pasture, and 1.42% feedlot. The present model can be used to evaluate other systems and further metrics can be applied, allowing land distribution among different agropastoral activities, helping to guide private and public decision-making in the agro-energy sector.

Penggemukan sapi menggunakan pakan tanpa hijauan (complete feed) di era pandemi covid-19 (Fattening of cow cattle using green-free feed (complete feed) in the covid-19 pandemic era)

Problems in the COVID-19 pandemic era for cows’ cattle farmers were limited skills of farmers in processing of feed without forage in order to reduce production costs and anticipate prolonged droughts. The government's steps to overcome these problems are by providing business capital assistance, deferring loan payments, and assisting cows cattle farmers. The Regional Superior Product Development Program (RSPD) aims to determine the increase in body weight of various types of cattle using feed without forage and growth promoters in the COVID-19 pandemic era of SMEs of cows cattle fattening. Data was collected by interview/questionnaire methods and making feed without forage, growth promoter, and fermentor. The feed from RSPD was applied to five types of cows’ cattle (local cattle, ongole crossbreeds, madura cattle, limousin crossbreeds and Simmental crossbreeds). This activity was carried out from February until June 2021. The results showed that farmer’s skill in making feed without forage, growth promoters, and fermenters has been improved and also type of cows’ cattle with good weight gain has been determined. In conclusion, the production of feed without forage, growth promoters, and fermentor in the COVID-19 pandemic era could be done by the cattle farmers independently. Limousin and Simmental crossbreeds had good weight gain compared to local cattle, ongole crossbreeds and madura cattle.

Safety and efficacy of a feed additive consisting of Saccharomyces cerevisiaeMUCL 39885 (Biosprint®) for all pigs (other than sows and weaned piglets) and other minor porcine species (Prosol S.p.A.).

The additive Biosprint® contains viable cells of Saccharomyces cerevisiae MUCL 39885 and is authorised as a feed additive in sows, dairy cows, horses, piglets (weaned), cattle for fattening, minor ruminants for fattening and minor ruminants for dairy products. The applicant has requested to extend the use of the additive to all pigs (other than sows and weaned piglets) and other minor porcine species at a minimum inclusion level of 3 × 109 CFU/kg feed. S. cerevisiae is considered by EFSA to have qualified presumption of safety (QPS) status and consequently is considered safe for the target species, the consumers and the environment. The additive is considered as a potential skin and eye irritant and a skin and respiratory sensitiser. In previous evaluations, the FEEDAP Panel concluded that the additive is efficacious in sows and weaned piglets. In the current application, these conclusions are extrapolated to all pigs (other than sows and weaned piglets) and to other minor porcine species.

Safety and efficacy of a feed additive consisting of Saccharomyces cerevisiaeMUCL 39885 (Biosprint®) for cats and dogs (Prosol S.p.A.).

The additive Biosprint® contains viable cells of Saccharomyces cerevisiae MUCL 39885 and is authorised as a feed additive in sows, dairy cows, horses, piglets (weaned), cattle for fattening, minor ruminants for fattening and minor ruminants for dairy products. The applicant has requested to extend the use of the additive to cats and dogs at a minimum inclusion level of 7 × 1010 CFU/kg of complete feed. S. cerevisiae is considered by EFSA to have qualified presumption of safety status and consequently is considered safe for the target species. The additive is considered as a potential skin and eye irritant and a skin and respiratory sensitiser. Based on the results on efficacy studies provided, the FEEDAP Panel concludes that Biosprint® is efficacious when used in feeds for dogs. However, the FEEDAP Panel considered that the biological relevance of the magnitude of the effect detected is questionable. Based on the trial available, the FEEDAP Panel was unable to conclude on the efficacy of the additive when administered to cats.

Effect of integrated technology for fattening beef cattle in the livestock zone of North Sulawesi

This on-farm study aims to increase beef cattle productivity by utilizing integrated technology packages for local cattle fattening with a target of at least 800g/head daily gain. This study was carried out in the Minahasa Selatan district from August to October 2018. The integrated technology package for the fattening business pattern included: (1) complete feed, (2) intensive maintenance in multi-purpose cages, and (3) eradication of complete parasites. A complete feed is formulated in a balanced feed consisting of ammoniated rice straw and concentrate locally. The amount of dry matter concentrate was given per head is 1.5% of body weight (50% total consumption), while the ammoniated straw was ad libitum. For multipurpose cages, the upper part is equipped with a multipurpose tower as a barn while simultaneously serving straw, ad libitum, and continuous. Complete eradication of parasites using broad-spectrum anti-parasites to eradicate endoparasites that attack digestive tissues and other internal organs and ectoparasites to control the skin worms and eyeworms, cattle grubs, mange mites, sucking lice, sand tampans, and ticks. This study used fifteen local PO bulls fattened with an initial body weight of an average of 278.4 kg (± 54.34) with an observation period of 12 weeks. The observations showed that the average daily gain was 1,158 g/head, feed consumption 8,358 kg DM/head/day, and feed conversion ratio of 7.56. In contrast, the results of the business feasibility analysis showed a BCR coefficient of 1.69. The results of statistical analysis showed that the average weight gain increased significantly (p <0.01) after utilizing integrated fattening technology (308.8vs278.4 kg). It was concluded that the use of integrated technology for cattle fattening in beef cattle could increase productivity significantly and economically feasible.

Thymus and meat physicochemical measurements to discriminate calves treated with anabolic and therapeutic doses of dexamethasone

To preserve the Europe consumers' health, the use of glucocorticoids as growth promoters is prohibited in cattle fattening. In 2008, the Italian Ministry of Health associated to the official control a national monitoring plan based on the histological thymus analysis to identify animals illegally treated with corticosteroids. However, since corticosteroids are authorized and widely used for therapeutic purposes, it is necessary to verify whether the thymus histological test and some physicochemical traits in meat are able to discriminate doped calves from dexamethasone therapeutic treated ones. The aims of this study were (i) to establish whether the therapeutic and illicit corticosteroid treatments of calves could be differentiated through histological evaluation of thymus and by physicochemical meat traits; (ii) to identify a restricted number of physicochemical traits that could differentiate dexamethasone treated from untreated calves. Three groups of 15 calves each were included in this study: group dexamethasone therapeutic treatment treated with dexamethasone 21-phosphate disodium salt at a therapeutic dose (2 mg/kg of live weight for three consecutive days); group dexamethasone anabolic treatment orally treated with dexamethasone 21-phosphate disodium salt according to a presumed anabolic protocol (0.4 mg/day per animal for 20 days); group placebo control treated with a placebo served as control. Results demonstrated that groups could be easily discriminated by thymus microscopy as well as by two meat markers, namely, cooking loss and shear firmness or Warner-Bratzler shear force. The combination of thymus microscopic features and meat physicochemical traits could be used as a practical, economic and accurate screening strategy to discriminate between meat from illegally and therapeutically treated calves. This new reliable and simple tool could contribute to identify animals treated with dexamethasone in those countries where glucocorticoids are illegally used as growth promoters. More in general, this system could be included in the framework of official controls, and applied to verify suppliers' reliability by the meat industry.

Safety and efficacy of a feed additive consisting of an essential oil from the fruits of Litsea cubeba (Lour.) Pers. (litsea berry oil) for use in all animal species (FEFANA asbl).

Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of an essential oil from the fruits of Litsea cubeba (Lour.) Pers. (litsea berry oil), when used as a sensory additive (flavouring) in feed and water for drinking for all animal species. The FEEDAP Panel concluded that litsea berry oil is safe up to the maximum proposed use level of 125 mg/kg complete feed for ornamental fish. For the other species, the calculated safe concentration in complete feed are 11 mg/kg for chicken for fattening, 16 mg/kg for laying hen, 14 mg/kg for turkey for fattening, 19 mg/kg for piglet, 23 mg/kg for pig for fattening, 28 mg/kg for lactating sow, 48 mg/kg for veal calf (milk replacer), 43 mg/kg for cattle for fattening, sheep, goat and horse, 28 mg/kg for dairy cow, 17 mg/kg for rabbit, 47 mg/kg for salmon, 50 mg/kg for dog and 8.5 mg/kg for cat. The FEEDAP Panel also concluded that the use of litsea berry oil at the maximum proposed use level in water for drinking of 1 mg/kg is safe for all animal species. Simultaneous use in feed and water for drinking may lead to the maximum safe dose being exceeded. No concerns for consumer safety were identified following the use of the additive up to the highest safe use level in feed for the target animals. The essential oil under assessment should be considered as irritant to skin and eyes, and as a skin and respiratory sensitiser. The use of the additive in animal feed under the proposed conditions was not expected to pose a risk for the environment. Litsea berry oil is recognised to flavour food. Since its function in feed would be essentially the same as that in food, no further demonstration of efficacy was considered necessary.

Safety and efficacy of a feed additive consisting of an essential oil from the leaves of Citrus × aurantium L. (petitgrain bigarade oil) for use in all animal species (FEFANA asbl).

Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of an essential oil from the leaves of Citrus x aurantium L. (petitgrain bigarade oil), when used as a sensory additive (flavouring) in feed and water for drinking for all animal species. The FEEDAP Panel concluded that the essential oil under assessment is safe up to the maximum proposed use level of 125 mg/kg complete feed for ornamental fish. For the other species, the calculated safe concentrations in complete feed are 10 mg/kg for chicken for fattening, 14 mg/kg for laying hen, 13 mg/kg for turkey for fattening, 17 mg/kg for piglet, 20 mg/kg for pig for fattening, 25 mg/kg for lactating sow, 43 mg/kg for veal calf (milk replacer), 38 mg/kg for cattle for fattening, sheep, goat and horse, 24 mg/kg for dairy cow, 15 mg/kg for rabbit, 42 mg/kg for salmon, 44 mg/kg for dog and 8 mg/kg for cat. The FEEDAP Panel considered that the use level in water for drinking is safe provided that the total daily intake of the additive does not exceed the daily amount that is considered safe when consumed via feed. Simultaneous use in feed and water for drinking may lead to the maximum safe dose being exceeded. No concerns for consumer safety were identified following the use of the additive up to the highest safe level in feed. The essential oil under assessment should be considered as irritant to skin, eyes and the respiratory tract, and as a skin sensitiser. The use of the additive in animal feed under the proposed conditions was not expected to pose a risk for the environment. Petitgrain bigarade oil was recognised to flavour food. Since its function in feed would be essentially the same as that in food, no further demonstration of efficacy was considered necessary.

The profit analysis of beef cattle farming in Tanah Laut District, South Borneo

The feasibility study of financial farming was needed to be analyzed by local farmers. This study was conducted purposively in Banua Tengah Village, Takisung Sub-District, Tanah Laut District, in July - September 2017. Respondents were selected by simple random sampling of 30 persons in the village sample. Data were collected in the form of primary data and secondary data Tabulation analysis was needed to analyze the data on farmer’s household characteristics and housing management characteristics, also farmer’s household income and expense data. Financial feasibility analysis for calculating the feasibility of beef cattle breeding business investment was determined using the feasibility indicators namely: NPV, B/C Ratio and IRR, while the indicators of the feasibility of cattle fattening: BEP, ROI, and R/C. The result showed that (1) The business of beef cattle breeding using 5 females aged 1 year old in the fourth year (until bore 1 calf/head) was quite feasible to be developed cause it resulted in Gross B/C Ratio value of 1.23 (B/C > 1), NPV value of 21,500,194 (positive), and IRR value of 14.61% by Discount Rate of 10 %. (2) Fattening beef cattle business using 5 cattles/farmer (3 months raising period) will resulted benefit for farmers when the BEP selling price was above IDR 39,152/kg of live weight, and the total BEP of beef cattle weight gain after 3 months fattening period above 1,700 kg or above 340 kg/head, with ROI value of 31.09% (each cost incurred about IDR 1 will get a profit of IDR. 0.3109), and R/C value = 1.31 ( quite feasible to be developed).

Assessing resource utilisation in beef cattle feedlot system in Adamawa State, Nigeria

Abstract. This study assessed resource utilisation in beef cattle fattening units in Adamawa State, Nigeria, with the intent of highlighting some crucial areas that may require policy intervention for improvement. Purposive, multistage and random sampling methods were employed in selection of 270 beef cattle fatteners in the area studied. Structured questionnaire and group discussion were used in sourcing for data. The latter were analysed through descriptive statistics and efficiency methods of Data Enveloping Analysis (DEA). Results indicated that Sokoto gudali (72.60%) and Rahaji (20.00%) were the major cattle breeds adopted for fattening. While a total of 70.70% of fatteners fed bulls for a period of 4-6 months and in the open without shade (77.80%), the use of combination of crop residues and conventional feeds was the most popular (74.81%) in feeding stock in the State. Further, the most important resources were initial cost of bulls and cost of feeds with N169,056.00 and N10,559.00 per bull, respectively. Resources were found to be efficiently utilised within the beef cattle feedlot farms with Constant Return to Scale (CRS), Non-Increasing Return to Scale (NIRTS), Variable Return to Scale (VRS), Scale Efficiency (SE) and Return to Scale RTS) models mean scores of 84.44%, 84.44%, 91.48%, 84.74%, and 100%, respectively. Conclusively, it could be stated that indigenous breeds of Sokoto gudali and Rahaji were the main bulls used for fattening in the State, and a mixture of crop residues and conventional feeds was the popular plane of feeding stock, with most farms utilising resources efficiently. Stemming from the findings, soft credit facilities to accord fatteners afford initial off-setting cost of bulls and frequent extension services to same, for modernisation of beef cattle feedlot system are highly recommended.

A study of the effect of a hot environment on productivity and the strategies to manage heat stress in Japanese Black fattening cattle

A study of the effect of a hot environment on productivity and the strategies to manage heat stress in Japanese Black fattening cattle

Changes in Blood Fatty Acid Concentrate Ions in Japanese Black Female Fattening Cattle

近年，日本の黒毛和牛農場は大規模化，高密度化が進み，生後早期から濃厚飼料多給による霜降り牛肉の生産が行われている．その結果，呼吸器疾患，関節炎，中耳炎などの慢性炎症性疾患が増加し，特殊な飼養による免疫力低下が推測される．本研究では，個体の免疫に重要な役割を持つ3大栄養素の一つである脂質に注目し，生後9～30カ月の黒毛和種肥育雌牛120頭を供試牛として，血中脂肪酸の推移を調査した．ω6系脂肪酸のリノール酸（LA）は肥育中前期で有意に増加し，仕上げ期まで高値を維持したが，アラキドン酸（AA）はほとんど変化がなく推移した．ω3系脂肪酸のエイコサペンタエン酸（EPA）は肥育中前期以降有意な減少を示し，ω6/ω3比の上昇が明らかになった．

Perhitungan Laba Rugi Model Bagi Hasil Usaha Peternakan Sapi pada Bumdes Banna Lhokseumawe

This community service activity was carried out at Bumdes (village community owned company) of Banna in Paya Punteut Village, Muara Dua District - Lhokseumawe, Aceh. This village-owned company is known to be engaged in cattle fattening. The motivation and enthusiasm to develop from the management of BUMDes Banna is very high, but the managerial ability of Bumdes management is still very limited. Bumdes, who were expected to grow forward, turned out to be suffering from many problems. One of the problems is when the profit sharing is not proportional. The operating costs incurred are not appropriate. Livestock care work is given to a group of people on the condition that Bumdes bears all operational costs. Profit sharing is based on the revenue sharing system where Bumdes gets a 40% portion of the sales of cows. The service method used in the dedication of the application of science and technology is a participatory method, namely by making continuous observations, speeches, and direct demonstration (demonstration) methods. This activity is capacity building assistance for six months. The focus is on strengthening productivity and management such as compiling financial reports, business visibility, and strengthening archives management. The results of community service activities indicate that the profit sharing system has not fully met the standard accounting standard format, especially in the preparation of the income statement. In order for Bumdes to no longer feel that it is making a profit, but in fact it is a loss, the formulation of the AD-ART (regulation of company village) needs to be revised with the approval of Bumdes stakeholders through village meetings. Furthermore, the preparation of financial statements must be based on applicable accounting standards.

Factors that influence market participation among traditional beef cattle farmers in the Meatu District of Simiyu Region, Tanzania.

Market participation among beef cattle farmers is key to ensuring better income, food security, and sustainable beef supply. Farmers in the traditional beef cattle sector, nevertheless, are well known for their low market participation. This study, thus, sought to examine factors that influenced market participation among beef cattle farmers in the Meatu district of Simiyu region, Tanzania. The study randomly selected a sample size of 393 farmers. The cross-sectional data collected through interviews and questionnaires were analyzed using descriptive statistics and ordinary least squares (OLS) regression models. The descriptive analyses showed that the average age of the interviewees was 53.73 years with a family size of 13.11. On average, the respondents had about 24.14 years of farming experience. Most of the respondents (67.9%) had primary education. Among the respondents, about 61.3%, 4.6%, and 32.6% had access to market information, farm credits, and veterinary services, respectively. The average cattle herd size was 53.46 heads. About 90.1% of farmers had participated in the markets by selling an average of 5 heads each, per year. This study has revealed low volume of sales, low education levels, and poor access to credits and veterinary services as the major factors that limit market participation. Furthermore, econometric results show that the key factors that significantly influenced farmers to increase the volume of beef cattle sales in the market at P < 0.05 included price, herd size, off-farm income, distance to market, age of the farmer, and cattle fattening. Moreover, membership in cooperatives, access to market information, and farming experience also had significant influence at P < 0.05. This study recommends establishment of strategic cooperatives to function not only as a communication channel for farm credits, price, market information, and training on commercial farming, but also to assist farmers in selection of profitable markets.

КОРМОВЫЕ ДОБАВКИ С СОРБЦИОННЫМИ И АНТИОКСИДАНТНЫМИ СВОЙСТВАМИ ДЛЯ КОРРЕКЦИИ ИММУННОГО СТАТУСА И УВЕЛИЧЕНИЯ ПРОДУКТИВНОСТИ КРУПНОГО РОГАТОГО СКОТА ПРИ ОБЪЁМИСТОМ ТИПЕ КОРМЛЕНИЯ

The article presents results of studies on correction of silage and haylage rations of young fattening cattle and lactating cows by using sorbing, sorption- probiotic and antioxidant vitamin and mineral supplements. The application of such feed additives as Koretron and Biokoretron-forte in hay rations of fattening cattle in the amount of 1.1 % of its dry matter stimulates protein-synthesizing liver function, which is shown by concentration increase of total protein in blood serum of young animals in the experimental groups compared to the control (by 3, 97 and 5.01 %) albumin (6.21 and 9.34 %) and alpha globulins (9.26 and 16.74 %), concentration increase of immunoglobulins of A, M, G classes, all these parametres are reflected in an increase of average daily gains by 11.75 and 14.73 %. Adding the antioxidant vitamin and mineral supplement Lipovitam-beta to silage rations of cows at a dose of 4 g every 5 days increases their productivity by 7.41 %, which is also confirmed by an increase of serum protein concentration in their blood (by 2.04 %), besides, there is a significant increase of globulins by 3.52 % in the fractional spectrum, the fraction increase of gamma globulins (by 4.69 %), which carry the main load for formation of antibodies, is especially pronounced. The application of Lipovitam - beta has an immunostimulating effect during the period of late pregnancy of cows (7-8 months of pregnancy), which is confirmed by a significant increase of immunoglobulins of A, M and G classes in blood serum, by 8.38 %; 9.37 % and 13.01 %, respectively. Cow reproduction rates are improved