Profitability Of Meat Production Research Articles

Use of feed additive based on milk whey and medicinal herbs in feeding of geese

The purpose of the research was to determine the appropriate dose of the biologically active additive AA-50 based on whey and medicinal herbs when added to the main diet of broiler goslings. An experiment was carried out to determine the effectiveness of rearing broiler goslings using the biologically active additive AA-50. In order to determine the eff ectiveness of the AA-50 additive, data on live weight, growth rate, livestock livability, feed conversion and profi tability of meat production of Lindovsky breed goslings were studied. The results of the slaughter of geese and the results of anatomical cutting of the carcass were analyzed, and the protein picture of the blood of geese was studied. It was found that of the three experimentally tested doses of the AA-50 additive to the main diet (30,0 ml, 50,0 and 100,0 ml per 1 kg of compound feed); the most effective dose was 50,0 ml/kg of compound feed. When using the indicated dose, the live weight of 60-day-old goslings was higher by 200 g (p ≤ 0,05), the average daily gain by 3,4 g, livability by 3 abs.%, productivity index by 26 units or by 13,5 %, the level of profi tability was 8,0 abs.% higher compared to the 1st control group of goslings that did not receive the biologically active additive. The slaughter yield of the gutted carcass was the highest in the 3rd experimental group and amounted to 65,72 %, which was higher than the control by 1,21 abs.%, the meat quality index by 0,21 units, the ratio of pectoral muscles to all others by 1,4 %. As a result of the research, the most effective dosage of the feed additive AA-50 turned out to be 50,0 ml/kg of compound feed during the entire technological cycle of rearing meat geese. The positive eff ect of the AA-50 additive on the protein profi le of the blood of goslings has been established.

Estimation of cattle weight gain under the influence of meteorological and nutritional variables by applying a multiple linear regression model in Sabanalarga, Colombia

The present investigation arose from the current problem in the entire territory of the Department of Atlántico in the Republic of Colombia, in which the livestock sector currently lacks a reliable modernization that contributes to the planning and profitability of meat production, translated into weight gain. The main focus of the study gravitated around the ignorance of the real effect exerted by meteorological and nutritional factors on the weight gain of cattle. As a possible solution, it was proposed to carry out a statistical analysis by means of a multiple linear regression model where cattle weight gain was the dependent variable to study under the influence of the following independent variables: accumulated precipitation for two weeks (mm), average daily precipitation for two weeks (mm), average daily forage height consumed for two weeks (cm), percentage daily average of forage consumed during two weeks (%), average protein percentage of forage consumed during two weeks (%), the average maximum temperature recorded during two weeks (°C), the average minimum temperature recorded during two weeks (°C), average daily temperature variation recorded for two weeks (°C) and average relative humidity recorded for two weeks (%). All independent data values were collected in the field. Once the analysis was carried out, it was concluded that there was statistical evidence to affirm that only the independent variables "accumulated precipitation", "average precipitation", "average minimum temperature" and "relative humidity" significantly influenced the changes observed in profit of cattle weight, being formulated a multiple linear regression model that contained only the mentioned variables, the rest were discarded. On the other hand, for the constructed linear regression model, the coefficient of determination R2 = 89.3691% was obtained, that is, for the significance level α = 0.05 (95% confidence level), this determined that the model of Multiple linear regression (A) explained the behavior of the average monthly cattle weight gain by 89.3691%. It was concluded, therefore, that the present work gives veracity to the determination of previous investigations where it is also concluded that the meteorological variables directly affect the changes associated with the weight of cattle for meat production. Key words: cattle, linear regression, livestock, meteorological, nutritional, statistics, variables, weight gain

The effectiveness of feeding broiler chickens using drugs based on oligosaccharides

Russian and foreign scientists and farmers have found that the use of feed antibiotics for prevention purposes is unjustifi ed and can have a negative impact on the immunity of a man who uses poultry products containing an excessive amount of such drugs in his diet. Of great scientific and practical importance is the development and justifi cation of the use of new approaches in poultry the physiological state, productivity, and quality of meat products of broiler chickens when replacing feed antibiotics in their diet with new, alternative drugs Safmannan and Immunosan containing oligosaccharides of dried cell walls of inactivated yeast Saccharomyces Cerevisiae. The purpose of the research was to evaluate the feeding of broiler chickens using drugs based on oligosaccharides. The inclusion of Safmannan and Immunosan drugs in the compound feed instead of feed antibiotics allowed to increase: the digestibility of dry matter in the body of broiler chickens by 4,3 and 5,1 abs.%, the digestibility of raw fat by 9,5 and 13,2 abs.%, the amount of metabolic energy by 3,1 and 3,8 %, the use of nitrogen – by 8,4 and 3,2 abs.%, the use of calcium by 20,0 and 23,6 abs.%, respectively, compared with the control. The use of Safmannan and Immunosan drugs was accompanied by the increase in live weight in broiler cocks by 1,3 and 0,06 % by the end of fattening, in broiler chickens by 3,4 (p < 0,05) and 0,1 %; the increase in the slaughter yield of the gutted carcass by 2,3 and 2,0 abs.%, the number of muscles in the carcass by 8,1 and 10,2 abs.%, respectively. The level of profi tability of meat production of broiler chickens in the group where Safmannan was fed instead of feed antibiotics exceeded the base variant by 6,8 abs.%, and in the group of broiler chickens fed Immunosan, it was inferior to the base value by 3,4 abs.%, while corresponding to the level of profi tability at the poultry farm (39–40 %).

Granulated mineral complexes in the rearing of young rams

The purpose of the work was to increase the meat productivity of sheep when introducing granulated mineral complexes produced by the Azot Branch of URALCHEM JSC into their ration. A scientific and economic experiment was carried out on the herd of sheep of Volgograd meat and wool breed. Four groups of young rams with 10 heads in each were formed. The experiment was carrier out for 4 months – from 4 to 8 months of animal age. The animals of the control group were housed on a general farm ration. Their analogues from the experimental groups were fed a mineral compensating additive instead of the mineral part of the ration: the 1st experimental group recipe No. 1, the 2nd experimental group recipe No. 2 and the 3rd experimental group recipe No. 3. It was revealed during the physiological experiment that the organism of animals from the experimental groups compare with the control group absorbed nitrogen obtained with compound feed somewhat better. The highest nitrogen utilization rate was found in sheep that consumed the mineral granulated balancing additive made according to recipe No. 1. It was found that the sheep of the experimental groups, whose rations included the mineral granulated balancing additive had a higher growth rate. The best results were obtained when using the mineral complex made according to recipe No. 1. The profi t from the sale of mutton produced during the experimental period in the 1st, 2nd and 3rd experimental groups exceeded that in the control group by 224,9; 114,5 and 73,8 rubles. The level of profi tability of meat production in the experimental groups was higher than that of the herdmates of the control group by 11,21, 6,41 and 4,10 abs.%, respectively. Thus, in order to increase the meat productivity of young rams we recommend using a diet using mineral granulated complexes. We consider the most optimal complex made according to recipe No. 1.

Productivity of quails when introduced in compound feed of beech flour

In many countries, quail breeding is organized on a large scale, using modern industrial forms of production. Due to quail farming, the range of dietary foodstuff s necessary for a person is expanding. When rearing and housing this species of poultry, its complete feeding is of particular importance, because health and productivity depend not only on the presence of protein, energy, fats in the compound feed, but also on the amount and ratio of minerals in it, which are a necessary component of any diet. The introduction of beech fl our containing lignocellulose, which relatively recently began to be used for animal feeding as a source of high-quality dietary fiber, can increase the availability of feed nutrients. The purpose of the research was to study the influence of compound feed with the introduction of 1 % beech fl our in different rearing periods on the metabolism and productivity of quails. The results of the influence of complete nutrient-balanced compound feed with beech fl our on zootechnical and economic indicators in the rearing of quailshave been presented in the article. It has been found that expenditures of feed per 1 kg of live weight gain of poultry of the experimental groups were lower by 3,10 % due to better absorption of nutrients. The live weight of quails in the control group at the age of 42 days was 348,25 g and was lower than in the experimental groups by 0,81 and 0,75 %. It has been established that the use of compound feed with 1 % beech fl our is of practical importance in connection with the increase in the productivity of quails and the level of profitability of meat production by 3,2 and 5,5 abs.%.

БУКОВАЯ МУКА В РАЦИОНЕ ПЕРЕПЕЛОВ

To increase the meat productivity of quails, increase production volumes and reduce the cost of poultry production, it is necessary to include non-traditional additives in the poultry diet that contribute to the normalization of metabolic processes and improve the digestibility of feed nutrients. The article presents the results of a study on the use of beech flour in feeding meat quails. Feeding experimental compound feeds to quails increased the digestibility and use of nutrients, the profitability of meat production by 3 and 4.5%, and reduced costs per 1 kg of growth by 2.07 and 3.79%.

Комплексная кормовая добавка для бройлерного откорма утят

Abstract. The purpose of the research is to develop an effective feed additive with an optimal content of raw protein in combination with flavoring additives for ducklings, which allows to increase zoo technical and economic indicators with broiler technology of fattening young animals. Research methods. A scientific and production experiment was conducted on three groups of analog ducklings from a daily age to 49 days old. The studied indicators are: the dynamics of live weight by fattening phases, absolute and average daily growth, the safety of young animals, feed conversion, slaughter indicators, the European fattening efficiency indicator, the profitability of meat production. Results. The use of compound feeds with an optimal level of protein content in combination with flavoring additives prepared on the basis of developed feed additives intended for fattening broiler ducklings in the fattening phases contributes to an increase in: live weight by 11.4 %, the safety of young animals by 3 %, feed consumption and conversion by 3.9 and 7.6 %, slaughter yield of 1.1 %, the European fattening efficiency indicator from 246 to 308 units and the profitability of meat production by 24.5 %. Scientific novelty. For the first time, a complex feed additive has been developed, which, according to the age periods of fattening, includes three varieties: “Prestart”, intended for intensive fattening of young animals from daily to 10 days of age inclusive, “Start” for ducklings from 11 to 21 days and “Finish” from 22 to 49 days. The rate of introduction of the additive is 30 % of the mass of mixed feed. The composition of the supplement includes high-protein feeds, premixes, amino acids and flavoring substances (monosodium glutamate, acetic and citric acids, a mixture of phytogenics: oregano, cinnamon, red pepper).

Sunflower kernels and seeds in the diet of broiler chickens

The study of the use of compound feed with shelled and unshelled sunflower seeds in the rearing of broiler chickens is of scientific and practical interest. The purpose of the research was to assess the influence of the inclusion of sunflower kernels and seeds in compound feed on the productivity of broiler chickens. In accordance with the set purpose and objectives of the research the experiment has been carried out on broiler chickens of the Arbor Acres cross from the daily age to the 35-day age under the conditions of the LLC “Morozovskaya Poultry Farm”. For the experiment, 5 groups of broiler chickens with 100 heads in each have been formed. The planting density, light and temperature conditions corresponded to the recommendations for growing broilers of this cross. The broilers of the control group have been received the main diet, and the poultry of the experimental groups have been received compound feed with kernels (5,0–7,5 %) and seeds (5,0–7,5 % + the enzyme drug Ronozyme VP 250 g/t) of sunflower. The results of studies on the inclusion of sunflower kernels and seeds in the diets of broiler chickens have been presented in the article. Data on zootechnical indicators of rearing, results of slaughter and anatomical cutting of carcasses, as well as economic indicators of meat production have been presented. The livability of broiler chickens both in the control and in the experimental groups was at a high level and did not depend on the inclusion of the tested ingredients in the compound feed. It has been found that the inclusion of both 5–7,5 % of sunflower kernels and 5–7,5 % of sunflower seeds with husk in the diet of broiler chickens in combination with the enzyme preparation Ronozyme (250 g/t) contributes to increasing the productivity of poultry, reducing the cost of compound feed, which allows increasing the level of profitability of meat production by 1,9–3,2 %.

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

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.%.

Efficacy of manganese pantothenate and lysinate chelates for prevention of perosis in broiler chickens

Perosis is a common metabolic disease of industrial birds, especially broiler chickens. It leads to a violation of the balance of biotic substances in the body of chickens, which is clinically manifested by the curvature of the limbs, reduced mobility, and, consequently, reduced profitability of meat production. Prevention of perosis is possible provided that chickens receive a sufficient amount of manganese in a biologically available form. Studies were conducted to determine the efficiency of use of manganese chelates (pantothenate and lysinate) for prevention of perosis in broiler chickens. Efficacy was confirmed by examining changes in the clinical state, indicators of protein and mineral metabolism, as well as meat productivity of birds. For the experiment, broiler chickens of the Cobb-500 cross were taken at the age of 14 days. The birds of the control group received a standard diet, and the chickens from two experimental groups additionally received manganese pantothenate and lysinate with water during the critical period for the development of perosis – 14–28 days old. After 14 days of administration of manganese pantothenate and lysinate, the weight of the experimental birds at the age of 28 days was greater by 133.6 g (+11.0%) and 142.2 g (+11.7%), respectively, in comparison with poultry of the control group. Additional provision of manganese pantothenate and lysinate to chickens of the experimental groups contributed to an increase in the blood serum total protein concentration by 11.0% and 12.8 %, albumin – by 10.1% and 8.2%, magnesium – by 8.1% and 9.0% and manganese – by 29.6% and 26.9%, respectively, compared with indicies of the control group birds. The use of manganese chelates in the form of pantothenate (0.2 mL/L of water) and a lysinate (0.5 mL/L) during the 14–28th days of broiler chickens’ rearing provides 100% prevention of perosis. This reduces the death of broiler chickens, increases body weight, and, as a result, significantly increases the profitability of meat production.

ЭФФЕКТИВНОСТЬ ВЫРАЩИВАНИЯ БРОЙЛЕРОВ В ЗАВИСИМОСТИ ОТ СХЕМ ФАЗОВОГО КОРМЛЕНИЯ И ИСПОЛЬЗОВАНИЯ СУПЕРПРЕСТАРТЕРНОГО РАЦИОНА

Differentiated broiler feeding consists of four main phases: pre-starter, starter, growth, and finishing. Further improvement of the feeding schemes of meat chickens aims at dividing the main phases into shorter periods that differ in the nutritional value and energy value or physical structure of compound feeds. The most important are the pre-starter (the first seven days of the chicken life) and the final (25 days and before slaughter) phases of broiler feeding. In the performed studies, the practicality and effectiveness of meat chicken feeding schemes with the division of the finishing period into three phases (experiment 1) and the use of the super-starter period in the pre-starter phase (experiment 2) are scientifically justified in two experiments. The object of the study was broilers of the cross “Cobb-500”. In experiment 1, two groups of oneday-old chickens were formed: a control group and an experimental group with 6-and 7-phase feeding, respectively. In group 1, the finishing period was divided into two phases, in group 2 – into 91 three phases. The results of growing broilers showed that the growth rate, the safety of livestock, and the yield of meat per unit area in group 2, respectively, were 0.7 g; 0.6% and 1.1 kg were higher. The comprehensive final indicators – the broiler productivity and meat production efficiency indices were 11 and 13 units or 3.0 and 11.7% higher in group 2, respectively, and the level of profitability of meat production was 0.5% higher in group 2 compared to group 1. In experiment 2, six groups of one-day-old chickens were formed. Groups 1k, 2k, and 3k are the control ones, while groups 4, 5 and 6 – experimental ones. Broilers 1k and 4 were separated from the parent herd of 29 weeks of age, groups 2k and 5 – from the bird of 32 weeks, and groups 3k and 6 – from the parents of 34 weeks of age. In the control groups, pre-starter feed was fed to chickens from the daily to 7-day-old age. In the experimental groups, broilers received super–starter feed in the first four days and pre-starter feed in 5–7 days. In the future, the chickens of all groups will be fed equally according to the 6-phase feeding scheme. The study results showed that broilers who received superprestarter in the first four days on average reached 2528 g of live weight at the pre-slaughter age (39 days), which is 66 g or 2.6% more in comparison with chickens of the control groups. According to the average weight of gutted carcasses, there was a significant superiority of the experimental groups. The broiler productivity and meat production efficiency indices in the experimental groups averaged 385 and 116 units, respectively, which is 16 and 20 units more than in the control groups. The level of profitability of meat production in groups 4, 5, and 6 was 1.3%.; 2.4 and 0.1% higher than in groups 1k, 2k, and 3k, respectively. The results obtained in the studies allow us to conclude that the use of a 7-phase scheme in the feeding of broilers with the division of the finishing period into three phases (25–30, 31–34, and 35–39 days) with the level of metabolic energy of 318, 322 and 325 kcal per 100 g of feed and raw protein 19.0, 18.5 and 18.2%, respectively, is appropriate. The use of superstarter in the first four days of the prestarter phase and prestarter in 5–7-day-old meat chickens increases the zootechnical and economic efficiency.

Super dose of phytase in compound feed for turkey poults

In the practice of feeding poultry enzyme drugs are widely used that contribute to the effective transformation of feed components into poultry products. Reducing the cost of compound feed for poultry due to the introduction of enzyme drugs is of great interest, both from a scientific and practical point of view. More than 2/3 of phosphorus in plant feeds is represented in the form of phytate and in this form the element is only partially absorbed in the poultry body. Accordingly to cover the need for phosphorus in plant diets include inorganic phosphates, animal feed and the enzyme phytase (breaks down phytate). This makes phosphorus the third most expensive feed component after energy and protein. The purpose of the researches was to study the effectiveness of using super dose commercial phytase in feeding of turkey poults. The results of research on the use of high doses of phytase in the diet of turkey poults of cross Hybrid Converter have been presented. It has been found that the use of compound feeds containing the super dose of phytase in the rearing of broiler turkey poults does not have a negative influence on the zootechnical indicators of poultry rearing, meat productivity, and increases the economic indicators of meat production. The results on base the experiment, economic indicators have been calculated. It has been found that the cost of 1 ton of compound feed consumed in the experimental group was less than in the control group by 166,28 rubles or 0,7 %. The use of high doses of phytase in the diet of turkey poults of the experimental group allowed to reduce the cost of growth of 1 kg of live weight by 4,7 % and increase the profitability of meat production.

Hulless barley in compound feed for quails

In recent years, the Russian poultry industry has been successfully developing because of the use of modern crosses, as well as technologies for poultry housing and feeding. The development of quail farming as an eff ective source of dietary and delicacy products is promising. One of the most important conditions for successful breeding of quails is the organization of complete feeding, which involves the use of high-quality protein and energy feed in the diets. It is very important to maximize the use of local raw materials. In this series, a special place is occupied by hulless barley, which is characterized by a reduced content of hard-to-digest fi ber, and therefore has the increased nutritional value for poultry. Therefore, it is of particular relevance to study the input of various varieties of hulless barley in the composition of compound feed for poultry. The purpose of the research was to study the infl uence of compound feed using hulless barley of Siberian selection on the meat productivity of quails. The results of the study on quails using compound feed with 10 % hulless barley have been presented in the article. It has been found that the expenditures of feed per 1 kg of live weight gain in the experimental group of quails have been higher by 3,6 % due to better assimilation of feed nutrients. The live weight of quails in the experimental group has been increased by 4,31 %, while the average daily feed intake has been increased by 0,62 %. Data from the balance experiment have shown that protein digestibility has increased by 1,81 % in the experimental group. It has been found that the use of compound feed with 10 % of hulless barley is of practical signifi cance in relation with the increase in the productivity of quails and the profi tability of meat production by 8,3 %.

Possible effects of functional feed additive as a growth promoter in turkeys and pigs

Effects of functional feed additives based on the fungus Fusarium.S and organic acids were studied. The research studied corporal parameters, the safety, growth and development of young turkeys and pigs. It was found that the Asido Bio-TCIT feed additive improves the physiological state of piglets and turkey poults, reduces feed conversion, increases live weight and profitability of meat production.

Proteomic investigation of liver from beef cattle (Bos indicus) divergently ranked on residual feed intake.

Proteomics studies can be used to identify proteins that affect feed efficiency traits, related to cost and profitability of meat production. We used a proteomic approach based on two-dimensional electrophoresis (2D-PAGE) in combination with mass spectrometry (ESI-MS) to study liver samples of Nellore bulls divergently ranked according to residual feed intake (RFI). The study showed that 71 protein spots were expressed differentially (P < 0.05) among RFI groups and 47 were identified by ESI-MS. In RFI, efficient animals (low RFI) eat less than predictions, based on their weights and growth rate, while inefficient animals (high RFI) that eat more than predicted. Data from 18 animals (9 high vs. 9 low RFI) aged 24-26months in feedlot finishing were used. Immediately after slaughter, liver samples were collected and protein extracts were separated. The gels of RFI groups were scanned and the images analyzed, whereby we found 279 and 215 liver protein spots in high and low RFI bulls, respectively. The proteins identified were related to the following biological functions: (I) oxygen transport and blood flow; (II) mitochondrial function and energy metabolism; (III) amino acid metabolism, ion transport, and cell survival. The study suggests hemoglobin subunit beta and heat shock protein 71kDa and as molecular markers to study FE in Nellore cattle. Moreover, proteins such as 3-ketoacyl-CoA thiolase and glutamate dehydrogenase 1 were found in liver from high and low RFI animals, respectively. Such protein expression could be associated with changes in the oxidative capacity of RFI phenotypes.