Consumption and use of the main nutrients of the ration when crossbreeding cattle of Kazakh White-headed and Hereford breeds

Author(s):  
E. A. Nikonova ◽  
V. I. Kosilov ◽  
E. M. Ermolova

Crossbreeding in cattle contributes to the production of crossbred young animals, which due to enriched heredity have the potential for intensive growth and achieving a high level of beef productivity. The purpose of the work was to study the infl uence of crossbreeding of cattle of Kazakh White-headed and Hereford breeds on the efficiency of consumption and use of the main nutrients of the ration by steers, heifers and castrated steers. For the experiment, 3 groups of heifers and 6 groups of steers of the following genotypes have been formed: the 1st Kazakh White-headed, the 2nd – 1/2 Hereford×1/2 Kazakh White-headed, the 3rd – 3/4 Kazakh White-headed×3/4 Hereford. At the age of 3 months half of the steers were castrated. It has been found that purebred animals were inferior to crossbreds from the crossbreeding of cattle of Kazakh White-headed and Hereford breeds. For example, during the rearing period, purebred animals of Kazakh White-headed breed consumed 2638,8– 3272,1 feed units and 2674,8–3549,2 EFU, crossbreds of the genotype 1/2 Hereford×1/2 Kazakh White–headed – 2811,6–3389,2 feed units and 2836,4–3640,1 EFU, crossbreds of the genotype 3/4 Kazakh White-headed×3/4 Hereford – 2749,2–3332,1 feed units and 2764,3–3332,0 EFU, metabolic energy, respectively, by genotypes – 26 748,1–35 492,1 MJ, 28 364,2 – 36 401,2 MJ and 27 643,1–35 941,9 MJ, digestible protein – 246,0–344,2 kg, 296,1–356,9 kg and 289,2–350,5 kg, crude protein-350,9–451,4 kg, 365,2–466,8 kg and 362,1–460,5 kg. The crossbreeding of cattle of Kazakh White-headed and Hereford breeds had a certain influence on the studied indicators. Thus, the best indicators of the efficiency of consumption and use of the main nutrients of the ration among steers, heifers and castrated steers were distinguished by half-blood crossbreds. At the same time, the largest amount of consumption of all nutrients in the ration was distinguished by steers, the smallest – heifers, castrated steers occupied an intermediate position.

Author(s):  
V. Minibaev ◽  
N. Gubaidullin

The analysis of the literature data shows that there is not enough information on the enrichment of the ration of cows of Black-and-White breed with a balanced feed complex Felucen K 1–2 that has caused the relevance of our researches. The purpose of the research was to increase the productive qualities of cows Black-and-White breed when using different doses of the balanced feed complex Felucen K 1–2 in their ration. The studies have been carried out in the Southern Urals, the optimal dose of use of feed complex Felucen K 1–2 that enhance milk productivity of cows of Black-and-White breed. According to the scheme of the experiment cows of the 2nd, 3rd and 4th experimental groups have been additionally fed to main ration 300 g, 350 and 400 g of the balanced feed complex Felucen K 1–2, consisting of vegetable protein and fat, easily fermentable carbohydrates, high-purity sodium chloride, macronutrients, trace elements, and vitamins. Animals of the 1st group have been served as control and complex Felucen have not been received. Studies have shown that cows of the 1st control group used less dry matter, EFU, metabolic energy, digestible protein, crude protein, crude fiber, and crude fat than their experimental herdmates. Thus, the superiority of cows of the experimental groups over the herdmates of the 1st control group in terms of EFU was 93,1–231,2 kg; metabolic energy – 933,7–2314,7 MJ; dry matter – 9,0–125,8; digestible protein – 8,9–29,7; crude protein – 4,6–18,3; crude fiber-13,1–48,4; crude fat – 11,6–21,0 kg. Animals of all experimental groups in comparison with the control group exceeded in terms of milk yield for 305 days of lactation by 435,2 kg or 6,60 % (P < 0,001); 814,4 kg or 12,34 % (P < 0,001); 684,1 kg or 10,37 % (P < 0,001); for 100 days of lactation – by 98,7 kg or 4,28 % (P < 0,001); 191,0 kg or 8,29 % (P < 0,001) and 167,8 kg or 7,28 % (p<0,001), respectively. The use of Felucen K 1–2 feed complex in the rations of lactating Black-and-White cows has shown its effectiveness, which has affected the feed consumption and effectiveness of their use, hematological indicators, the level of milk productivity and milk quality. From an economic point of view the dose of 350 g of balanced feed complex Felucen To 1–2 per animal per day is more reasonable.


Author(s):  
Asnawi Asnawi ◽  
Dwi Kusuma Purnamasari ◽  
I Ketut Gde Wiryawan

Evaluation of metabolizable energy of local rice bran have been conducted on Mojosari laying duck. The purpose of study was to calculate the energy values of local rice bran. Ten Mojosari laying ducks were randomly allocated of two types of feeds. Each laying duck was reared in individual cage (metabolic cage). Two types of feeds were basal diet (30% commercial feed: 70% corn), and 70% basal diet and 30% local rice bran. There are five duck as replication in each types of feed.  Metabolic energy (ME) was determined according to Farrel (1978) with any modification. The results indicated that the gross energy and apparent metabolically energy (AME) of rice bran were approximately 3317,00±17,30 kkal/kg and 2461,44±27,76 kkal/kg. Presentation of AME to Gross energy of local rice bran were 74.21 %.  Metabolizable protein of local rice bran were 55,71 ± 9,30% from crude protein intake. It is concluded that according to apparent metabolically energy (AME) and digestible protein, local rice bran is appropriate as supplement feed of laying duct particularly Mojosari laying ducks.


1970 ◽  
pp. 137-145
Author(s):  
A.V. Hutsol ◽  
V.Yu. Novakovska ◽  
N.V. Hutsol ◽  
V.V. Honcharuk

Purpose. To investigate the active effect of α-amylase, cellulase, neutral protease on the release of essential nutrients in vitro in the incubation medium. The task is to determine the effect of enzyme preparations on the in vitro decomposition of feed nutrients. Methods. In the process of the research general scientific methods were used: deduction, scientific hypothesis and abstraction. Methods of zootechnical analysis and active action of feed enzymes were used to determine the chemical composition of feed. Results. Solving the problem of improving the efficiency of digestion and assimilation of nutrients and biologically active substances of feed, clarifying the conditions, nature of processes and mechanisms that determine the intensity of digestion of feed in the digestive tract, is crucial in improving production efficiency. Studies have shown that the incubation of feed with different enzyme compositions had positive results. Due to the action of enzyme compositions including α-amylase, cellulase, neutral protease in different proportions, a positive effect of incubation of feed substrate on the content of crude protein, crude fat, crude fiber, crude ash, nitrogen-free extractives has been achieved. The nutritional value of compound feed (digestible protein, metabolic energy) after the introduction of enzyme compositions was determined by the calculation method. Conclusions. These data indicate a positive effect of different compositions of enzymes of cellulase, α-amylase and neutral protease on the level of the breakdown of essential nutrients in feed in vitro. The most effective result was found in the combination of feed with an enzyme composition in the amount of 5 g of cellulase, 1 g of α-amylase, 1 g of neutral protease, which leads to a decrease of crude fiber content by 3.1% compared to the control. Instead, the content of crude protein increased by 2.0%, crude fat – by 0.4%, crude ash – by 0.5%, BER – by 0.2% compared to the control. There are positive changes in nutritional value, digestible protein – by 9.4%, metabolic energy – by 2.9% compared to the control.


2021 ◽  
Vol 282 ◽  
pp. 04012
Author(s):  
N.V. Gaponov ◽  
J.L. Nersesyan ◽  
O.P. Neverova

The article is devoted to the current problem of providing rations with a source of protein with a high biological value. Such a source is suggested to be white lupine and products of its processing. Since, white lupine exceeds the protein content of peas, vetch and other legumes by more than 10%. And the significant content of fat in its composition allows, when using it, to reduce or completely abandon the use of sunflower oil in the diet. The use of white lupine allowed the experimental primates to use the food efficiently. The lowest costs were observed in the 3-test group. Energy costs were lower by 48.80%, crude protein by 47.22% and digestible protein by 51.3%. In the 2-experimental group, the costs of metabolic energy, crude protein and digestible protein were lower by 25.00%, 26.38% and 39.20, respectively. Thus, the inclusion of white lupine in the structure of the diet helps to improve the nutritional value of rations, to reduce the cost of nutrients and feed, improving the economic indicators of the maintenance of primates.


1970 ◽  
pp. 112-120
Author(s):  
K.P. Kovtun ◽  
Yu. A. Veklenko ◽  
V.A. Yashchuk

Purpose. Optimization study of the spatial arrangement of the components in binary legume-cereal grass mixtures by selecting a complementary composition of the phytocenosis, the method of sowing perennial grasses to create hayfields with sand sainfoin in the Right Bank Forest-Steppe natural zone of Ukraine. Successful placement of legumes and cereals in two-component mixtures significantly eliminates the negative interaction at different stages of ontogenesis, reduces interspecific competition for environmental resources, balances the structure of the phytocenosis, increases its productivity and prolongs the productive life of the sown hayfields. Methods. System analysis, field, laboratory, comparative calculation methods. Results. The field experiment investigated the influence of the spatial arrangement of sand sainfoin under various methods of sowing with medium wheatgrass, team wheatgrass, ryegrass and high ryegrass on the yield of dry matter, feed units, crude protein, metabolic energy and providing the feed unit with digestible protein. It is established that in comparison with the traditional row mixed method of sowing binary mixtures of sand sainfoin with different types of cereals the highest yield of dry matter, feed units, crude protein, metabolic energy (on average for three years) was obtained by cross and cross-row methods. The highest yield of crude protein and the supply of feed unit with digestible protein was obtained by cross-sowing method. Conclusions. The influence of spatial arrangement of sandy sainfoin and cereal grasses on the formation of phytocenosis and its forage productivity is substantiated. The prospects of cross and cross-row sowing methods of binary sainfoin-cereal grass mixtures are proved. This arrangement of legumes and cereals reduces interspecific competition for environmental resources, balances the structure of the phytocenosis, increases its productivity and the quality of the grass mass and prolongs the productive life of the sown hayfields.


2021 ◽  
Vol 2021 (3) ◽  
pp. 60-70
Author(s):  
Nikolay Gaponov

The article is devoted to the current problem of providing rations with a source of protein with a high biological value. Such a source is suggested to be white lupine and products of its processing. Since, white lupine exceeds the protein content of peas, vetch and other legumes by more than 10%. And the significant content of fat in its composition allows, when using it, to reduce or completely abandon the use of sunflower oil in the diet. This favorably distinguishes white lupine from soybean and sunflower meal and cake, as well as partially animal feed, which are currently used as the main sources of fodder protein. This statement is confirmed in our experiments. As a result, it was found that the use of white lupine in the structures of complete feeds can improve the nutritional value of rations. It has a positive effect on the increase in live weight in animals with the inclusion of native white lupine in the structure of the diet in an amount of 10% to 33%, respectively, with a content of lupine in the diet of 20%, the increase in live weight is 95% higher. Provides a decrease in the cost of the resulting complete feed, when lupine is included in its structure in an amount of 10% by 4.35% and with a lupine content of 20%, the cost of 1 kg of compound feed is reduced by 14.49%. The use of white lupine allowed the experimental animals to use the food efficiently. The lowest costs were observed in the 3 test group. Energy costs were lower by 48.80%, crude protein by 47.22% and digestible protein by 51.3%. In the 2 experimental groups, the costs of metabolic energy, crude protein and digestible protein were lower by 25.00%, 26.38% and 39.20, respectively. Thus, the inclusion of white lupine in the structure of the diet helps to improve the nutritional value of rations, to reduce the cost of nutrients and feed, improving the economic indicators of the maintenance of animals.


2018 ◽  
Vol 1 (94) ◽  
pp. 45-50
Author(s):  
M.S. Korniychuk ◽  
N.V. Tkachenko

The expediency of fusarium resistant lupines usage in organic farming for improving soil fertility and producing high protein feed for livestock is justified in this article. Organic production excludes the use of mineral fertilizers and pesticides. In these circumstances, increases the value of cultures that positively affect the fertility of soils and their phytosanitary status. These crops include annual fodder lupine (yellow, white and angustifolia), especially varieties that are resistant to disease. Having the highest nitrogen-fixing ability among annual legume crops, lupins, depending on the type and conditions of cultivation, can accumulate from 80 to 300 kg/ha of environmentally pure symbiotic nitrogen in biomass. Plowing the green mass (30-45 t/ha) is equivalent to the corresponding amount of manure or introduction of 5-7 t/ha of ammonium nitrate. 30 kg/ha of phosphorus and 50 kg/ha of potassium are entering the soil with plant remains. Therefore, lupine provides itself with nutrients and still leaves up to 150 kg/ha of nitrogen in the soil after harvesting for subsequent crops in crop rotation. In organic production, fusariosis resistant varieties of lupines are also interesting as a source of high protein feeds for livestock. They are building up to 60 t/ha of biomass, which contains more than one ton of digestible protein. In grain of the fodder varieties contains 40-52% of crude protein, 5.5-6.0% of fat, 10-12% of sugar. The characteristic of fusarium resistant varieties of lupins (yellow, white and angustifolia), created in the NSC "Institute of Agriculture NAAS" and included in the Register of Plant Varieties of Ukraine is presented in this article. These varieties are practically not affected by fusariosis under the production conditions and do not require the use of fungicides during the growing season. They can be grown in crop rotation with a return period of 2-3 years, whereas for unstable it took 6-7 years. Because of the inability to use in organic farming fungicide to prevent crop losses from anthracnose, it is necessary to use predominantly angustifolia lupine varieties, which are now more tolerant to this disease, prevent sowing of infected seeds and adhere to crop rotation. Fusarium-resistant varieties of lupins are suitable for cultivation in poucous and sown crops, and in mixtures with other crops.


Viruses ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 267
Author(s):  
Shaoli Lin ◽  
Yan-Jin Zhang

Hepatitis E virus (HEV) is one of the causative agents for liver inflammation across the world. HEV is a positive-sense single-stranded RNA virus. Human HEV strains mainly belong to four major genotypes in the genus Orthohepevirus A, family Hepeviridae. Among the four genotypes, genotype 1 and 2 are obligate human pathogens, and genotype 3 and 4 cause zoonotic infections. HEV infection with genotype 1 and 2 mainly presents as acute and self-limiting hepatitis in young adults. However, HEV infection of pregnant women with genotype 1 strains can be exacerbated to fulminant hepatitis, resulting in a high rate of case fatality. As pregnant women maintain the balance of maternal-fetal tolerance and effective immunity against invading pathogens, HEV infection with genotype 1 might dysregulate the balance and cause the adverse outcome. Furthermore, HEV infection with genotype 3 can be chronic in immunocompromised patients, with rapid progression, which has been a challenge since it was reported years ago. The virus has a complex interaction with the host cells in downregulating antiviral factors and recruiting elements to generate a conducive environment of replication. The virus-cell interactions at an early stage might determine the consequence of the infection. In this review, advances in HEV virology, viral life cycle, viral interference with the immune response, and the pathogenesis in pregnant women are discussed, and perspectives on these aspects are presented.


1959 ◽  
Vol 52 (3) ◽  
pp. 364-368 ◽  
Author(s):  
W. Bolton

1. The efficiency of food conversion by pullets and yearlings fed on high- and low-energy diets has been determined.2. Egg production was slightly higher by birds fed the low-energy diet for both pullets and yearling hens; pullets laid more eggs than yearling hens.3. For each age, the gross food intake was greater for birds fed the low-energy diet; the consumptions of digestible protein, non-protein digestible energy and metabolizable energy were the same for both diets and both ages of bird.4. The food cost per dozen eggs was slightly greater in the yearling year when the cost of rearing the pullets was ignored, and about the same when it was included.5. The efficiency of utilization of digestible energy and protein showed only a slight decrease from the pullet to the yearling year.6. The variation in the composition and digestibility of eighteen consecutive mixes of the highenergy diet and twenty-five of the low-energy diet was: crude protein 2%, non-protein digestible energy 5% and metabolizable energy 0·4 kg. cal./g. The digestibility of the crude protein and oil was 87%, for both diets; carbohydrates were 81% digestible in the high-energy diet and 59% in the low-energy diet.


Author(s):  
K. I. Khidirov ◽  
◽  
G. J. Kutlieva ◽  
B. I. Turaeva ◽  
N. A. Elova ◽  
...  

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%).


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