Productivity of young sheep of Romanov breed at diff erent level of feeding

Author(s):  
V. G. Dvalivishvili ◽  
◽  
A. S. Khodov ◽  

The purpose of the research was a comparative study of the efficiency of feed use and the productivity of young sheep at different feeding levels, as well as clarifying the norms of metabolic energy and raw protein for growing young rams of Romanov breed with intensive rearing and fattening at the age of 3 to 10 months. Scientifi c and economic experiment has been carried out in the sheep breeding complex of the breeding farm in the OOO Farm “Pokrov” in the Zubtsovsky area in the Tver region. After weaning of sheep at the age of 3 months, 2 groups of young rams and 2 groups of young ewes have been formed, from twin litters per 15 heads in each. It has been found that the intensity of the growth of young rams was higher at both levels of rearing and fattening. The young rams of the 1st control group grew by 16,61 kg during the experimental feeding period, and the young ewes by 9,62 kg. In animals of the 2nd experimental group, the difference was 5,52 kg or 32,8 % in favor of the young rams. All indicators of the slaughter of young rams, depending on the level of feeding diff ered significantly. Thus, the difference in removable weight was 5,77 kg or 17,7 % in favor of animals of the 2nd experimental group. The difference between the groups by pre-slaughter weight was 5,74 kg or 19,2 % (P ≤ 0,001). By weight of the hot carcass, the sheep of the 2nd experimental group significantly exceeded the 1st control group by 2,82 kg or 21,3 % (P ≤ 0,01), by slaughter weight the difference was 3,97 kg or 29,0 % (P ≤ 0,01). The slaughter yield increased from 45,7 to 49,5 % or 3,8 abs.%. Age affects the efficiency of mutton production. Thus, the cost of 1 kg of mutton did not diff er from 7-month-old and 10–month-old rams, and feed expenditures increased significantly, therefore the prime-cost of mutton in older animals also increased, and the profitability of production decreased. Therefore, the slaughter of animals and the sale of mutton under intensive rearing is more effective at the age of 7 months.

Author(s):  
S. I. Nikolaev ◽  
O. V. Korneeva ◽  
V. V. Shkalenko ◽  
A. K. Karapetyan ◽  
L. A. Syuliev

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 %.


Author(s):  
A. Redka ◽  
V. Bomko ◽  
M. Slomchіnskiy ◽  
O. Chernyavskyy.

The effectiveness of the use of sulfate and the mixed zinc ligand complex Zinc and the effect of their feeding on the slaughter indicators of broilers of the Cobb-500 cross were studied after the completion of scientific and economic experience and control slaughter conducted in the premises of the vivarium of the Bila Tserkva National Agricultural University. The difference in feeding conditions between the groups was that for the poultry of the first group, depending on age, compound feed was prepared using zinc sulfate in a dose corresponding to the introduction of 60, 50 and 40 g of element per 1 ton of feed (control), for the second - using a mixed zinc ligand complex at a dose that also corresponds to the introduction of 60, 50 and 40 g of element per 1 ton, and for the third - using a zinc mixed mixed ligand complex at a dose corresponding to the introduction of 45, 37.5 and 30 g. Zinc concentration in the mixed fodder decreased as the age of birds increased. The control slaughter, which has been carried out after the experiment, shows that the different dose use of Sulphate and Zinc mixed ligand complex differently influences on the slaughter characteristics of the control and experimental bird groups. Thus, the largest pre-slaughter weight (2649.3 g) of broiler chicks of the 3rd group is (p <0.01) if they consume mixed fodder with a mixed ligand complex of Zinc at doses corresponding to the adding of 45, 37.5 and 30 g of the element per 1 ton of mixed fodder. The pre-slaughter weight of the 2nd group, which has consumed mixed fodder with Zinc mixed ligand complex at a dose corresponding to adding 60, 50 and 40 g of the element per 1 ton of feed is also higher than in the control group (2549.3 g). But the probable difference for this index is not established. In general, the pre-slaughtered weight of the 2nd and 3rd group is higher than the weight of the the control group, respectively by 4.6 and 8.7 %. Regarding the mass of the gutted carcass, it was also greater in the birds of the 2nd and 3rd experimental groups, and the difference was significant. An analysis of the relative indicators of the yield of slaughter products showed that they were better in poultry that consumed compound feeds with a mixed zinc ligand complex. So, the output of a half-gutted carcass was the largest among broilers of the 3rd experimental group (84.19 %), and the difference in this indicator compared with the control was significant (p <0.05). Chickens of the 2nd and 3rd experimental groups showed a tendency to increase the output of the pectoral muscles, muscles of the limbs, skin, lungs and heart. The results of scientific and economic experience have shown that feeding compound feed with the mixed zinc ligand complex, in comparison with sulfate, can improve the slaughter quality and yield of edible carcasses. The relative index analysis of the slaughter products reveals that the poultry fed on Zinc mixed ligand complex, has better result. Thus, the yield of a semi-eviscerated carcass is the highest in broiler chicks of the experimental group № 3 (84.19 %), and the difference in this characteristics has been compared with the control group (p <0.05). There is an output increasing tendency of the thoracic muscles, limb muscles, skin, lung and heart in the 2nd and 3rd experimental group. But the probable difference of these indexes in the control and experimental groups has not been established, except for the heart output. Thus, it can be concluded that broiler chicks fed on fodder with Zinc mixed ligand complex, in comparison with Sulfate one, makes it possible to improve the slaughter characteristics and the yield of edible parts of the carcass, and the optimum dose is equivalent to 37.5 g of the element per 1 ton of the feed. Key words: broiler chickens, pre-slaughter weight, slaughter yield, carcass weight, mass of internal organs, Zinc mixed ligand complex, Zinc sulfate.


2021 ◽  
Vol 14 ◽  
pp. 68-82
Author(s):  
V.F. Radchikov ◽  
◽  
V.P. Tzai ◽  
S.N. Razumovskiy ◽  
I.F. Gorlov ◽  
...  

Aim. Development of KR-1 concentrate compound feed compositions with the inclusion of malt sprouts, determination of the optimal rates for the introduction of malt sprouts into the compound feed for calves aged 10-75 days. Materials and Methods. In the course of the study, zootechnical, biochemical and mathematical methods of analysis were used. The obtained digital material was processed by the method of variation statistics, taking into account the Student's t-test, using the Microsoft Excel software package. Results. On the basis of the control feedings carried out for the period of the experiment, the actual diet of calves was established, which consisted of 64-67% milk and 24-25% of the starter compound feed. The rest of the ration consisted of corn and oats, cereal-legume hay and forb haylage. In terms of nutritional value and metabolic energy content, the differences between the groups were minimal from 2.27 feed. Units and 21 mj in 1 control up to 2.3 feed. Units and 21.7 mj in 2 experimental. The results of groups 3 and 4 were within the ranges listed above. The difference in the consumption of dry matter is slightly greater, so in the control group – 1396 g, in the experimental group it is 5.6-6.9% more. The higher consumption of compound feed by the experimental animals also contributed to the higher level of protein in the diet of 322-324 g versus 306 g in the control. As a result of feeding various mixed fodders, it was found that the sugar-protein ratio was 1.04 in the control, in the experimental ones it was at the level of 0.98-1.0, the energy-protein ratio was 0.3, the gross energy of the diet was 28.4 mj in the control. Experienced 29.9-30.2 mj, the coefficient of energy use to maintain 0.8, the ratio of calcium to phosphorus in all diets was 1.24-1.27 Conclusion. The highest productivity was noted in calves of the 2nd experimental group containing 5% malt sprouts in the compound feed, which amounted to an average of 806 g per head per day for 65 days of the experiment. Increase in the concentration of malt sprouts in compound feed by 5 and 10 pp. reduced live weight gain by 1.4 and 7.5%, respectively. Given that the 5% level in compound feed allowed an increase in growth by 9.3%. This influence, both positive in the 2nd experimental group, and negative in the 3rd and 4th groups, was also reflected in the feed costs for obtaining an increase, decreasing them by 7.3% and increasing by 2.3 and 8.5%, respectively. As a result, the expenditures of metabolic energy per 1 kg of gain in the control group were lower than in 3 and 4 experimental groups, the same tendency persisted in the consumption of crude protein for gain. More detailed indicators of the energy efficiency of the fed rations showed that the energy gain was 8.05 MJ in the 2 experimental group, which was fed with compound feed with 5% malt sprouts, the second result was a control of 7.1 MJ, and the 3 and 4 experimental groups were 1.5 and 9 , 2% were lower, respectively. The expenditures of exchange energy per 1 MJ in the increase in live weight in the 2 experimental group were lower than the control indicator by 0.26 MJ, and in the 3 experimental group – by 0.39 and in the 4 – by 0.64 MJ higher.


Author(s):  
O. A. Shutova ◽  
N. V. Konik

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.


Author(s):  
G. Uskov ◽  
A. Tsopanova ◽  
T. Perezhogina

Complete feeding of ponies is provided on the basis of data on their nutritional needs depending on age, sex, physiological state and level of productivity (the amount of milk produced and the intensity of growth of young animals). Ponies are sensitive to a lack of vitamins and mineral elements in the feed. When there is a sufficient amount of organic and mineral substances, but a lack or absence of vitamins, horses and ponies have impaired metabolism. The purpose of this work is to study the effectiveness of the use of vitamin and mineral additive MEGA-VIT in the rations of pregnant and lactating mares of Shetland pony breed. It has been found during of the researches that the vitamin and mineral additive MEGA-VIT had a positive influence on the productive and physiological indicators of animals. The cost of spent feed for the entire period of experiment in the control group was 50,6 thousand rubles, and in the experimental group it was 11,8 thousand rubles more or 23,5 %. Revenue from the sale of young horses of the control group amounted to 400 thousand rubles, and experimental group – 440 thousand rubles, this is by 40 thousand rubles more than in control group. This led to the increase in profit in the experimental group of mares by 28,1 thousand rubles and accordingly the level of profitability by 3,2 %. It has been recommended on the results have been obtained on the base of researches to include 30 g/head/day in the rations of mares of Shetland pony breed during pregnancy, and 50 g/head/day during lactation.


The article is devoted to the solution of an urgent problem- influence of different lighting modes on the dairy productivity of cows. 2 groups of cows with 20 heads each were formed. In control group, light in the cowshed was 50-75 Lux for a light period of 7.5 h in January to 16.5 h in June, and in experimental group - 150-200 Lux and 16 h, respectively. It was found that the intensity and duration of illumination affects physiological state, reproductive ability and milk productivity of cows. In the experimental group of cows, compared with the control group, hemoglobin content in blood increased by 4.6% (P < 0.01), red blood cells - by 20.6% (P < 0.05), total protein - by 11.2% (P < 0.001), glucose - by 39.1% (P < 0.05). There was a tendency to increase the total calcium and inorganic phosphorus in blood serum of cows of the experimental group. The level of alkaline phosphatase in blood serum of cows in the control group was 71.5% (P < 0.01) higher than that of cows in the experimental group. Milk yield per 1 cow in the experimental cowshed was 433 kg more than in the control. The cost of 1 kg of milk in the experimental group was 0.94 rubles lower, and the profitability of milk production and sales is 9.42% higher than in the control group. To increase the milk productivity of cows, it is recommended to increase light level in barns for tethered keeping to 150-200 Lux, with the duration of lighting in the winter and transition periods of year up to 16 hours per day.


2020 ◽  
Vol 22 (Supplement_2) ◽  
pp. ii178-ii178
Author(s):  
Xing Zhang ◽  
Fuqiang Zhang ◽  
Mingyao Lai ◽  
Juan Li ◽  
Yangqiong Zhang ◽  
...  

Abstract OBJECTIVE To explore the effect of group medical games on the hospitalization adaptability of pediatric patients with neuro tumor. METHODS pediatric patients with neuro tumor (age:6 to 13 years) who were treated in hospital from June to December 2019 and were hospitalized for 1 month to 2 months. 29 pediatric patients(mean age:9y) were selected as the control group and treated as usual; 26 pediatric patients(meanage:8y) were selected as the experimental group for group therapeutic play intervention. Interventions last Monday, Wednesday and Friday of each week, with an average duration of one hour. Group medical play include: medical picture book education, medical preview game, emotional games, social table games. Two groups completed self-made questionnaires at the time of admission and two weeks after admission, including: diet, sleep, compliance, and social status, hospital adaptation and other related issues, two groups completed a satisfaction questionnaire after two weeks of admission, recorded analysis and compared the difference of questionnaire data and satisfaction of the two groups of pediatric patients. RESULTS There was no statistical difference in age and sex between the two groups, and there was no significant difference in baseline RESULTS: The re-test results showed that the experimental group was significantly better than the control group in terms of social status, hospital adaptation, compliance and family satisfaction(p<0.05). CONCLUSION Group medical games can effectively improve the adaptability, compliance and family satisfaction of pediatric with neuro tumor.


2021 ◽  
Vol 7 (5) ◽  
pp. 3445-3451
Author(s):  
Chen Yake

Objectives: In this paper, the effects of tobacco on aerobic exercise ability and physical fitness recovery of college students were studied. Methods: University group sports intervention form: traditional characteristic project (basketball) + Taiji soft ball (R&D intervention project). Exercise time: 3 times/week; Activity duration: 30min; Activity intensity: the heart rate is controlled at 120-140 beats/min. All the college students in the experimental group are students who have never smoked, and the college students in the control group are students who have smoked for more than two years. The other conditions are the same. Results: The exercise time and endurance of experimental groups I and II were significantly lower than those of the control group, and the cardiopulmonary function was significantly lower than that of the control group. The indexes of experimental group II changed significantly compared with experimental group I, and the difference was statistically significant. Conclusion: Cigarette smoke can significantly reduce the aerobic exercise ability and anti fatigue ability. The longer the smoking time, the more serious the adverse effects. Therefore, tobacco smoke and nicotine will damage college students’ aerobic exercise ability and have a negative impact on the recovery of physical fitness after exercise.


2017 ◽  
Vol 13 (10) ◽  
pp. 124 ◽  
Author(s):  
Norhayati Che Hat ◽  
Mohd Fauzi Abdul Hamid ◽  
Shaferul Hafes Sha'ari ◽  
Safawati Basirah Zaid

Implementation of animation as an Arabic language teaching aid is an innovation in creating an atmosphere that can influence student achievement. This study aimed to identify the effectiveness of the use of animation in Arabic language teaching and learning among diploma students at Universiti Sultan Zainal Abidin (UniSZA), Terengganu, Malaysia. A total of 66 diploma students were randomly selected and divided into experimental group (n = 33) and control group (n = 33). The results obtained from the data collected from pre-and post-test for each group were analyzed using t-test in SPSS version 17.0. The results showed a significant difference of (t = 8789, df = 64, p <0.05) between the achievement of the experimental group and the control group in the post test. The difference in mean score of the experimental group and the control group was 33.03. This shows that there is significant improvement in Arabic language according to the groups. The difference prove that the use of animation in learning sessions contribute to the achievement of students in the Arabic language. This study advocate the idea that animation applications can be integrated as part of language teaching aid to positively improve student achievement, classroom learning environment and student motivation. 


2020 ◽  
Vol 6 (2) ◽  
Author(s):  
Davi Sofyan

The purpose of this study was to determine how much influence the cooperative learning model type student team's achievement division has on basketball shoot lay-up skills. The research method used in this research is a quasi-experimental method. The type of research design used was the non-equivalent group design. The population in this study were students of class XI SMA Negeri 1 Majalengka in 2019 totaling 424 students. The sampling technique used in this study was cluster random sampling technique. The sample in this study amounted to 214 students consisting of class XI IPS 1-4 and XI MIPA 7-8. The experimental group class XI IPS 1-2 and XI MIPA, control group class XI IPS 3-4 and XI MIPA 8. The results showed that the mean pre-test lay-up shoot of the experimental group was 4.09 while the control group was 3.92. The mean post-test shoot lay-up of the experimental group was 6.76 while the control group was 4.72. Furthermore, by looking at 95% confidence interval of the difference, there is a difference between the shoot lay-up results of the experimental group and the control group, which is -0.190 to 2.412. Thus, it can be concluded that STAD is effective in improving basketball shoot lay-up skills.


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