scholarly journals Effect of lysine feeding allowance on growth performance and carcass characteristics of growing pigs

2019 ◽  
Vol 9 (4) ◽  
pp. 646-650
Author(s):  
O. I. Skoromna ◽  
O. P. Razanova ◽  
T. Y. Tkachenko

The purpose of the study was the effect of lysine in the diets on the performance and slaughter indices of pigs during fattening. Young pigs of the experimental group, for the introduction to the diet of lysine, for 100 days of fattening had a greater live weight of 7.7 kg, or 6.4%. Control slaughter of pigs about the same indices of slaughter output of carcasses at the level of 84.0-86% in the experimental with a difference of slaughter weight by 4.3 kg in favor of the experimental group. A lower yield of internal fat and average fat thickness of 13.0% in experimental pigs was found, which confirms a more intense synthesis of muscle tissue. The content of total and bound moisture in muscle tissue was higher by 4.7% and 7.5%, respectively, in the pigs of the experimental group against control, but lower by 2.5% of free moisture. The consequence of these indicators is a lower solid content of 4.5% in the experimental group of pigs.

Author(s):  
S. Grikshas ◽  
N. Kulmakova ◽  
K. Spitsyna ◽  
A. Dar’in ◽  
T. Mittelshtein

Mycotoxins have been formed in feed are secondary metabolites of fungi and are quite stable substances that have teratogenic, mutagenic and carcinogenic effects. An effective way to combat mycotoxins in feed is the use of feed additives that adsorb toxins, prevent their absorption in the gastrointestinal tract of the animal and are excreted from the body. The infl uence of coconut enterosorbent Shelltic Es on fattening and meat qualities of young pigs has been studied. It has been found in the process of fattening that the highest feed digestibility was in pigs of the experimental group, in the diet of which enterosorbent has been added. The results of studies of the chemical composition and technological properties of pork have been provided. The positive eff ect of enterosorbent on precocity, absolute average daily gain of live weight and reduction of feed expenditures per 1 kg of gain has been revealed. In pigs from the experimental group the average thickness of the fat was higher and the area of the “muscle eye” was lower compared with animals of the control group, which indicates that higher rates of carcass yield have been obtained due to faster accumulation of fat tissue. The weight of internal organs of pigs indicates the intensity of metabolic processes in the body. In experimental animals the weight of the lungs was 0,1 kg lower, and the liver and heart were higher by 0,13 and 0,01 kg, respectively. Enterosorbent had no effect on the content of vitamins in the liver of pigs of the compared groups. The content of impurities of organochlorine toxicants and toxic elements in the meat and liver of animals of the experimental group was lower than that of control analogues. Therefore, the use of enterosorbent Shelltic Es promotes more active excretion of them from the body.


Author(s):  
A. S. Ivanova ◽  
N. V. Dunaeva

Increasing the production of pork meat requires careful work not only in terms of breeding, but also in the organization of complete feeding of animals, the correct selection of feed and feed additives containing the necessary nutrients. The purpose of the work was to analyze the use of premix in feeding young pigs on fattening. Two groups of fattening young pigs (Large White×Landrace) have been selected for the researches using the method of analogous groups, taking into account the breed, age, and live weight per 20 heads in each group with a live weight of 35 kg. Pigs of the control group have received the main economic diet, and animals of the experimental group have received an additional premix Khutorok at the rate of 10 g of premix per 1 kg of feed. The results have shown that the best age to reach 100 kg was in the experimental group of pigs – 215,8 days, which received premix with feed that characterizes their higher precocity by 36,3 days (P < 0,001) than in the control group of animals. The use of this premix had a positive impact on the livability of young animals, in the experimental group it was by 9,3 abs.% more than in the control group of animals. Thus, the best fattening traits have been possessed by young pigl of the experimental group have been received the premix Khutorok in their diet at the rate of 10 g of premix per 1 kg of feed. The obtained data indicate the feasibility of using the premix Khutorok in the feeding pigs for fattening.


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):  
M.G. CHABAEV ◽  
◽  
E.YU. TSIS ◽  
R.V. NEKRASOV ◽  
M.I. KLEMENTEV

Selenium plays an important role for maintaining complex and adequate nutrition of fattened young pigs. It also has a big biological importance to maintain growth and health, as well as for biochemical and physiological processes This study presents the results of a production experiment to determine the effect of organic and inorganic forms of selenium on growth indicators, immunohematological blood parameters and slaughter qualities of fattened pigs in period I and II. Test feeding with various forms of selenium has been implemented with two groups of analogs (N = 60; n = 30), taking into account age and live weight. The experiment was conducted on castrates of large white breed, which were divided into two groups of 30 heads each following the principle of analogues (taking into account their age, live weight). The studied fattened pigs received standard complete feeds of the SK-5 and SK-6 types for a period of 105 days. Growing pigs were fed with organic selenium for 20 mg/kg as part of the feed 64 mixture per head in the first and second period of fattening, while the animals of the control group were fed with 0.3 mg/kg of the inorganic form of selenium. Including a chelated form of selenium in the complete feed of castrates at the rate established in the course of scientific and economic studies has led to 757 g of average daily gain, which is 8.1% more as compared to the control group. The concentration of red blood cells in the blood of growing pigs fed with 20 mg/kg of selenium chelate increased by 6.3%, hemoglobin – by 2.4%, and white blood cells – by 7.1% as compared to the control. Feeding organic selenium to fattened young pigs contributed to a significant increase in specific units of protein activity by 38.65% (p < 0.01), BASC – by 7.63%, as well as lysis – by 40.06% (p < 0.05), and phagocytic activity by 3.33% in blood serum as compared to the control. The half-carcasses of hogs who had received fed rations including selenium chelate fetured slaughter weight and slaughter yield, respectively, higher – by 6.4 and 0.6% as compared with the control analogues. The use of the established norm of organic selenium in the diets of fattened young pigs according to the results of production testing is economically profitable and contributes to a per-head profit of 420 rubles.


1995 ◽  
Vol 61 (1) ◽  
pp. 149-154 ◽  
Author(s):  
J. Powles ◽  
J. Wiseman ◽  
D. J. A. Cole ◽  
S. Jagger

AbstractData from experimental programmes designed to investigate the effect of chemical structure of fats upon their apparent digestible energy (DE) value for pigs were subjected to regression analysis. For growing pigs, over the approximate live-weight range 30 to 90 kg, 25 data points were available, with fats evaluated having a range in the ratio of unsaturated to saturated fatty acids (U/S) from 0·66 to 15·67 and in free fatty acid (FFA) content from 8 to 818 g/kg. Sixteen data points were available for young pigs of approximately 12 kg live weight with a range in U/S from 0·62 to 5·71 and in FFA content from 54 to 756 g/kg. The wide range of values for U/S and FFA content had been obtained by blending different fats and, therefore, represented both the range and extremes likely to be found in the formulation of pig diets. Derivation of prediction equations for DE were based upon a series of non-linear regression analyses employing, in sequence, U/S, U/S + FFA content and U/S × FFA content. The DE offats could be predicted from U/S and FFA content with equations accounting for 0·802 and 0·768 of the variation in DE values for growing and young pigs respectively. The most appropriate equation for pigs of all live weights employed U/S and FFA content additively (U/S + FFA content). The equation for growing pigs was DE (MJ/kg) = 36·898 – (0·0046FFA (g/kg)) — 7·33e(–0·906U/S) and for young pigs was DE (MJ/kg) = 37·890 — (0·0051FFA (g/kg)) –8·20e(–0·515U/S). Comparisons revealed that differences between the two age groups, with lower values achieved with younger pigs, -were more pronounced the lower U/S and the higher FFA content of the fat.


Author(s):  
L. Gamko ◽  
M. Badyrkhanov

The purpose of the researches was to study the influence of different doses of smectic kizelgur and calf skim milk replacer in the recipes of compound feed for young pigs under the conditions of industrial pork production technology. The experimental part of the work has been performed under the conditions of the pig complex of LLC “BMPK” in the Karachevsky area in the Bryansk region. The research materials were compound feed for young pigs on fattening in the inclusion of different doses of smectic kizelgur. The infl uence of feeding compound feed with different doses of smectic kizelgur and calf skim milk replacer to young pigs on productivity, digestibility of nutrients and use of nitrogen, morphological and biochemical parameters of blood, fattening and meat traits of young pigs has been studied. Effective recipes for feeding compound feeds to young pigs prepared with the inclusion of different doses of smectic kizelgur and calf skim milk replacer have been identified. The data have been obtained from the first experiment of young pigs when them fed compound feed with different doses of smectic kizelgur; it has been followed that at the end of fattening the biggest live weight of gilts had in the 4th experimental group fed compound feed, which included 3 % smectic kizelgur. The influence of the additive on changes in live weight and daily gains when adding smectic kizelgur to compound feed in doses of 1,5 and 2,0 % was less, but the trend to increase these indicators over the period of fattening has remained. In the second experiment young pigs have been fed by compound feed, which included different doses of smectic kizelgur and calf skim milk replacer the average daily gain in live weight was higher in the 3rd experimental group, where they fed compound feed with the addition of 2,5 % smectic kizelgur and 2,5 % calf skim milk replacer by 2,2 %, than in the control group. The highest efficiency has been also obtained in the 3rd experimental group, where the monetary revenue has been received by 2160 rubles more in comparison with the control group of pigs.


Author(s):  
L. M. Darmohray ◽  
I. S. Luchyn ◽  
B. V. Gutyj

The results of the influence of different amounts of triticale grain in feed on productivity, feed conversion and economic parameters of young rabbits for intensive growing technology are presented. For the feeding of experimental young, full-grain granulated feed was used in the structure of which there was a different grain content of triticale: experimental group II – 10.0%, III, IV and V experimental groups – 20.0%, 30.0% and 40.0% respectively. Experimental young rabbits of the first control group fed full-range feed, which was balanced by the main nutrients. According to the results of the research, it was found that from the 2nd week fattening in rabbits of experimental groups, which received a grain of triticale in the diet, an increase in live weight was observed in comparison with the control group. During the whole period of cultivation, the highest average daily gain of live weight was observed in rabbits of experimental group IV, which was 42.5 g, which is 10.1% higher compared to control. The advantage of rabbits II, III and V of experimental groups fed 10.0%, 20.0% and 40.0% of tritiacale derivatives was 3.0, 5.7% and 1.0%, respectively, in comparison with analogues of the control group. A similar trend was observed in terms of the absolute increase in live weight. According to the indicator of integrated assessment (RBC) of young rabbits, based on the average daily gain and width of the lumbar, the highest value was found in youngsters in the IV group (277.95) for the use of mixed fodders containing 30% of the grain yield of Triticale Harroza variety in the diet. The prospects of further research concerning the influence of various amounts of the investigated feed factor on reproductive indices of rabbits are outlined.


2019 ◽  
pp. 63-68
Author(s):  
Vladimir Anikeevich Pogodaev ◽  
Irina Mukhamedovna Kardanova ◽  
Maiya Muratovna Aslanukova ◽  
Lev Ivanovich Konkov

The effectiveness of the biogenic stimulants action based on the larvae of the SITR bees drone brood and adult individuals of the ST drones on the chemical composition, physical and chemical, commodity technological properties, nutritional and biological value of the muscle and fatty tissues in young turkeys is studied. The turkey-poults of the 1st group received injections of a physiological salt solution, and the 2nd and 3rd experimental groups, respectively, of the SITR and ST biological stimulants, three times at the age of 1, 7 and 14 days at a dose of 0.1 ml per 50 g of live weight. It was established that in the middle sample of the muscle tissue in turkeys of the 2nd and 3rd experimental groups there were less water and more dry matter and protein. Biogenic stimulants contributed to the synthesis of muscle tissue in turkeys of the 2nd and 3rd experimental groups, in which contained 1.79 (B>0.999) and 1.31 (B>0.99) absolute % more protein and 0.32 and 0.23 absolute % less fat than in the control group. In the muscle tissue of turkeys stimulated with biogenic preparations, there were more tryptophan by 1.63 and 0.84 mg% and by 0.92 and 0.54 mg% less hydroxyproline than in turkeys at the same age of the control group. The protein-quality index of muscle tissue was higher in turkeys of the 2nd and 3rd experimental groups by 3.08 and 1.72% than in the control. The first place in the overall assessment of meat and broth quality was taken by the turkeys from the 2nd experimental group; the second place was taken by the turkeys of the third experimental group. Their superiority over the control group was 0.151 and 0.109 points, respectively. The fatty tissue of turkeys in all experimental groups has good quality and high digestibility indices. It has in its composition a large amount of polyunsaturated fatty acids; this indicates its high biological value.


Author(s):  
V. I. Khalak ◽  
B. V. Gutyj

The article presents the results of studies of fattening and meat qualities of young pigs of different genealogical lines of large white breed and genotypes by the gene of melanocortin receptor – 4 (MC4R). The research was conducted in “Druzhba-Kaznacheyivka” LLC, the genetics laboratory of the Institute of Pig Breeding and APV NAAS and the animal husbandry laboratory of the State Institution Institute of Grain Crops NAAS. The work was performed according to the research program of NAAS №30 “Innovative technologies of breeding, industrial and organic production of pig products” (“Pig Breeding”). DNA-typing of the melanocortin-4 receptor gene (MC4R) was performed by Kim K., Larsen N., Short T. et al. (2000). Evaluation of young pigs for fattening and meat qualities was carried out taking into account the following quantitative characteristics: the average daily increase in live weight during the period of control fattening, g; age of live weight 100 kg, days; fat thickness at the level of 6–7 thoracic vertebrae, mm; the length of the cooled carcass cm; the length of the bacon half of the cooled half-carcass, cm. The length of the cooled carcass was measured with a measuring tape from the edge of the fusion of the pubic bones to the anterior surface of the first cervical vertebra; the length of the bacon half of the cooled half-carcass - from the anterior edge of the pubic bone to the middle of the anterior edge of the first rib (Berezovsky, Khatko, 2005). Conditions for feeding and keeping young pigs of the experimental groups were identical and complied with zootechnical standards. Economic efficiency of use of animals of various genotypes (МС4RАА, МС4RАG) and biometric processing of the received data (Lakin, 1990). calculated according to generally accepted methods. It is established that young pigs of large white breed of controlled population at the age of reaching live weight of 100 kg exceed the minimum requirements of the elite class by 6.73, fat thickness at the level of 6–7 thoracic vertebrae – 30.84, length of chilled carcass – 3.52 %. Significant difference between animals of different genotypes by melanocortin 4 receptor gene (МС4RАА, МС4RАG) was established by the average daily gain of live weight during the control period of fattening, the age of reaching live weight of 100 kg, fat thickness at the level of 6–7 thoracic vertebrae, length half of the cooled half-carcass and a complex index of fattening and meat qualities (B. Tyler's index). Young pigs of large white breed line Kotilo UA 8819347 outperformed peers line Azuro UA 8800557 on average daily live weight gain during the control period of fattening by 5.29%, the age of 100 kg live weight – 3.29 %, fat thickness at the level of 6–7 breasts vertebrae – 7.14 %. The longer length of chilled carcass (by 1.13 %) and the length of bacon half of chilled half carcass (by 2.68 %) were characterized by animals of Azuro UA 8800557. The correlation coefficient between fattening and meat qualities in young pigs of large white breed of the controlled herd varies ranging from –0.865 (tr = 22.26, P < 0.001) to +0.913 (tr = 35.43, P < 0.001). The maximum increase in additional products was obtained from young pigs of the МС4RАG genotype (+2.57 %) and the genealogical line Kotilo UA 8819347 (+4.86 %), and its cost is +694.26 – 1312.88 UAH/head. in accordance.


Author(s):  
Petr Doležal

Twenty dairy cows were used in an experiment at which the influence of silages with different content of acids on the rumen fermentation was studied. Animals were divided into experimental and control group, each of them about 10 individuals. Feeding ratio consisted of maize silage (26 kg), alfalfa silage (13 kg), meadow hay (1 kg) and corn mixture (8.5 kg). The experimental group was fed an inoculated maize silage, with higher contents of fermentation acids. Intake of total acids per 1 kg live weigh was higher in the experimental group than control group (1.98 g/kg; 1.48 g/kg live weight, respectively). The rumen fluid was taken per orally 2-3 hours after feeding. Mean value of pH of rumen fluid was significantly (P<0.05) lower in the experimental group (5.8 ± 0.08) in comparison with control group (6.2 ± 0.06).The most significant increase (P<0.01) of VFA content (125 ± 5.2 mmol/l) and lactic acid content (4.8 ± 0.2 mmol/l) was observed in rumen fluid of experimental group. Significant differences (P<0.05) of propionic acid and butyric acid content were also found out between the groups. Nevertheless, acetic acid content was insignificant (P>0.05) lower in experimental group. A protozoa (infusoria) content was significantly (P<0.01) lower in the experimental group (175.76 ± 12.54 thousand/ml) as compared with the control group (288.1 ± 13.73 thousand/ml).


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