scholarly journals Технологія застосування преміксів різного складу у свинарстві

Author(s):  
А. В. Коробка ◽  
Т. М. Рак ◽  
О. К. Бітлян ◽  
Т. М. Конкс

Дослідження присвячено технологічному обґрунтуванню доцільності дозованого використання у годівлі свиней преміксів, до складу яких входять солі  різної хімічної природи. Теоретично обґрунтовано й експериментально доведено індиферентний вплив солей мікроелементів різної хімічної природи при їх моновикористанні у складі преміксу «КС-5» на продуктивність тварин. Отримані результати проведених досліджень дали змогу зробити висновки, що оптимальним рівнем введення преміксу до складу раціону є  рівень 2,0 % , що підтверджується витратами корму на 1 кг приросту живої маси, які в цій групі склали 3,9 корм. од., проти  контролю – 4,3 корм. од. Застосування преміксів, які в своєму складі мають різні форми мікроелементів, особливо з  вуглекислих солей, позитивно вплинуло на ріст і розвиток молодняку та підвищили рентабельність виробництва свинини. From the point of view of economic substantiation of pig breeding in market conditions, the intensification of the industry implies, first of all, the provision of adequate feeding for animals. One of the solutions to this is the use of different forms of trace elements of trace elements in premixes. At present, considerable experimental and practical data on the effectiveness of the use of salts of trace elements of various chemical nature in feed technology, in particular chelated compounds, have been accumulated on the productive indices of the pork colony. However, the technological principles of the use of premixes, which consist of salts of trace elements of various nature, including chelates, have not been studied sufficiently, which impedes the effective use of them in feeding pigs. Consequently, the study of these problems is relevant and timely in the market conditions for pig breeding. The research is devoted to the technological substantiation of the expediency of dosage in feeding pigs of premixes, which include salts of different chemical nature. The indifferent influence of salts of trace elements of different chemical nature during their mono use in the composition of pre-KS-5 on animal productivity is proved theoretically and experimentally. The general results of the conducted studies allowed to reach the conclusion that the optimum level of introduction of premix into the diet is 2.0 %, which is confirmed by the consumption of feed per 1 kg of live weight gain, which in this group was 5.0 feed op., against control – 5.9 pounds unit The use of premixes, which in their composition have different forms of trace elements, especially carbonic salts, have positively influenced the growth and development of young, and increased the profitability of pork production.

2017 ◽  
Vol 13 ◽  
pp. 123-129
Author(s):  
Petr M. Makarov ◽  
Irina A. Stepanova ◽  
Anna A. Nazarova ◽  
Svetlana D. Polishchuk ◽  
Gennadiy I. Churilov

The article presents the influence of biopreparations containing nanoparticles of cobalt and cuprum on the physiological state of Holstein heifers in a case of adding them to the diet. We have studied parameters of the animals’ growth and development in dynamics of live weight gain, clinical and biochemical blood parameters, the leucogram and amino acid composition of the experiment animals’ blood during the experiment.


2008 ◽  
Vol 52 (No. 9) ◽  
pp. 277-283 ◽  
Author(s):  
J. Bouška ◽  
M. Štípková ◽  
M. Krejčová ◽  
L. Bartoň

The objective of the study was to determine the effect of growth and development intensity in Holstein replacement heifers on economically important animal traits. The intensity of growth was assessed by the average live weight gain until 14 months of age. In addition, live weight and height at the sacrum at 14 months of age were analysed as indicators of growth and development when evaluating the length of productive life. The milk yield of first-calvers increased as the average daily live weight gain in the rearing period increased. An opposite tendency was recorded for cows in their second and third lactation and the total production also decreased with a higher growth rate of heifers. The analysis of the relationship between growth rate and the following reproduction traits revealed that the increased average daily live weight gain to 14 months was subsequently associated with reduced reproduction efficiency in cows. The differences between the groups with the lowest and the highest average live weight gains in the number of days open in the first and second calving interval were 26.78 and 17.47 days, respectively. This tendency was also confirmed in the other reproduction traits analysed. Productive life was significantly longer in animals with the lowest intensity of growth and development compared to the other groups (2.17 to 5.49 months, <i>P</i> < 0.01).


1961 ◽  
Vol 1 (2) ◽  
pp. 73 ◽  
Author(s):  
NH Shaw

The performance of Townsville lucerne (Stylosanthes sundaica Taub.) as a legume for inclusion in native pastures dominated by spear grass (Heteropogon contortus (L.) Beauu. ex R. & S.) has been studied near Gladstone, in central coastal Queensland. A pasture mixture of Townsviille lucerne and spear grass, given 10.5 cwt 73 superphosphate, 1.5 cwt potassium chloride, and 5 oz sodium molybdate an acre, over a six-year period: produced five times as much Live-weight gain per acre as untreated native pasture. This increase was a combination of higher carving capacity and greater live-weight gain per head. In addition stock. were marketed at from one to two years earlier than normal. Pot and small replicated field experiments showed that Townsville lucerne responded significantly only to superphosphate and did not require potassium or various trace elements including molybdenum on these soils.


1964 ◽  
Vol 62 (1) ◽  
pp. 99-122 ◽  
Author(s):  
R. G. Gunn

1. Over 3 years, different levels of first winter nutrition were imposed on groups of North and South Country Cheviot ewe hoggs (lambs). In 1956–57, three levels, high, mid and low, were fed indoors. In 1957-58, only two levels, high and mid, were fed indoors, with the low level being represented by hill wintering. In 1958–59, two levels were represented by away wintering and hill wintering.2. Low-plane feeding was designed to simulate average hill wintering, creating a 10% loss in live weight. Mid-plane feeding was designed to maintain live weight at approximately the same level throughout the winter. High-plane feeding was designed to produce a live-weight gain of 15–20% in 1956–57 and the maximum gain possible in 1957–58.


1964 ◽  
Vol 6 (1) ◽  
pp. 47-56 ◽  
Author(s):  
F. E. Alder ◽  
J. C. Tayler ◽  
J. E. Rudman

The possibility of using hormones to increase the productivity of meat animals has been considered for a number of years (Hammond, 1957 and Scarisbrick, 1960). Lamming (1957) has pointed out that most of the work with hormones and beef cattle has been done in the U.S.A. under feedlot conditions. In this country Aitken and Crichton (1956), Dodsworth (1957) and Lamming (1957 and 1958) all obtained increases in rates of gain with implantation. Lamming found that responses in steers varied from 0 to 15% increase in gain per day in spring, about 20% in summer, 40% in autumn, i n each case on pasture and up to 60% under winter feeding conditions. He also used several levels of implantation, from which it appeared that the optimum level was about 45 mg. hexoestrol. Smith (1958) described trials conducted at eight farms in the North of Scotland in which 189 steers fattened solely on grass were implanted with hexoestrol. Implantation resulted in an extra daily live-weight gain of about 0·5 lb. Increases in dose levels above 60 mg. produced no significant response in terms of live-weight gain. Eighteen experiments at Experimental Husbandry Farms and the Norfolk Agricultural Station, described by Jones (1961), also showed that live-weight gain was increased by implanting; that the correct dose to give maximum response appeared to be 45 to 60 mg. hexoestrol; and that the implant should be made from 100 to 130 days before slaughter. Second implantations were made in several of these experiments and it appeared doubtful if this practice was desirable. In New Zealand, Lucas (1958) and Everitt (1959) also found that hexoestrol implantation increased weight gains of grazing steers.


1966 ◽  
Vol 66 (1) ◽  
pp. 1-14 ◽  
Author(s):  
G. C. Everitt ◽  
K. E. Jury

The influence of sex and gonadectomy on liveweight growth and its components was examined in a comparative slaughter experiment using Southdown – Romney cross lambs run under New Zealand pastoral feeding conditions.Twenty ram lambs were castrated and 20 ewe lambs spayed at docking, at approximately 4 weeks of age. Ten ram and 10 ewe lambs were killed at this age and 5 lambs from each of the four ‘sexes’ (entire and gonadectomized, male and female) were killed 4, 8,12 and 24 weeks after docking.Live-weight gain was higher for males than females and higher for entire than gonadectomized lambs, with some evidence of a greater depression in growth associated with castration than spaying. Effects on carcass weight followed those on live weight; weights for entire rams, wethers, entire and spayed ewes were 16.92, 14.72, 14.02 and 12.46 kg. respectively at approximately 7 months of age.


2004 ◽  
Vol 79 (2) ◽  
pp. 241-253 ◽  
Author(s):  
J. L. Amatya ◽  
S. Haldar ◽  
T. K. Ghosh

AbstractOne hundred 1-day-old Ven Cobb chicks were used to study the effect of supplementation with 0-2 mg chromium (Cr) per kg diet from potassium chromate (T1), chromium chloride (T2) and chromium-yeast complex (T3). The control group (C) received no supplemental chromium. Each experimental group consisted of five replicates of five birds each and the supplementation was continued for 35 days. The weekly live-weight gain, food conversion ratio and the live-weight gain: food intake ratio were unaffected by the treatments. Metabolizability of the organic nutrients increased in the Cr supplemented groups compared with the C group and significantly higher values were observed in the T3 group indicating beneficial effects of Cr-yeast complex. Intake of the trace elements (copper, zinc, iron and manganese) fulfilled the requirements specified for broiler chickens. Retention of all these trace elements was higher (P < 0-001 for Cu, Zn and Fe, P <0-01 for Mn) in all the Cr supplemented groups compared with that in the C group. Furthermore, in the T3 group the retention of copper, zinc, iron and manganese was higher (P < 0001) than that in the T1 and T2 groups. Two birds were slaughtered from each replicate at the end of 21 and 35 days of feeding to observe Cr in the liver; this was higher (P < 0-01) after 35 days feeding only. Despite supplementation, liver Cr was lower (P < 0-01) in T1 T2 and T3 groups. Cr concentration in the plasma was higher (P < 0-05) in the T3 and T3 groups than that in the C group although its concentration did not change with the age of the birds. Higher (P < 0-01) plasma concentrations of copper were observed in the T1 T2 and T3 groups titan those in the C group. The differences between the Cr supplemented groups in this respect were not significant, however. Liver copper was higher (P < 0-001) in C while liver iron was the lowest (P < 0-05) in that group. The concentrations of copper, iron (P < 0-01) and zinc in the liver (P < 0-05) were higher after 35 than after 21 days while those of manganese were not affected by slaughter age. Protein accretion in the meat tended to be increased in the Cr supplemented groups while deposition of fat in the meat was lower but these differences were not significant (P > 0-05). Other meat quality parameters including sensory evaluation scores improved due to Cr supplementation and Cr-yeast complex was found to have exerted significantly greater effects on these parameters. It was concluded that the supplementation of 0-2mg Cr per kg food dry matter would improve the performance of broiler chickens in terms of metabolizability of organic nutrients, retention of trace elements and meat quality.


1963 ◽  
Vol 61 (2) ◽  
pp. 243-251 ◽  
Author(s):  
F. W. H. Elsley

1. Twenty blocks of four litter-mates were individually fed under standard conditions from 56 days of age to 200 lb. Each block consisted of three early-weaned pigs reared to 50, 40 and 30 lb. live weight, respectively, at 56 days of age and a suckled pig reared to 50 lb. live weight at 56 days of age.2. There was no difference in the growth rate and feed conversion from 56 days of age to 200 lb. of the early-weaned and suckled pigs reared to 50 lb. at 56 days of age.The age at 200 lb. of the 30, 40 and 50 lb. early-weaned pigs were 169·8, 176·8 and 182·7 days and the lb. of meal per lb. live-weight gain 3·3, 3·2 and 3·1 lb., respectively. A reduction in 56-day weight led to an increase in growth rate and feed conversion from 50 to 200 lb. live weight.3. The conformation and composition of the bacon carcasses of the 50 lb. early-weaned pigs were not significantly different from the carcasses of the suckled pigs which also weighed 50 lb. at 56 days of age.An extensive examination of the carcasses of early-weaned pigs showed that an increase in 56-day weight from 30 to 50 lb. live weight signifieantly reduced the weight of muscle present and significantly increased the amount of subcutaneous fat. The conformation of the carcasses was not affected.


Author(s):  
N. M. Kostomakhin ◽  
S. L. Safronov

Due to the intensifi cation of the cattle breeding industry, there is a need to fi nd ways and available methods to increase production and improve the quality of beef based on the use of existing breeding stock of dairy cattle. The success of industrial crossbreeding depends primarily on the correct selection of breeds and their compatibility. The purpose of the research was to study the growth and development of purebred young cattle of Black-and-White breed and crossbreeds with Hereford breed in the Leningrad region. Research and production experiment has been carried out in the training and research farm “Pushkinskoe” of the St. Petersburg State Agrarian University. In the control group purebred animals of Black-and-White breed (9 heads steers and 7 heads heifers), in the experimental group half-blood animals (9 heads steers and 7 heads heifers) have been selected obtained as a result of crossbreeding Black-and-White cows and Hereford sires. The researches have been conducted from birth to 18 months of age. Researches have shown that the crossbreed young animals in comparison with purebreds were distinguished by expressed meat type of physique, a squat body with a welldeveloped back, a fairly wide and deep chest and a strong bone structure. Crossbred animals have been characterized by increased growth intensity. Steers and heifers outperformed their Black-and-White herdmates in terms of daily live weight gain overall over the study period by 170,6 g or 18,8 % , and 130,2 g or 15,6 %, respectively (P ≤ 0,01–0,001). According to the research results, it is recommended that to increase the volume of beef production and more fully realize the productive potential of cattle in the Leningrad region, it is necessary to conduct industrial crossbreeding of holstinized Black-and-White cattle with Hereford cattle. The resulting crossbreed young animals should be raised and fattened up to 16 months of age when steers reach a live weight of 540 kg and feed expenditures per 1 kg of live weight gain of 6,4 EFU, and heifers more than 480 kg and 6,9 EFU, respectively.


2017 ◽  
Vol 19 (74) ◽  
pp. 91-94
Author(s):  
O. I. Yulevich ◽  
A. V. Lihach ◽  
Yu. F. Dehtyar

The influence of probiotic «Monosporin» on the growth performance of piglets using feed rations  varying degrees of balance. Is defined nutrients of basic ratio which is used at the farm, and normalized by the inclusion of corn bran and premix «Tekro». It is shown that the use of the basic diet with probiotic live weight of piglets increased by 1.3% and the average daily weight gain of animals – by 1.7–2.3% over the control. By using normalized diet with probiotic preparations value of body weight and daily weight gain of young pigs increased by 13.2–18.7% and 19.4–39.2% respectively. Comparison of productivity indices of piglets who consumed diets normalized without probiotics and with probiotic, indicates a an increase of 3.0–6.5% and 7.5–11.7% in favor of the latter. Along with the increase of animal growth performance using normalized diets with probiotic preparation «Monosporin» costs of fodder units per 1 kg of gain is reduced by 25.3%. The results indicate that the effect of the use of probiotics is associated with the fact that increases the digestibility of feed, improving their digestibility, it activates the body's metabolism, stimulates the synthesis of amino acids, vitamins, enzymes and antibiotic substances that suppress pathogens and increase the overall resistance of the animal organism to viral diseases and various adverse (stressful) factors. In assessing the cost efficiency of using normalized ration with the addition of premix TM «Tekro» and probiotic «Monosporin» shows that in complex their application the best result is observed: the level of profitability of 47.7%, and the profit from the sale of 1 head – 185.09 UAH. While the profitability of pork production of using probiotic  together with the basic feed ration is 7,8%.


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