The way to prevent technological stresses of young cattle

 

(57) Abstract:

Usage: agriculture namely livestock. The invention: the proposed method is that when different technological stress differentiated dose deblina. It is given to animals with food for 5-7 days before and after stress: weighing, vetebrate, change of phase feeding for 1 period of growth in a dose of 12 mg/kg, and in the formation of groups of animals, goudotii, driving from the premises of the first period of growth in areas II period at a dose of 18 mg/kg body weight; for 5-7 days before stress during transport, slaughter of young animals to the meat at a dose of 18 mg/kg body weight. 1 C.p. f-crystals, 10 PL.

The invention relates to agriculture, particularly livestock, and can be used to reduce losses of meat production and maintaining (improving) its qualitative characteristics of young cattle, due to technological stress factors when growing, fattening and implementation.

In recent years in our country and abroad in veterinary practice to prevent stressful situations that arise when growing, fattening and re the to for the prevention of stress in animals used drugs phenothiazine (chlorpromazine, chlorpromazine, renown, triftazin, reserpine, largactil and others) and the benzodiazepine series (phenazepam, diazepam, benzodiazepam, seduxen and others). Most often in practice using intramuscular or subcutaneous administration of animal tranquilizers chlorpromazine at the rate of 0.5-2.0 mg/kg BW [1] and phenazepam at a dose of 30 mg/kg [2] that allows to reduce the stress in animals, to reduce losses as a living and slaughter weight. However, despite the positive effect of an important problem arising from the use of tranquilizers and sedatives is the short duration of their action; difficulties in the introduction; education infiltrates; high cost and most importantly the accumulation of these substances or their decay products in the animal organism, that unsound health.

It should be noted that these drugs are increasingly found application in the prevention of transport stress. However, beef production take place and other stresses caused by technological operations that cannot be avoided (formation of groups of animals, weighing, vetebrate, castration, cardamome change phases of feeding, and so on).

Sushnost is in young cattle, namely, that when different technological operations differentiated doses of Dyudina, it is given with food for 5-7 days before and after stress: weighing, vetebrate, change of phase feeding for the first period of growth in a dose of 12 mg/kg, and in the formation of groups of animals, goudotii, the stretch in space II period, growing at a dose of 18 mg/kg for 5-7 days before transporting slaughter of young animals to the meat at a dose of 18 mg/kg body weight.

Exposition of the use of the drug was taken on the basis of the available data in the literature about 5-7 days duration of stress in animals after cessation of exposure to the stress factor [3]

Preparation doudin is a known antioxidant that is produced by the Institute of organic synthesis, Academy of Sciences of the Republic of Latvia.

In agriculture dologin used to stabilize food at harvest (grass meal and fish, feed, fats, etc.) [4] stabilization of unsaturated substances in animals in the direct feeding of antioxidants in their diets [5]

In the proposed designation, i.e., as a means of reducing the psychological stress caused by the different technology is at the regulator pressure is applied for the first time, that became possible after the establishment of its effective action on clinical and physiological parameters, behavioral reactions of animals, reducing the loss of body weight, further increase it and maintaining (improving) the quality characteristics of the meat.

Examples of specific performance.

Test Dyudina to identify their stress-protective activity when technological stresses of various power spent on the bulls Bestuzhev breed in an industrial complex sovkhoza them. the 60th anniversary of the USSR, the Republic of Bashkortostan.

Example 1.

To experience on the principle analogues was chosen 150 bulls 0,5 months of age and 25 bulls of 14.5 months of age Bestuzhev species, which constituted 35 groups of 5 animals each. The difference between groups was that the calves of the experimental groups to the basic ration was additionally fed the antioxidant diludid in doses: 6; 12; 18; 24 mg/kg body weight for 5-7 days before and after stress in the growing and fattening and within 5 to 7 days before transport of slaughter steers for meat.

The results of the experience allowed us to identify the stress factors on the strength of their impact on the organization the SS-factors.

The analysis of the experiment results are presented in table.1-8, showed that the resulting stress factors most adverse effects were characterized by such stresses as the formation of groups of animals, cardamome, the transport from the premises of the first period of growth in areas II period and transportation slaughter of young and less weighing, vetebrate change phases feeding the first growing period (exclusion from the diet of milk replacer). Thus, during the period of formation of groups of animals, loss of body weight in control calves was 2.4 kg (4,22% ), for naudotojo 2,8 (5,03%), driving 4,8 (3,37), transportation and 24.2 kg (5,65%). Loss of body weight during the weighing 1.8 kg (3,17%), for vetebrate 1,6 (2,50) and the phase change feeding 3.4 kg (3,29%).

The indicators characterizing the effect of different doses of Dyudina to reduce loss of live weight of bulls with all the technological stresses in kg are presented in table.1, specifically whenever the current stress factor in the table.2-8.

The use of Dyudina at doses of 6, 12, 18 and 24 mg/kg body weight in stress factors helped to reduce the loss of body weight: if naudotojo 0.6 kg(1,05% ), 1,0 (1,82), 1,4 (2,50) and 0.8 kg (1,04%); the formation of groups of bulls 0.6 kg(1,02%), 0,8 (1,35), 1,2 (2,06) and 0.6 kg (1.01 per cent); the stretch of 1.75), 0,6 (1,05) and 0.4 kg (0,68%); vetebrate 0.4 kg(0,62%), 1,0 (1,56), 0,6 (0,92) 0.4 kg (0,61%) and the change of the phase feeding in the first period, growing by 0.6 kg(0,57%), 1,2 (1,16), 0,9 (0,84) 0.4 kg (0,39%).

The use of Dyudina in stressful situations has had a positive impact on subsequent stress factor in the increase in live weight. The calves of the control group (not treated with diludid) yielded experienced one month after the formation of 2.8 kg(13,9%), 5,4 (26,7), 4,2 (20,8) and 2.4 kg (10.9%); weighing 2.8 kg(12,2%), 5,8 (25,2), 4,2 (18,3) and 2.4 kg (10.4 percent); vetebrate 2.8 kg(11,9%), 5,4 (22,9), 4,4 (18,6) and 2.4 kg (10.2 per cent); naudotojo 2.4 kg(12,5% ), 4,2 (21,9), 5,4 (28,1) and 2.8 kg (13.5 per cent); phase transitions feeding 2.8 to(13,5%), 7,8 (32,7), 4,2 (22,6) and 2.6 kg (9,6%); driving a 1.8 kg(9,1%), 3,2 (16,2), 4,8 (24,2) and 2.0 kg (10.1 per cent).

From the above data suggest that different doses of Dyudina had a positive, but a different impact on the reduction of losses in live weight from stress, and the subsequent increase in live weight of bulls.

The most optimal (tselesoobraznee) dose of Dyudina to such stresses as weighing, vetebrate and change feeding phase at the first cultivation period is to 12.0 mg/kg, and for such stresses, as formation, cardamome, the transport from the premises of the first period of growth in areas II period and transportation 18 privodim data for these indicators during one of the heavy stresses of baudotii.

Studies have shown that when stress resulting from goudotii, in animals, increased body temperature, pulse rate and respiration, as well as morphological changes and biochemical composition of blood, thereby characterizing the strain of the organism. So, one day after naudotojo in young control group, body temperature increased by 5.3% heart rate by 29.2 and respiratory rate of 22.8% In young experimental groups these changes in the direction of increasing indices were significantly less.

Animals in all studied groups after 7 days (8 days) after naudotojo tended to normalize physiological state. And in most cases, this related to young animals treated with diludid, and especially at a dose of 18 mg/kg (III experimental group), which most of the physiological parameters were in norm or approached it, although it has not reached the level prior to baudotii.

After naudotojo in the blood of bulls underwent changes that characterize the deterioration of the animals: the observed shift in the body of carbohydrate, protein, lipid and mineral exchanges, there was an increase of formed elements Kraay (dehydration) in the body. This was evidenced by the data and the content of sugar, lipid, protein, and hematocrit value. However, in the experimental steers all of these indicators were less pronounced. Thus, if the control calves hematocrit within a day after naudotojo increased by 6.8 mg% at OPETH only 3.7-0.9 mg% Concentration of hematocrit experienced young in this period was significantly lower than in control 4.2 mg% (9.91% in) P < 0,01, 4,8 (11,48) P < 0,01, 5,8 (14,36) P < 0.001 and 3.5 mg% (8,62%) P < 0,01. As a result of dehydration and enhance the breakdown of protein substances in the body when stress was observed increasing the concentration of protein in the serum. The calves of the control group at day 2 after naudotojo in serum protein content was higher by 8.4% (P < 0,001), including albumin 10,0% (P < 0.001) and globulins by 6.9% (P < 0,001), whereas the analogues I experimental group respectively at 3.28; 3,23 and 3.33% II 3,45; 3,33 and 7,114% III 1,61; 0,00 and 3.33% and IV experimental group 6,17; 3,23 and 7,14%

When a stressful condition (in the period after goudotii) there was an increase in consumption of energy expended by the body's reserves due to breakdown of liver glycogen and use sugar as substrate oxidation processes. It is established that the sugar content is 1) and in animals of group IV of 19.8 mg% (P < 0,001). Low sugar content was characterized by gobies experimental groups, in which the amount was less compared with the control, respectively 12.9 mg% (P < 0,01), while 14.8 (P < 0,01), and 18.3 (P < 0,01) and 12.2 mg% (P < 0,01). Experienced gobies were different and less lipids compared to control animals. So, the content of lipids in the blood of the latter was greater than that experienced respectively 16.7 mg% (P < 0,05), 21,1 (P < 0,01), 23,1 (P < 0.01) and 10.0 mg% (P < 0,05).

The data presented above it follows that in the experimental animals and especially group III protein, sugar, lipid and hematocrit value were increased to a lesser extent, indicating that the inhibition of oxidative processes in animals.

Similar changes morfomekhanicheskii indices of blood in the studied groups of animals took place, and other technological stress - weighting, the formation of groups of animals, their transport from the premises of the first period of growth in areas II period, methobromide, the change of the phase feeding, transportation. It was found that different doses of Dyudina although it made a noticeable and positive, but a different effect on clinical and physiological status of animals. From the study is that the period effects of other stress factors, clinical and physiological parameters in animals were recovered, according to our data, when using Dyudina within 5-7 days, and without it for a longer time, that could affect the future growth and development of young animals.

The test results of Dyudina when technological stress different force effects on animals (example 1) was the prerequisite for scientific and business experience, which examined the impact of the most effective doses of Dyudina to reduce loss of meat products when used for all technological stress breeding, fattening and implementation animals (example 2).

Example 2.

This experience was chosen 80 heads of bulls Bestuzhev breed with an average live weight of 53 kg, of which formed four groups of 20 animals each. The difference lay in the fact that the bulls I experienced addition, the group with the main diet for 5-7 days before and after such technological stress of the formation, vetebrate, weighing, cardamome, the change of the phase of feeding, the transport from the premises of the first period of growth in areas II period and within 5-7 days before transporting slaughter of young animals on Myasokombinat Resch, as weighing, vetebrate and change feeding phase was fed to diludid at a dose of 12 mg/mg, and in the formation, goudotii, the stretch from the premises of the first period of growth in areas II period and transportation at a dose of 18 mg/kg body weight.

Animals on all phases of growing and fattening were in the same conditions of feeding and maintenance.

For the whole period of experiment the actual feed intake of the control calves was 2293,1 food. units in young experimental groups respectively 2319,1; 2330,6 and 2414,4 food. units total nutritional value of feed consumed at last was 26.0; 46,5 and 121,3 food.ed. higher than in the control peers. Experienced bulls compared to controls consumed more than 2.6; of 7.5 and 15.0 kg of protein.

Different feed intake and nutrients in experimental animals due to the unequal impact of stress factors on their body during the growing and fattening that had a significant impact on the intensity of cultivation and the growth of experimental animals.

At the end of the experience (of 14.5 months). the control calves had a live weight 425,4 kg, whereas juveniles received during the period of stress factors diludid 440,7; 454,2 and 466,2 kg, higher than the control at the animal III experimental group. Young animals of groups I and II conceded to them 25.5 kg (P < 0.01) and 12.0 kg (P < 0,02).

During the growing and fattening young animals of the control group increased live weight 7.8 times, I experienced 8,3, II 8.4 and III experimental group was 8.8 times. Therefore, more intensive growth rate was characterized by gobies III experimental group treated with diludid in optimal doses for each of the stress.

The analysis of the experiment results are presented in table.9 shows that the use of Dyudina in optimal doses reduced loss of absolute growth in the first growing period, respectively, for groups of youngsters 3.6 kg (3,8%), and 5.8 (6,1) and 11.8 kg (12.3 per cent), and for the second period of 13.3 kg (4.8 per cent ), 23,8 (8,6) and 30.8 kg (11.2 percent). In General, the experience of using Dyudina helped to reduce the loss of the absolute gain in steers I experienced group of 16.8 kg (4,5%), II 29,6 (7,9) and in young III experimental group - by 42.6 kg (11.5 percent).

The use of Dyudina contributed to the reduction of losses in live weight of the animals and transporting them to the industrial sector for meat (table. 10).

When transporting the greatest loss of body weight were animals of the control group and 22.6 kg or 5,31% of the detachable body weight. Analogues of the experimental groups, they had the p young was characterized by gobies III experimental group, they were less than analogues of groups I and II respectively 2.4 kg (0,74%) P < 0.02 and 0.6 kg (0,22%) P < 0,05. The difference in the loss in body weight of honey gobies first and second experimental groups was 1.8 kg (0,52%) P < 0,05.

Thus, the use of Dyudina as anti-stress supplements before transporting slaughter steers reduces the loss of body weight 4.4-6.8 kg (1,18-1,92%).

The use of Dyudina when technological stress has a positive effect on meat animal productivity. At slaughter 14.5-month aged animals of the test groups received the carcass weight exceeding control respectively 12.5 kg (5.75 per cent) P < 0,05; 26,5 (12,20) P < 0.02 and 38.3 kg (17,63%) P < 0,01.

Young experimental groups outperformed the control by mass of flesh in carcass 11.6 kg (7,13%), 23,3 (14,33) and 35.6 kg (22,13%).

Feeding the calves of Dyudina as an anti-stress drug promotes the conversion of protein feed in the protein of meat, improvement (conservation of biological and nutritional value of meat, its technological qualities. The conversion of protein to increase by 0.2; 0.67 and 1,10% biological value 5,13; 10,26 and 12,82% food 10,08; 18,35 and 29,44% water-holding capacity of 1.01; 3,71 and 5.12% and decreases Naya stress reaction in steers during the growing period, fattening and implementation of economically feasible. It allows you to reduce 1 kg increase in feed consumption by 3,34-of 5.82% labor 4,56-11,34% cost 4.26 deaths RR (3,47%) - 8,08 rubles (6,80%) and to improve the profitability of beef production on 4,07-17,07%

Most high economic performance of growing and fattening of young determined using differentiated doses of Dyudina (III experimental group).

Therefore, the essence of the proposed method of prevention of technological stress during rearing, fattening and implementation of young cattle is the ability of Dyudina with differentiated its application to mitigate the negative effects of stress factors and to stabilize the metabolism, which ultimately results in the reduction of losses of meat production and preserving its quality.

Sources of information

1. Fomichev Y. P. of Levantin D. L. pre-Slaughter stress and quality of beef. M Rosselchozizdat, 1981, 166 S.

2. Babur M. A. Gurkalo S. J. Influence of a tranquilizer DB-98 (phenazepam) for the fattening of cattle on performance, meat quality and character of morphological changes in parenchymatous organs and the Development of preventive measures p is yserowanej farms. Odessa, 1985, S. 73-75.

3. Plamenco S. I. Sidorov Century So Kazakevich C. K. Aleshin, A. A. Smelov A. M. Locomotor and dietary behavioral responses replacements cattle/ animal Behavior in industrial complexes Proc. Of agricultural Sciences, M. Kolos, 1979. S. 112-121.

4. Dvinskaya L. M. Shubin A. A. the Use of antioxidants in animal husbandry. L. Agropromizdat, 1986, 160 S.

5. Akhmetzyanova F. K. Efficacy of antioxidants in the cultivation of repair lactation heifers and heifers/ the dissertation on competition of a scientific degree of candidate of agricultural Sciences. Saransk, 1990, 24 S.

1. The way to prevent technological stresses of young cattle, including the giving of pharmacological substances, characterized in that the prevention of technological stress factors is carried out during the whole technological cycle of production of beef weighing, methobromide, change of phase feeding for the first period of growth, the formation of groups, goudotii, the stretch from the premises of the first period of growth in space II of the cultivation period, transportation dacha differentiated doses of the drug for each stress factor.

 

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FIELD: animal science.

SUBSTANCE: the present innovation deals with dynamic loading onto cardio-vascular system in animals. Selection should be carried out by the following parameters: , ΔT3 and Δn, where ΔT1 - the time for pulse increase at running, ΔT2 - the time for pulse stabilization after running, ΔT3 - the time for pulse increase after running, Δn - the increase of pulse frequency after running. One should select animals into milking herd at the following values; ΔT3 ≤ 10 sec, Δn ≤ 10 beats/min. The method enables to present perspective evaluation of lactation capacity in animals.

EFFECT: higher efficiency of selection.

1 dwg, 1 ex, 1 tbl

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