RU2140167C1 - Poultry productivity increasing method - Google Patents

Abstract

FIELD: poultry farming, in particular, broiler chicken feeding method. SUBSTANCE: method involves feeding broiler chickens with mixed feed combined with ferment preparation for two weeks during growing period; evaluating positive aftereffect of ferment preparation on liveweight gain of chickens of from six week to nine week age. Short-term feeding of poultry with ferment preparation as compared to feeding during the whole growing period reduces cost price of product. EFFECT: increased efficiency, reduced cost and improved quality of product. 3 tbl

Description

 The invention relates to the agricultural industry and can be used in the feeding of poultry, in particular broilers.

 A known method of feeding broiler chickens by introducing enzymes into the main diet throughout the growing period [1]. This method is based on the direct action of enzyme preparations on the body of growing young animals through increased digestibility of the feed.

 However, significant costs of expensive enzyme preparations, they are fed daily or with a short break, are far from always covered by the gain in live weight of chickens.

 In addition, long-term feeding of individual enzyme preparations to growing young growth can reduce their productivity due to metabolic disturbances.

 The essence of the invention lies in the fact that the increase in broiler productivity is achieved not due to the direct, but due to the residual effect of the enzyme preparation Celloviridin 2000, manifested in the period after the exclusion of the latter from the diet.

 The method consists in the short-term, within two weeks for a 9-week period of broiler growing, inclusion of Celloviridin 2000 in the diet.

 The enzyme preparation Celloviridin 2000 has cellulolytic activity and contains beta-glucanase, cellobiase and xylanase [2]. It is introduced into the compound feed at the rate of 30 units / kg of feed or 15 g / ton of final feed [3].

 Our series of experiments showed that a short-term, within 2 weeks, inclusion of Celloviridine 2000 in broiler feed leads to an increase in their growth intensity for a period of 4-5 weeks from the moment the drug is excluded.

 So, in the first experiment, performed on 60 males of the Smena broiler cross, it was found that the chickens treated with the enzyme Celloviridin 2000 in the period from the 4th to the 5th week of life (1 experimental group), with the cessation of its feeding, were characterized by increased growth energy , and during the period from the 6th to the 9th week of life, they increased their live weight by 1208.7 g / goal. This 208.1 g / goal or 20.9% (P <0.001) exceeded the growth rate of their peers from the control group who did not receive the drug throughout the experiment, and exceeded the level of 55.2 g / goal (4.8%) growth recorded in the II experimental group, receiving "Celloviridin" throughout the experiment, from 5 to 9 weeks of life. The data of the first experiment are presented in table. 1.

 The positivity of the residual effect of Celloviridin 2000 was to reduce energy loss with heat production. So, according to the results of 1 experiment, the energy loss in the intermediate exchange in 1 experimental group for a period of 6-7 weeks was only 12.32 MJ / goal, or 38.19% of the total gross energy of the feed, while in the II experimental group, continuously receiving the preparation was 13.52 MJ / goal (41.26% VE), in the control 13.84 MJ / goal (44.43% VE).

 The results of studies on the study of energy balance are given in table. 2.

 Subsequently, from the 8th to the 9th week of life, the course of metabolic processes in the organism of experimental young animals did not undergo changes. As a result, in the period from the 6th to the 9th week, experimental young animals from the first experimental group transformed about 66.7% of the super-energy exchange energy into pure growth energy, and only 57.4 and 48.4% of their analogues from the second experimental and control groups respectively.

 In order to assess the duration of the residual period of Celloviridin 2000 according to a technique similar to the first experiment, a second experiment was conducted on 90 broilers of the Smena cross. With the difference that the enzyme preparation was included in the diet of chickens of the experimental group I from 3 to 4 weeks of life. In this case, the duration of the positive residual effect of Celloviridine was 5 weeks, during which the direct effect of this drug on broiler productivity was significantly lower than the residual.

 So, for the period after drug exclusion in the I experimental group from 5 to 9 weeks of age, the increase in live weight in the latter amounted to 1640.0 g / goal, exceeded the level of the II experimental group by 10.1% (P <0.05) . At the same time, the superiority of young experimental group I over control was 228.5 g / goal, or 13.9% (P <0.001).

 The data of the second experiment are given in table. 3.

 The residual effect of Celloviridin 2000 in duration is 5 weeks and throughout this period it favorably affects meat productivity, in particular, the slaughter yield, which in the experimental group I exceeded that in the control and II experimental groups by 10.25 (P <0 , 01) and 1.9%, respectively.

 The use of the residual action of Celloviridin 2000 allows for more full realization of the growth potential of broilers than the direct use of multi-enzyme compositions such as MEK-TsGAP (cellulose, beta-glucanase, xylase, protease activity), Avizim 1200 (beta-glucanase, xylase, protease activity). In particular, in parallel with I and II experiments, the direct and residual effects of these drugs were studied. It turned out that by the age of 9 weeks, the bird receiving the enzyme premixes was inferior to peers who briefly received Celloviridin 2000 by 3-5% by weight. At the same time, Avizim 1200 did not show any residual effect at all, with the exclusion of MEK-TsGAP from the diet after 2 weeks of feeding, negative changes in the metabolism of experimental young animals were established, expressed in an increase in the level of heat production by up to 15.7-20.7% , with a general decrease in growth intensity by 5.0-29.6% (P <0.05).

 From the foregoing, it can be concluded that the residual effect of the feed enzyme preparation Celloviridin 2000 in its positive effect is not characteristic of enzymes. The use of this drug according to the proposed scheme is a fundamentally new approach to the use of enzymes in poultry farming. This follows from the fact that feed enzymes are intended to increase digestibility of the feed, while the residual effect of Celloviridin 2000 did not extend to the efficiency of feed conversion in the gastrointestinal tract of the bird, it has a positive effect on the intermediate metabolism.

 The literature data on the positive effect on the growth rate of young cattle by periodically including pectofoetidin P10x in the diet with a period of one month are theoretically justified by the vibrational nature of the growth of the animal [4]. And this phenomenon can be observed when using any other biologically active substances [5]. In our case, we are talking only about the short-term delivery of the enzyme preparation, while the duration of the positive residual effect of Celloviridin 2000 extends for a period of 5 weeks and is 2.5 times longer than the duration of the preparation.

 In widespread practice, the use of the residual effect of Celloviridin 2000 will save 57-83% on the purchase of enzyme preparations, which are urgently needed to increase the digestibility of nutrients in diets with a high grain content of barley, oats and some other cereals.

 But the most promising in the residual effect of Celloviridin 2000 is the possibility of the formation of fundamentally new technologies for the use of exogenous enzymes - when by applying the residual effect of some preparations of this class to the direct effect of others, it is possible to significantly increase the efficiency of fodder use.

Sources of information
1. Petrukhin I.V. Feed and feed additives. Handbook -M., Agropromizdat, 1989, p. 333-337.

 2. Okolelova T.M. Feeding poultry. Ed. second, revised and supplemented, Sergiev Posad, 1996, 168 p.

 3. Lenkova T. Enzymatic preparations increase the nutritional value of plant foods (Poultry farming, N 5, 1982, p. 25).

 4. Ulitiko V.E., Lukitseva L.N., Pykhtina L.A., Productive action of pulp diets with constant and periodic enrichment of them with enzyme preparations (Abstract, report of the XIII Regional Scientific and Practical Conference of Young Scientists and Specialists) Orenburg , 1994, p. 246-247.

 5. Shikhiev Kh. G. Growth of young animals and egg productivity of hens at different intensities of cosmic rays and atmospheric pressure. Abstract of Cand. Diss., M., 1995, 18 pp.

Claims (1)

 A method of increasing the productivity of poultry, mainly broiler chickens, including adding an enzyme preparation to the feed, characterized in that increasing the productivity of the poultry is achieved by introducing into the diet of the enzyme celloviridine 2000 at a dose of 30 units / kg of feed in the period from 3 to 4 or from 4 to 5 week of life of chickens, the effective effect of the drug is evaluated by increasing the gain in live weight of the bird after giving it.

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