RU2600011C1 - Method for growing broiler chickens - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture, namely, to poultry industry, and is intended for increasing meat productivity of chickens and their preservation. For increasing meat productivity of broilers at the end of incubation repeated sampling of chickens from incubator is performed in the end of incubation period every 4 hours with early access to fodder and water during the first hour after sampling.

EFFECT: higher meat production of broilers.

1 cl, 7 tbl

Description

The invention relates to the field of agriculture, namely to poultry farming, and is intended to increase the meat productivity of broilers and their safety.

A device for feeding chickens is known (RU 2444186 IPC A01K 39/012). The invention provides a method and compartment for an incubator that provides chickens with access to feed during hatchery hatching without compromising hatchability or survival. According to the results of a small-scale test, the presence of a compartment with food and lighting leads to an increase in live weight of chickens immediately after hatching, which persists until sale.

The disadvantage of this device is that the chickens remain in the incubator until the sample and carry a loss of live weight under the influence of high temperature.

There is also known a method http://www.incubatory.ru/content/view/32/44/), which includes incubation of eggs, selection of chickens from the incubator and feeding. The first sampling from the incubator is carried out after the removal and drying of the fluff in 70-80% of the hatched chickens. The trays are removed alternately, starting from the top. The dried young growth is selected manually and placed in standard boxes. The eggshells are discarded, the remaining eggs with embryos and dried young growth are placed in trays and returned to the central part of the hatcher. Dried young animals cannot be kept in the incubator for a long time, as overexposure reduces the quality of hatching and often causes significant waste during the growing period. The second sample of young animals and cleaning of the incubator is carried out at the end of the withdrawal; eggs with dead embryos are collected in a special container and removed from the incubator.

The disadvantage of this method is that the chickens are in the incubator for a long period during which weight loss occurs.

The technical result is to increase the meat productivity of broilers and their safety.

The technical result is achieved by the fact that in the method of growing broiler chickens, including egg incubation, the chicks are selected from the incubator and fed according to the invention, the chickens are sampled repeatedly at the end of the incubation every 4 hours and are fed for the first hour after selection.

The novelty of the proposed proposal is justified by the fact that after applying multiple sampling and early access to feed and water, the live weight of broiler chickens increases.

For this scientific, technical and patent literature, no proposals were found that are similar to the claimed, which indicates the presence of an inventive step.

The inventive method of growing broiler chickens is efficient and it can be used to obtain highly productive broiler chickens in the region's farms (poultry farms), which confirms the existence of a criterion of industrial applicability.

An example of a specific implementation of the method of growing broiler chickens.

The experiments were carried out in the laboratory of the department of breeding farm animals and livestock technologies of the Kuban State Agrarian University in 2013-2014.

The object of the study was hatching eggs obtained from the parent herd of chickens of the cross "Ross 308", as well as chickens hatched from these eggs.

2 groups formed:

- Control - a single sample of chickens is produced when 85% of the young are hatched, followed by "stripping", the young age after hatching is 22 hours;

- Experienced - multiple sampling of young animals is made - every 4 hours; Chicks age 4 hours after hatching.

In each group, the chickens were weighed individually, the mass coefficient of the chickens was determined, as well as the weight loss in the hatcher.

To calculate the mass loss of young animals in the hatcher, the first 5 heads of chickens dried after hatching from the egg were selected (in the control and experimental groups). The chickens were weighed, and then were again planted in the incubator. At the end of the sample, young chickens were re-weighed in the experimental groups.

In the experimental group, the chickens got access to feed and water during the first hour after sampling from the incubator; the age of the chickens is 5 hours after hatching;

The chickens in the control group received access to feed and water after 8 hours at the end of the hatch (production version), the age of the chickens was 30 hours.

Young animals were grown up to 7 days of age, after which growth and development indicators were determined.

As a result of studying the quality of hatching eggs, the following data were obtained (Table 1).

In the study of the morphological characteristics of the eggs laid for incubation, we obtained indicators within the cross-country standard, while the variability was small (1.81-1.96%). When conducting experiments on eggs of breeds of meat chickens, we found that the mass of yolk in meat breeds of chickens is quite high and significantly exceeds the mass of yolk of egg breeds of hens.

Table 2 shows the results obtained on incubation of eggs. A large percentage of suffocates were revealed, in our opinion, this is due to the higher mass of cross-country eggs on which the experiment was performed.

The determination of live weight occurred at the time of selection of chickens from the incubator (table. 3).

The live weight of chickens with multiple sampling is higher, because with such a sampling system, the chickens are in the incubator for 4 hours, instead of 22 hours in a single sampling (production version) and have earlier access to feed and water.

The weight loss of chickens was also studied with different sampling methods (Table 4).

From table 4 we can conclude that the chickens, being in the incubator from the bite to the sample for 22 hours, lose a relatively large body weight - 5.52%, and with multiple sampling, the weight loss is 1.66%, the data obtained are reliable in the third threshold of probability.

After sampling, the chickens were fattened according to the research scheme.

From the data of table 5 it can be concluded that the chickens from the experimental group on the 7th day had a live weight higher by 9.24 grams than the chickens in the control group, while the coefficient of variation in both groups is low (0.73-3 , 72), which indicates the uniformity of young animals on this basis. In our opinion, this happened because in the experimental group the chickens had a higher mass when sampled from the incubator, as well as due to early access to feed and water.

Table 6 shows data on the growth rate and preservation of young animals for the entire growing period.

In the control and experimental groups, the complete safety of the young was achieved, differences were only observed in the average daily growths, the chickens of the experimental group had a more intensive growth rate, exceeding the control by 6.8% (1.04 g). We attribute this to the fact that chickens, being in the incubator for less time, had higher viability and, as a result, high productivity in the form of average daily growths.

The feed and water consumption of chickens for the entire growing period was also studied; 47 animals were included in each group.

The consumption of feed and water by the chickens of the control and experimental groups was within the normal range for this cross. There were no significant differences between the studied groups.

The results of the experiment showed that when conducting repeated sampling of chickens from the incubator every 4 hours and applying early access to feed and water during the first hour after sampling:

- leads to a decrease in weight loss in the experimental group of 0.82 g (1.66%), compared with the control of 2.72 g (5.52%);

- contributes to an increase in daily average growth (16.4 g);

- leads to an increase in live weight of chickens at 7 days of age.

Claims (1)

A method of growing broiler chickens, including egg incubation, selection of chickens from the incubator and feeding, characterized in that the chickens are sampled repeatedly at the end of the incubation every 4 hours and are fed for the first hour after selection.