RU2404578C1 - Method of selecting female rabbits for formation of broodstock and breeding - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: invention relates to field of rabbit breeding. Method lies in the following: degree of nest-building instinct manifestation in female rabbit and state of newborn rabbits on day of birth are estimated in points. In order to form broodstock and for breeding selected are female rabbits with the highest quantity of obtained points.

EFFECT: early estimation of productivity of female rabbits favours their targeted selection during formation of broodstock and further selective work with them.

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Description

The invention is intended for use in the field of rabbit breeding, in particular for the selection of rabbits for the formation of broodstock and breeding. The invention relates to the field of agriculture, in particular to selection of rabbits, and can be used in amateur and industrial rabbit breeding, in the formation of broodstock of rabbits. The invention can be used in farms engaged in breeding rabbits, with content systems that provide for the adoption of bays in nesting boxes using bedding materials (hay, straw, sawdust).

A known method for the selection of rabbits (RU 2145163 C1, IPC A01K 67/02, dated 09/07/1998), based on the determination in the blood serum of indicators of the body's natural resistance (bactericidal activity, lysozyme activity, gamma globulin content).

However, this method of selection of rabbits involves the selection of rabbits with high viability and productivity using complex laboratory tests and is not acceptable for industrial production, as it requires a whole staff of veterinary specialists and leads to a higher cost of production.

A known method of selection of repair young pigs (RU 2226344 C2, IPC A01K 67/00, dated July 27, 2000), based on the additional selection of animals of 4 months of age tested for “human fear”, according to the results of which the animals are selected for the tribe.

However, this method is not acceptable in rabbit breeding, since rabbits are very shy animals and it makes no sense to conduct breeding of productive animals on this basis. When working with rabbits, you must strive to reduce direct contact with animals.

A known method for early prediction of egg productivity of chickens (RU 2152715 C1, IPC A01K 31/00, A01K 67/00, from 10.11.1998), based on the individual egg production of hens during the first 15 days of the breeding season before the first series, not less than of three eggs.

This method of early prediction of chicken egg production takes into account the biology of laying eggs, namely the rhythm of egg formation.

For a correct assessment of the rabbit's reproductive ability, information is needed on the quantity and quality of the young and born young rearing in each broom and in just one year, on the live weight of the litters grown for weaning, and on how uniformly the rabbit grows litters from the round to the round; quantity and quality of rabbits. Scientifically sound standards for these indicators have not yet been developed, therefore, when evaluating rabbits, different assessment methods were used (V. S. Sysoev, V. N. Alexandrov. Rabbit breeding. - M.: Agropromizdat, 1985, - 272 pp., Ill.) .

Rabbits vary significantly in their maternal qualities. Most of them carefully build a nest, crush the litter, lay rabbits, cover them with fluff, and a few days after giving birth they even arrange a ventilation hole in it.

But there are those who do not care about the cubs, do not cover them with fluff, crawl in different angles on the floor of the cage (A.A. Aliev, N.V. Zelenevsky, K.V. Laishev and others. Rabbit - St. Petersburg: " Agropromizdat ”, 2002, 448 pp. With ill.).

The purpose of the invention is the individual lifetime selection of rabbits for productivity.

The proposed method for the selection of rabbits for the formation of the broodstock and breeding is carried out as follows, the manifestation of the nest-building instinct in the rabbit and the litter status of the newborn rabbits are assessed on the day of birthing, while the rabbit is awarded basic points from 1 to 5 for the state of the nest and an additional score of "+" 1 for the uniformity of the litter.

The following assessment system is used.

Table 1 Socket Status Main score Extra point final grade There is no fluff, rabbits are naked, there is no litter or too little, the nest is not built, the nest is dirty. one one There is no fluff, the rabbits are naked, the litter is enough, the nest is not built, the nest is dirty. 2 2 The bottom of the nest is lined with down, the rabbits are not covered with down, there is enough bedding, the nest is built, the nest is clean. 3 3 The nest is lined with 1/2 (about 2 cm), the rabbits are covered with down, the bedding is enough, the nest is built, the nest is clean. four four 4 + 1 There is a lot of fluff, rabbits are covered with a big hat of fluff, there is enough litter, the nest is built like a bird, the nest is clean. 5 5 5 + 1 Rabbits are the same in size and body weight, have a healthy appearance, there are no stillborn and underdeveloped. +1

The highest possible score is 5 + 1.

Based on the final score, which consists of the main and additional points, a conclusion is drawn about the degree of manifestation of the rabbit's nest building instinct, the state of the litter of newborns, and they are divided into groups.

table 2 Direction of use of rabbits Final grade, points The manifestation of the nest-building instinct Group Culling one unsatisfactory D 2 Alignment 3 satisfactory FROM Main broodstock four good AT Breeding group 4 + 1 good B + Main broodstock 5 great BUT Breeding group 5 + 1 great A +

Based on the results obtained, rabbits were selected for the formation of broodstock belonging to the group with a good and excellent rating, and rabbits were selected with a good rating of “+” and excellent “+” for breeding.

Based on the results obtained, it is possible to assess the possibility of using rabbits as a “nurse” and to predict the safety of young animals in this litter.

The need to develop this method is caused by the following considerations. In animal breeding, there is always a need to evaluate parents according to the quality of their offspring. However, existing methods for assessing the reproductive ability of rabbits allow to evaluate the reproductive ability of rabbits completely after they are rejected or when they finish their productive period. Therefore, the earlier it is possible to evaluate the productivity of the rabbit, the more descendants of the desired genotypes can be selected.

The practical significance of the method of selection of rabbits for the formation of broodstock and breeding is that it can be used in breeding and breeding with any breed of rabbit in different keeping systems.

In addition, the method of selection of rabbits for the formation of broodstock and breeding is applicable for the assessment of both repair and main rabbits.

Claims (1)

The method of selection of rabbits for the formation of the broodstock and breeding, characterized in that the degree of manifestation of the nest-building instinct in the rabbit and the condition of the newborn rabbits on the day of scrolling are evaluated in points, and the rabbits with the highest number of points are selected for the formation of the brood stock and breeding.