RU2591521C9 - Method for increasing reproductive functions of fur animals and viability of offspring thereof - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: invention relates to farming and may be used, in particular, to increase productivity of fur animals. Biologically active fodder additive used is a protein hydrolysate from muscular tissue of minks or sables, which is administered to animals for 30 days before estrus, during estrus, females for 60 days during carrying of offspring and for 40-45 days in period of nutrition to jigging calves, protein hydrolysate additive from muscular tissue of minks is added basic diet of sables in a dose of 0.1-0.6 g per head per day of female and male breeding flock, while protein hydrolysate additive from muscular tissue of sables is added to basic diet in a dose of 0.1-0.6 g per head per day to female and male breeding flock.

EFFECT: reducing number of barren females, improving reproductive function of fur animals, increasing yield of viable calves.

1 cl, 2 tbl, 2 ex

Description

The invention relates to fur farming and can be used to increase the reproductive functions of fur animals and the viability of their offspring.

The use of hydrolysates from the muscle tissue of minks and sables to increase the reproductive functions of fur animals and the viability of their offspring can be one of the ways to solve the problem of the disposal of waste fur farming, which is advisable from an environmental point of view. In addition, the waste of fur farming can be a cheap raw material base for biotechnology.

The protein hydrolyzate from the muscle tissue of minks or sables has a high biological value due to the presence in its composition of a complete set of amino acids, including essential amino acids, it contains at least 7.0% of amine nitrogen, not more than 2.0% of ash.

A known method of stimulating the reproductive functions of animals by introducing into the feed mixture during the rut of the biological additives "Cormolan". With this method, the fertility of females increases by 0.2-0.3 puppies, however, reproductive functions improve slightly (1).

There is a method of stimulating the reproductive functions of female mink (2), which provides for the introduction of biologically active additives into the main diet, which include dibazole, acetylsalicylic acid, papaverine and trental, which are administered alternately according to a special scheme.

However, the introduction of synthetic drugs, dibazole, acetylsalicylic acid, papaverine and trental, into the feed of pregnant females can cause a side effect in the form of puppies with physiological abnormalities, low viability, and early departure (death) of puppies.

There is a method of directed influence on the reproductive function of fur-bearing animals (arctic foxes) by injection of expensive gravigormone in a dose of 150-250 units. per female, providing an increase in the number of puppies from 2 to 2.4 puppies per animal (3).

There is a method of hormonal effects on the reproductive function of sables by injection of gonodotropic hormones: gravigormone and choriogonin in order to induce ovulation in females (4). However, this method is labor-intensive in the conditions of the economy, because it requires the injection of the drug individually to each animal. In addition, this method eliminates the possibility of stimulating the sexual function of males, and hormonal drugs disrupt the sexual function of animals, which is especially dangerous for young females.

There is a method of increasing the reproduction of female nutria and the viability of their offspring, which involves introducing 3- (cyclohexinyl-3) heptomethyltrisiloxane at a dose of 3 mg / kg of animal mass into the main diet of pedigree female nutrients every other day in the second half of pregnancy (5). However, this substance is a chemical, and this adversely affects the genetic potential of the breeding herd and young animals.

There is also a method of stimulating the reproductive ability of female fur animals and the viability of their offspring by introducing 1- (chloromethyl) silotran or 1- (ethoxy) silotran into the feed, which involves the introduction of drugs into the feed by dissolving them in water and mixing the solution with the feed mass (6 ) However, these substances are practically insoluble in cold water, and gradually hydrolyze in hot water, which makes their practical use difficult.

There is a method of stimulating the reproductive functions of minks and ferrets, which involves introducing into the main diet a feed additive - the RIAL preparation, obtained by processing substandard animal raw materials (7), which is the closest analogue (prototype) to the claimed invention. The method provides for the introduction to the feed of the drug to minks at a dose of 50 mg per 1 kg of body weight (females and males) for 10 days during preparation for the race, during the rut and females during pregnancy and feeding puppies, young animals from jigging to slaughter, ferrets according to 10 days at a dose of 100 mg per 1 kg of body weight to males during preparation for the gon and rut, females and other age and gender groups from February 1 to June 1, sables for 10 days at a dose of 100 mg per 1 kg of body weight in preparation for the run and rut from January 1 to June 1.

The disadvantage of this method is the limited raw material base for the production of the drug "RIAL" in connection with a reduction in the number of farm animals and, as a result, a decrease in the number of slaughterhouses at meat processing plants, low preservation of raw materials and limited delivery times to the processing site, as well as instability and decrease activity of the drug during storage, as a result of which it does not show stable indicators of stimulation of the reproductive functions of fur animals in fertility and increased the rate of exit of a healthy livestock.

The problem to which the invention is directed, is to increase the reproductive functions of fur animals and the viability of their offspring.

The problem is solved through the use of biologically active feed additives for males and females in preparation for the gon and rut, as well as for females during the period of gestation and feeding of offspring. As a biologically active feed additive, a protein hydrolyzate from the muscle tissue of minks or sables is used. Protein hydrolyzate from muscle tissue of minks or sables is prepared according to the method described in Application for invention No. 2013116939, publ. 10.20.2014, Bull. No. 29 (8).

Protein hydrolyzate from mink muscle tissue is added to the main diet for feeding sables at 0.1-0.6 g per head per day to females and males of the breeding herd before the start of the rut and during the rut, and the female sables during gestation and during the period of feeding the offspring .

The protein hydrolyzate supplement from sable muscle tissue is introduced into the main diet for feeding minks of 0.1-0.6 g per day per day to females and males of the breeding herd before the start of the rut and during the rut, to the mink females during gestation and during the period of feeding the offspring .

The technical result provided by the given set of characters is to increase the reproductive functions of fur animals, reduce the number of missed females, increase the yield of puppies and increase their viability.

The protein hydrolyzate from the muscle tissue of minks or sables is a fine powder of light beige color with a faint specific smell. It has high biological value due to the presence in its composition of a complete set of amino acids, including essential amino acids, it contains not less than 7.0% of amine nitrogen, not more than 2.0% of ash.

The drug is administered at a dose of 0.1-0.6 g per head per day in the main diet, as part of a feed mixture, once a day, provided that the animals in the groups are balanced.

The invention is illustrated by the following examples.

Example 1. Of the mink females and males, six experimental and one control groups of animals were formed, similar in age, weight and puppy results. Animals of all groups during the experiment were kept on a balanced diet of animal husbandry. Males and females of 1-6 experimental groups within 30 days before the start of the rut, during the rut period, females of 1-6 experimental groups within 60 days during the gestation period and 40-45 days during the feeding period before calves were introduced into the main diet a hydrolyzate from sable muscle tissue at a dose of 0.1; 0.2; 0.3; 0.4; 0.5 and 0.6 g per head per day, respectively. The animals of the seventh group (control) hydrolyzate was not introduced into the feed. Puppies were recorded during culling from females. The results of the experiment are shown in table 1.

From the data of table 1 it follows that the introduction of sable at a dose of 0.4 g per head per day (the fourth experimental group) into the main diet for feeding mink hydrolyzate from sable muscle tissue (the fourth experimental group) made it possible to reduce the number of mink females missed by 1.3 times and to obtain the best yield of mink puppies on the main female (7.6 heads versus 6.7 heads in the control) and increase offspring viability (the safety of mink puppies for weaning 96.1% versus 93.8% in the control, the number of puppies with physiological deviations of 0.6% against 1, 6% in the control), therefore, this dose of the drug is opti small.

Example 2. From the females and males of sables, six experimental and one control groups of animals were formed, similar in age, weight and results of whelping. Animals of all groups during the experiment were kept on a balanced diet of animal husbandry. Female and male sables of 1-6 experimental groups within 30 days before the start of the rut, during the rut, females of 1-6 experimental groups within 60 days during the attachment of embryos to the placenta and 45-50 days during feeding until the pups were introduced were introduced into the main diet of feeding a hydrolyzate from mink muscle tissue in a dose of 0.1; 0.2; 0.3; 0.4; 0.5 and 0.6 g per head per day, respectively. The animals of the seventh group (control) hydrolyzate was not introduced into the feed. Puppies were recorded during culling from females. The results of the experiment are given in table. 2.

From the data in table 2 it follows that the introduction of 0.4 g per head per day (the fourth experimental group) into the main ration of feeding sables of a hydrolyzate from mink muscle tissue (the fourth experimental group) made it possible to reduce the number of females missed by 1.66 times and get the best puppy yield per female (2.9 heads versus 2.4 heads in the control) and increase litter viability (safety of puppies for weaning 88.9% versus 88.4% in the control, the number of puppies with physiological abnormalities 1.8% versus 4.2% in control), therefore, this dose of the drug is optimal.

As a result of the use of a biologically active feed additive, it is possible to reduce the number of missed female minks by 1.3 times, sable females by 1.47 and increase the yield of puppies per female in minks by 0.9 puppies and in sables by 0.5 puppies.

Information sources

1. J. "Rabbit breeding and animal husbandry", 1994, No. 6, P.10.

2. RF patent No. 20144785, A23K 1/175 of 10/15/1991.

3. "Biology and pathology of cellular fur animals." Abstracts of reports to the II All-Union Conference July 26-29, 1977, Kirov. - 1977. - S. 38-39.

4. "On the nature of sable ovulation and the possibility of stimulating it." “Biology, breeding and maintenance of cell sables”, Moscow. - 1980. - Volume 22. - S.18-21.

5. RF patent No. 2428007, A01K 67/02 from 07.20.2009.

6. RF patent No. 2206989, A01K 67/02, A61K 31/695 from 05/05/2001.

7. RF patent No. 2038800, A23K 1/00 dated 05/05/1993 (prototype).

8. Application for invention No. 2013116939, publ. 10.20.2014, Bull. No. 29.

Claims (1)

A method of increasing the reproductive functions of fur animals and the viability of their offspring, providing for the introduction of a biologically active feed additive in the main diet during preparation for the run, during the rut, for females during the gestation period and during the period of feeding the offspring, characterized in that it is a biologically active feed additives use a protein hydrolyzate from the muscle tissue of minks and / or sables, which are introduced into the main diet of males and females of the breeding herd at 0.1-0.6 g per head per day for e 30 days before the start of the rut, during the rut, for female minks for 60 days during the gestation period and 40-45 days for the period of feeding until the calves are laid, female sables for 60 days during the attachment of the embryos to the placenta and 45-50 days during feeding until the young are deposited.