RU2201221C2 - Method for preventing postnatal diseases and offspring safety in cows - Google Patents

Abstract

FIELD: veterinary science. SUBSTANCE: dry cows should be twice intramuscularly injected 40-50 d before calving and 1 mo after the first injection with 10 ml 0.5%- selenium solution (at 1 ml/40 kg body weight) at simultaneous introduction of the following ingredients into the diet, g/d: premix P52-1 25-30; chalk 75-80; sulfur 16- 20 and others. The method enables to increase body resistance in breeding cows, completely prevent postnatal complications and lethality in neonatal calves. EFFECT: improved prophylaxis. 3 tbl

Description

 The invention relates to veterinary medicine and can be used for the prevention of postpartum diseases in cows and the safety of offspring.

 It is known that the occurrence and development of pathological processes during childbirth and in the postpartum period is largely associated with metabolic disorders and diseases of pregnant cows in the dry period.

 Metabolic disorders during pregnancy adversely affect the fetal development of the fetus, contributes to the birth of a weak young, sick with dyspepsia in the first days of life.

 Therefore, the search for effective means of preventing postpartum diseases and the safety of young animals remains one of the urgent tasks of veterinary medicine.

 A known method for the prevention of impaired reproductive function in cows, including the use of selenium-containing drug DAFS-25 (diacetophenonyl selenide).

 The disadvantage is that when it is used orally at doses of 6 mg and 9 mg 60 days before calving in two groups, the placenta was delayed in 10.3% and 2.9% of cases, and endometritis in 19.6% and 11, 85% respectively. With intramuscular administration of DAFS in a total dose of 180 mg 30 and 15 days before the expected calving, a delay in placenta was detected in two groups in 13.0% and 9.5% of cases, and endometritis in 33.0% and 14.0%, respectively .

 The aim of the invention is to increase the effectiveness of the method for the prevention of postpartum diseases in cows and the safety of newborn calves.

 Scientific and industrial tests of biologically active agents for the prevention of postpartum diseases in cows and the safety of the offspring at the Minderlinskoye state farm, Sukhobuzim district, and Krasnoyarsk Territory were carried out.

 Clinically healthy cows at the 8th month of pregnancy were selected for scientific and production tests. 3 groups were formed: in the first - 74 heads, in the second - 25 goals, in the third - 25 goals.

 The animals of the first group were injected with a selenium-containing preparation — a 0.5% solution of selenite sodium at a dose of 10.0 ml at the rate of 1 ml per 40 kg of animal weight — 40–50 days before the expected calving. Repeated administration of the drug was carried out after a month.

 Also, the cows were daily given orally premix P 52-1 at the rate of 30 g per day, chalk - 80 g / day, sulfur - 16 g / day, "kayod" - 30-40 g / day.

 The second group of dry cows received only premix P 52-1, chalk. Sulfur and Kayod tablets in the same amount as the 1st group.

 Group 3 was the control, she did not receive the above drugs.

 The scheme of scientific and industrial experience is presented in table 1.

 Clinical examination of experimental animals was carried out daily and on the 2nd, 3rd, 4th, 5th, 12-13th days after calving, clinical obstetric studies.

 In this case, the general condition was taken into account, the course of childbirth, the postpartum period and the safety of the offspring born to one month old were observed.

 In experimental animals, cases of postpartum endometritis, retention of the placenta, etc. were recorded.

 Prior to the experiments and after completion, they sent blood to the Regional Veterinary Laboratory for the study of trace elements.

 The prophylactic efficacy of selenium and biologically active substances - vitamins, trace elements and chalk and sulfur additives in the diet was evaluated: by the number of non-sick cows and the safety of calves up to a month old.

 The effect of premix P 52-1 on the concentration of trace elements in the blood of cows is shown in table 2 (experiment 2).

 Table 2 shows that the iron concentration in the blood of animals of the experimental group is 25.05%, copper - 48.27%, manganese - 43.7%, cobalt - 50% higher than in the control.

 Introduction to the diet of cows premix 52-1 increases and normalizes the concentration of trace elements in the blood of animals.

 We present the results of the effectiveness of the drugs used in table 3 (experiment 1).

 From production tests it follows that subcutaneous administration of 0.5% sodium selenite, twice, 40-50 days before calving and a month after the first injection with simultaneous giving in the diet of biologically active substances - vitamins and trace elements completely prevented the occurrence of postpartum complications in cows (table 3).

 The normal course of childbirth and the postpartum period was noted.

 The preservation of calves in the first group up to a month of age was 100%.

 In the second group, where prevented nutritional cow infertility due to general or qualitative inferiority of the diet, after the department, endometritis was recorded in the 1st cow and clinically expressed mastitis in the 1st cow.

 The safety of calves up to one month of age from cows of the second group was 96%.

 In the third group, where treatment and prophylactic measures were not used, pathological births were noted, in three cows a retention of the placenta was recorded, in 4 - endometritis, in 5 - clinically pronounced mastitis.

 The preservation of calves up to one month of age in the group where preventive measures were not taken was low and amounted to 60%.

 Thus, a double injection of a 0.5% solution of sodium selenite (selenium) during the dry season with the simultaneous prevention of mineral and vitamin deficiency increases the resistance of the cow's body, completely prevents postpartum complications and contributes to 100% calf preservation. Drugs have a positive effect on metabolism, restoring it, contribute to reducing the number of postpartum diseases and the safety of the born offspring.

 Only the complex influence of selenite, premix P 52-1, chalk, sulfur, kayoda leads to the exclusion of cow diseases in the postpartum period and to obtain 100% yield of healthy calves, which was confirmed by scientific and industrial experience at the Minderlinskoye state farm, where they received 100% for the first time exit healthy calves.

 A method for the prevention of postpartum diseases in cows and the safety of offspring is recommended for implementation in production.

Claims (1)

A method for the prevention of postpartum diseases in cows and the safety of offspring, including the introduction of selenium preparations, is different in that dry cows are doubled: 40-50 days before calving and a month after the 1st injection, 10 ml of a 0.5% solution of selenium are intramuscularly (based on 1 ml per 40 kg of animal weight) with the simultaneous introduction of the following components into the diet, g / day:
Premix P 52-1 - 25 - 30
Chalk - 75 - 80
Sulfur - 16 - 20
Kayod - 0.3 - 0.4

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