RU2624219C1 - Method of improving sheep ration in conditions of far north - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: method involves adding a fodder additive from Serratula coronata to the animal feed. The fodder additive is represented by a dry mass of leaves of Serratula coronata with the content of 20% hydroxyecdysone of 0.7 wt %, which is added in the main ration to ewes during the lactation period once a day in an amount of 15 g/head.

EFFECT: use of the invention will increase the dairy productivity of sheep and to increase the weight gain of lambs.

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Description

The invention relates to agriculture, namely to livestock, and can be used to increase milk production of suckling sheep and increase the growth energy of lambs in the Far North.

A known method of improving the diets of sheep and feed additive [RU 2060682 C1, 05.27.1996], which provides for the introduction into the diet of lambs an effective amount of amino acids to improve the gain in live weight, growth and quality of hair. The disadvantage of this method is that the feed additive is mainly used in the diet of lambs just weaned from mother's milk.

Known feed additive for sheep [RU 2376863 C2, 04/27/2009], including methionine, "Bifidumbacterin", biologically active feed additive "Biobacton" and a herbal supplement from leaves and stevia stems. The use of a well-known feed additive provides an increase in meat and wool productivity. The disadvantage is the lack of data on the effect of feed additives on the milk production of sheep.

The closest is a method of increasing the weight gain of animals by adding a feed additive for farm animals to the diet [RU 2054267 C1, 02.20.1996], which is used as a crushed grass of crowned serpent collected during flowering, at a dose of 80 mg / kg. The feed supplement was used on calves for one month. The disadvantage is the lack of data on the content of active substances, which entails a high consumption of feed additives, and there is no data on the use of additives in the diets of other farm animals.

The technical result of the present invention is to improve the diet of sheep, in particular ewes, increase the milk production of sheep and increase the energy of growth of lambs.

The technical result is achieved by the fact that the ewes in the lactation period are added to their main diet daily 15 g / goal. the dry mass of the leaves of serpentia crowned with a content of 20-hydroxyecdysone 0.7 wt.%.

The method is as follows. To the ewes in the lactation period in the main diet, once a day, add 15 g / goal. the dry mass of the leaves of serpentia crowned with a content of 20-hydroxyecdysone 0.7 wt.%.

In the Far North, in comparison with more favorable natural and climatic zones, breeding of intensive breeds of farm animals requires hanging energy and financial costs for the correction of environmental conditions. One way to solve this problem may be to use natural or artificial additives, adaptogens in animal diets, which reduce the susceptibility of animals to stressful conditions.

Example

The research was carried out on a sheep farm KFH Kaneva L.A. Ust-Tsilemsky district of the Komi Republic. For the experiment, we selected two groups of 5 heads of suckling ewes with lambs of 13 goals each - experimental and control. Animals were taken only healthy, with good appetite, II-IV lambs with an average live weight of 50 kg, an average wool cut of 3.0 kg per year. The groups were formed on the principle of pair-analogues, while the main indicators of the similarity of the ewes were considered the breed, lambing date, number of lambs and their live weight, lamb count. The main diet of all animals was the same and its balance was monitored according to the recommended standards of VIZh (2003). The daily ration of lactating ewes consisted of 1.3 kg of grass and grass hay, 1.6 kg of hay, 0.3 feed, 0.1 kg of sunflower meal and 12 g of table salt. In addition, 15 g / goal was added to the main diet for the ewes of the experimental group once a day in a mixture with moistened compound feed. the dry weight of the leaves of the serpentine crowned with the content of 20-hydroxyecdysone 0.7 wt.% for two months (table 1).

The milk productivity of the sheep and the growth energy of the lambs was controlled by the increase in live weight of suckling lambs by weighing them at the end of each month. The results of the absolute increase in the mass of lambs of the experimental and control groups for two months are shown in table 2.

For two months of research, the lambs of the experimental sheep increased their live weight by 1.03 kg more than the control group, the weight gain was 15%, while for the second month in the experimental group the increase in the weight of the lambs left 25% more than in the control group. Consequently, a diet enriched with the leaves of Crowned Serpenta significantly stimulated an increase in milk production in ewes.

To assess protein metabolism in the ewes of the experimental and control groups, an analysis of blood serum was performed for the content of total protein, albumin, globulins, urea and the calculation of the albumin-globulin (A / G) coefficient. Blood sampling was carried out once at the end of the study from the jugular vein until morning feeding. Serum analysis for the content of the studied parameters was carried out by photometry using the appropriate reagent kits of VitalDiagnostics SPb. The research results are shown in table 3.

According to the data obtained, the concentration of total protein in sheep serum was at the lower boundary of the physiological norm, with fluctuations from 65.3 ± 0.35 g / l in the control group to 67.3 ± 0.64 g / l in the experimental group, but was significantly higher in ewes receiving a diet with leaves of crown-sickle. Differences between groups in albumin concentration also significantly differed in favor of the sheep of the experimental group - 24.22 ± 0.93 in the control and 30.96 ± 0.79 in the experiment. The intensity of the protein metabolism of animals is determined by the A / G coefficient. In our A / G studies, the coefficient of the ewes of the experimental group exceeded the control group by 44%, therefore, in the body of the ewes of the experimental group, protein biosynthesis was more intense than in animals from the control group.

Serum urea is the main end product of nitrogen metabolism, an indicator of the waste of the whole protein stock. And a significant decrease in the level of urea in the blood serum of ewes from the experimental group indicates a decrease in the catabolism of amino acids and their more intensive use in protein biosynthesis in tissues. [Elovikov S.B., Menkova A.A. Metabolism of nitrogenous substances in lactating cows when using new BVMD // Zootechny. - No. 1. - 2007 - S. 14-16]. In our study, the level of urea in the blood of ewes of the experimental group was 32% lower than in animals from the control group.

A way to improve the diet of sheep in the Far North by adding to the main diet of lactating ewes a dry mass of leaves of Crowned Serpentina daily in an amount of 15 g / head. with a content of 20-hydroxyecdysone 0.7 wt.% significantly increased the milk productivity of ewes and the growth energy of lambs by the end of the second month by an average of 25%. And also led to a change in metabolism, primarily increased protein metabolism. The content of total protein in blood serum increased by 3%, albumin - by 28%, while a decrease in urea level by 32%. Such changes are associated with increased protein biosynthesis and more intensive absorption of feed protein with a simultaneous decrease in amino acid catabolism.

Claims (1)

A method of improving the diet of sheep in the Far North, including adding to the animal feed a feed additive from crowned serpent, characterized in that the feed supplement is a dry mass of crowned serpent leaves with a content of 20-hydroxyecdysone 0.7 wt.%, While adding to the sheep lactation period in the main diet once a day in the amount of 15 g / goal.