RU2457690C1 - Method for enhancement of lactation performance of lactating cows after expiry of milking process in housing season - Google Patents

Abstract

FIELD: food industry.

SUBSTANCE: invention is related to farming industry, in particular, to cattle-breeding. The method involves feeding a fodder with standard content of nutritional substances to lactating cows. Additionally to standard feeding, lactating cows are fed every day with "Iodocasein" biologically active additive in the form of a water solution with concentration equal to 4 mg % in an amount of 100 ml of the said solution per 100 kg of animal live weight.

EFFECT: method allows to enhance lactation performance of lactating cows after expiry of milking process in the housing season.

3 tbl, 1 ex

Description

The invention relates to agriculture, namely to livestock.

Given the decline in milk production and consumption, leading to a deficiency of proteins and other substances necessary for the human body, there is a need to find a solution to the problem of food security in order to provide the population with dairy products and increase the economic efficiency of the functioning of agricultural enterprises.

There is a method of increasing milk productivity of lactating cows after the end of the process of crushing in the stall period due to normalized feeding with a scientifically based diet (a set of feeds for the intake of necessary nutrients in the animal body), consisting of benign fodder readily eaten by cows: good hay, artificial grass cutting drying, spring straw, silage, haylage, fodder and sugar beets, potatoes, animal feed or a mixture of grain concentrates. Animals should be provided with salt and mineral fertilizing (prototype - V.K. Menkin. Feeding animals. - 2nd edition revised and supplemented. - M .: KolosS, 2003. - p. 188). As a rule, the end of the crushing process, which lasts 2-3 months after calving (p. 185), coincides with the onset of pregnancy and a decrease in milk yield (p. 188). The rate of decline is considered to be 8-10%, but by normalized feeding of animals, the decrease in monthly milk yield can be reduced to 3-4%.

The disadvantage of the prototype is a significant decrease (up to 3-4%) of milk productivity of lactating cows after the end of the process of crushing in the stall period.

The technical task is to increase the milk productivity of lactating cows after the end of the process of crushing in the stall period.

The technical problem is achieved by a method of increasing the milk productivity of lactating cows after the end of the process of feeding in the stall period, including feeding animals with a normative content of nutrients, in which according to the invention, in addition to normative feeding, a dietary supplement “Yodkasein” is given daily in the form of its aqueous solution with a concentration of 4 mg% based on 100 ml of this solution per 100 kg of live weight of the animal.

The difference between the proposed method and the prototype is that lactating cows after the end of the crushing process in the stall period, in addition to the normative feeding, are given daily supplements “Yodkasein” in the form of its aqueous solution with a concentration of 4 mg% based on 100 ml of this solution per 100 kg of live weight of the animal .

The method is as follows. At the end of the crushing process, which lasts 2-3 months after calving, namely starting from the 3-4th month after calving, lactating cows are given food with the normative content of nutrients. Feeding rates depend on live weight of lactating cows and average daily milk yield. In particular, coarse feed (hay, straw), succulent feed (haylage, silage, root tubers, beet pulp), concentrated feed (legumes and cereal grains), compound feed, and mineral feed may be included in the diet. Moreover, every day, starting from the 3-4th month after calving during the entire stall period, the animals are given an additional dietary supplement “Yodkasein” in the form of its aqueous solution with a concentration of 4 mg%. The solution of dietary supplement "Iodcasein" is prepared according to the manufacturer's instructions. The amount of an aqueous solution with the specified concentration of dietary supplement is given to the animals based on the calculation: 100 ml of this solution for every 100 kg of live weight.

An example of a specific implementation.

The experiments were conducted on the basis of LLC "Grove" Bazarno-Karabulaksky district of the Saratov region.

Example. For the experiment, 25 first-calf heifers were selected, identical in terms of calving, age, weight, size of milk productivity, breed, having formed 5 groups of them - 5 animals each. All groups contained in the diet with a normative content of nutrients, including coarse, succulent, concentrated feeds, and starting from the 3rd month after calving (after the end of the crushing process), they gave a daily solution of dietary supplement “Iodcasein” of various concentrations in the amount of 500 ml according to the living weight of cows (table 1). Accounting for the milk productivity of cows of all groups was carried out for 3 months (third, fourth, fifth months of lactation).

Table 1. Indicators of milk productivity of cows, depending on the concentration of dietary supplement "Iodcasein" Group Concentration of dietary supplement "Yodkasein" The average daily milk productivity in the period after the process of crushing, kg per 1 head 3rd month of lactation 4th month of lactation 5th month of lactation 1 group 1 mg% 13.0 12.6 12.1 2 group 2 mg% 13.8 13.0 12.5 3 group 3 mg% 13.6 13.1 12.7 4 group 4 mg% 13.5 13,2 13.0 5 group 5 mg% 13,4 13.1 12.8

As can be seen from the table, with a concentration of dietary supplement "Iodcasein" 4 mg%, the highest indicator of the number of milkings is observed. A solution of dietary supplement "Iodcasein" with a concentration higher than 4 mg% does not lead to a further increase in milk yield (increase in milk productivity).

Table 2 shows comparative indicators of milk productivity of lactating cows according to the prototype and the proposed method. To obtain these indicators, 20 first-calf heifers were selected in September, identical in calving time (second half of August), by age, by weight, and by milk production (Holstein breed). Two groups were formed from them - 10 animals each. Both groups contained in the diet with a normative content of nutrients, including coarse, juicy, concentrated feed. The second group, starting in November (after the end of the crushing process), was given a daily solution of Iodkasein dietary supplement with a concentration of 4 mg% in an amount of 500 ml (according to live weight of cows). Accounting for milk productivity of both groups (table 2) was carried out for 7 months of lactation of cows:

- during the crushing process (September-October);

- after the end of the crushing process (during the entire stall period from November to March).

Table 2. Indicators of average daily milk productivity of lactating cows by the proposed method and in comparison with the prototype (on average 1 head) Period No. Dairy Productivity Month 1 group 2 group milk yield, kg % to the previous one. month milk yield, kg % to the previous one. month crushing one September 12.6 12.8 2 October 14.3 113.5 14.2 110.9 after the end of the crushing process 3 November 13.8 96.5 13.9 97.9 four December 13.0 94.2 13.6 97.8 5 January 12.3 94.6 13,4 98.5 6 February 11.9 96.7 13.3 99.3 7 March 10.5 88.2 13.0 97.7

As can be seen from the table, the decrease in milk production in the first group in each subsequent month compared with the previous one from November to March was from 3.3% to 11.8%; the decrease in milk yields in the second group in each subsequent month compared with the previous one from November to March was from 0.7 to 2.3%. Thus, when applying the method according to the invention, the decrease in milk productivity after the end of the crushing process in the stall period was reduced in comparison with the prototype (3-4%) to 2.3%.

In addition, when applying the method according to the invention, the fat content in milk increased (table 3).

Table 3. The fat content in the milk of lactating cows obtained by the prototype and the proposed method Groups The average fat content,% Crush period The period after the end of the crushing process September October November December January February March one 3.91 3.94 3.82 3.98 3.87 3.63 3.69 2 3.62 3.82 3.64 4.12 4.21 3.96 4.02

Claims (1)

A method of increasing the milk productivity of lactating cows after the end of the process of crushing in the stall period, including feeding cows with a normative content of nutrients, characterized in that, in addition to normative feeding, cows are given daily dietary supplement “Iodcasein” in the form of its aqueous solution with a concentration of 4 mg% from calculating 100 ml of this solution per 100 kg of live weight of cows.