RU2696079C1 - Method of improving feedstuff digestibility of feedstock laying hens - Google Patents

Abstract

FIELD: agriculture.SUBSTANCE: invention relates to agriculture, in particular to a method for improvement of feed substances nutrient digestibility and enhancement of egg yield of industrial layers laying hens. Method is characterized by that at age of 43–44 weeks to laying hens cattle effluent in dosage 0.30 mg per 1 head is introduced into basic ration.EFFECT: invention usage will allow to increase fodder digestibility and chickens productivity.1 cl, 5 tbl

Description

The invention relates to agriculture, in particular, to the feeding of farm birds.

A known method of obtaining a plant growth stimulator (RF patent 2213452 MKI 7AO1 No. 65/00., Publ. 10.10.2003 g).

There is a method of using local feed additives (waste from the processing of reindeer antlers and cattle effluent), which increases the egg production of laying hens, as well as the intensity of egg laying at the end of the productive period (A. Mogilnikova, S. Petrova Zh. Poultry farming, 2009 .).

There is a method of using the effluent of cattle on the productive and reproductive qualities of laying hens of the cross "Rodonit", which increases the intensity of egg production by 6.07% and egg production by 11.5% (Kobyakova E.N., Petrova S.A., Druzhenova V .P. Zh. Feeding of farm animals and fodder production, No. 10, 2011).

However, there is no evidence of the use of a feed additive (effluent) to improve the digestibility of feed nutrients.

The basis of the invention is the task of improving the digestibility of the nutrients of the feed of laying hens of an industrial herd by using a feed additive (effluent).

The technical result of the invention is to improve the digestibility of feed nutrients and increase the egg productivity of laying hens of an industrial herd.

Raw manure of cattle is an organic fertilizer valuable in composition and degree of assimilation of nutrients by plants. Methane effluent - fermented (sludge) substrate of cattle manure from a biogas plant. It contains almost all the vitamins and minerals included in the feed.

The technology for producing fertilizers consists in the fact that liquid wastes with a moisture content of at least 89% (manure, litter, plant wastes, etc.) are prepared in a collection of raw materials, then they are centrifuged to remove such impurities as fluff, feathers, bristles, and residues from them. roughage, straw and stabilization of the liquid fraction according to particle size distribution. The solid fraction is subjected to accelerated composting in the biofermenter and enters the packaging room for its further implementation. The liquid fraction after the centrifuge enters the anaerobic digestion in the digester, and then goes to the packaging room. Biogas released during fermentation accumulates in the gas tank and is subsequently used for personal and domestic needs.

Biogas technologies are based on complex natural processes of biological decomposition of manure or bird droppings and other organic substances in anaerobic bacteria, processes are accompanied by the mineralization of nitrogen-containing, phosphorus-containing and potassium-containing organic compounds to produce mineral forms of nitrogen, phosphorus and potassium, with the complete destruction of pathogenic (pathogenic) microflora, helminth eggs, weed seeds, specific fecal odors, nitrates and nitrites.

In order to study the effect of the feed additive (effluent) on the digestibility of the nutrients of the diet, physiological experiments are carried out on 36 laying hens in three groups: control, 1 experimental (effluent - 0.30 mg per 1 goal) and 2 experimental (probiotic “Nord - Bact ”- 1 ml per 1 goal.).

Duration of experience: preparatory period - 10 days, accounting - 3 days. Sampling of feed and their residues for analysis is carried out according to the generally accepted methodology daily. Samples are weighed and dried in ovens. Take into account the consumption of feed (and water), the amount of litter and eggs laid. The bird is weighed before and after the experiment. Analysis of feed, litter and eggs is carried out by conventional methods.

To maintain life and production of products, the bird must receive a sufficient amount of energy and the necessary complex of nutrients. The composition of the feed was developed taking into account the physiological state of the bird, economic use, also depends on the needs of the bird in nutrients and the chemical composition of the feed (table 1).

Table 1 - Recipe full feed No. PC-1-1

Composition In the recipe Wheat 65.00% Meal sunflower joint venture of 40%, SK 18% 11.45% Meal soybean joint venture 50% 8.50% Limestone 4.80% Shell flour 4.60% Defluorinated Phosphate 1.45% Fish flour joint venture 63% 1.40% Sunflower oil 1.12% Common salt 0.18% DL - methionine 98.5% 0.15% Lysine monochlorohydrate 98% 0.14% Baking soda (sodium bicarbonate) 0.10% Sal carb 0.10% Endox 0.01% Roxazim G2 80 g / t P1-2 young industrial poultry older than 9 weeks 1.00%

The study of the chemical composition of the feed meets the requirements of the GOST on nutrition and quality and shows that in addition to the main nutrients, it contains 12 trace elements (iron, iodine, cadmium, cobalt, magnesium, copper, selenium, lead, mercury, fluorine, zinc, manganese) and 12 vitamins (tocopherol, ascorbic acid, pyridoxine, biotin, nicotinic acid, pantothenic acid, riboflavin, thiamine, folic acid, choline).

Table 2 & The chemical composition of the effluent

Indicators Units rev. Effluent Protein % 18.4 ± 1.59 Fat % 3.14 ± 0.12 Cellulose % 26.23 ± 1.05 Macronutrients: g / kg Calcium 1.97 ± 0.03 Phosphorus 0.32 ± 0.003 Magnesium 19.97 ± 0.27 Trace elements: mg / kg Iron 0.3 ± 0.08 Iodine 0.09 ± 0.03 Manganese 19.97 ± 0.98 Copper 5.64 ± 0.24 Selenium 0.61 ± 0.14 Zinc 8.52 ± 2.16

The obtained data on the chemical composition of the effluent indicate that in addition to the main nutrients it contains 6 trace elements (iron, iodine, manganese, copper, selenium, zinc). The feed additive (effluent) is characterized by a wide variety of nutrients necessary for balancing diets not only for protein, but also for minerals.

Digestibility of feeds is carried out due to the hydrolytic breakdown of nutrients included in it under the influence of enzymes of the digestive juices, enzymes secreted by microorganisms and contained in the feed itself.

The introduction of a feed additive (effluent) in the diet of laying hens has a positive effect on the digestibility of the nutrients of the feed. The digestibility ratios of nutrients are presented in table 3.

Table 3 - the digestibility Ratios of nutrients of feed,%

Indicator Group Control 1 experienced
(effluent) 2 experienced
(probiotic "Nord-Bact") Dry matter 65.8 68.8 68.3 Organic matter 65,4 70.5 70.1 Crude protein 64.0 67.1 65.6 Crude fat 80.0 82.7 82.1 Crude fiber 21.1 23.5 23,4 Bev 72.3 73,2 72.5

For the use of dry matter, the advantage remains for the first experimental group, where the effluent was included in the feed composition. So, in the first experimental group, the degree of assimilation of dry matter was 68.8%, in the control group the indicator decreased by 3.0%, in the second experimental group by 0.5%.

The highest assimilation of protein is observed in the I experimental group of 67.1% and was 3.1% more than in the control and 1.5% more than in the II experimental group.

The total digestibility of BEVs is quite high in all groups and amounted to 72.3, respectively; 72.5 and 73.2%.

When organizing good nutrition, one should take into account the presence of a complex relationship of mineral substances with each other, with nutrients and biological substances.

A living organism can satisfy the need for minerals due to proper rational nutrition. Only if the feed contains the necessary minerals and the optimal ratio between them, the body remains completely healthy, and therefore the products obtained from laying hens will be of high quality.

Table 4 - Absorption and balance of calcium and phosphorus in laying hens

Indicator Group Control 1 experienced
(effluent) 2 experienced
(probiotic "Nord-Bact") Calcium balance Taken with food, g 26,4 27,2 26,4 Highlighted with litter, g 11.81 11.47 11.82 Assimilated g 14.59 15.73 14.58 Assimilation rate,% 55.2 57.8 55.2 Phosphorus balance Taken with food, g 31.1 33.5 31.1 Highlighted with litter, g 17.1 16.6 17.8 Assimilated g 14.0 16.9 13.3 Assimilation rate,% 45.0 50,4 42.7

Calcium utilization was positive in all groups. The indicator of calcium absorption in the first experimental group of laying hens was 2.6% higher than in the control and in the second experimental group. The same pattern is observed in the assimilation of phosphorus. The digestibility coefficient for laying hens of the experimental group I was 50.4% versus 45.0% in the control and 42.7% in the experimental group II.

Consequently, calcium and phosphorus were deposited in the body of the bird in quantities necessary for the formation of egg productivity.

The inclusion in the rations of laying hens of an industrial herd of effluent contributed to the growth of egg production, the intensity of which was the highest in the I experimental group by 7.1% than in the control and 5.5% in the II experimental group. There is an increase in egg production by 7.5 and 5.8%, respectively. Subsequently, they determined their high productivity and confirms the positive biological response of laying hens to the inclusion of a feed additive (effluent) (table 5).

The safety of the birds in all groups was the same, this clearly shows that the birds had better survival. Therefore, the use of effluent in feeding laying hens in the amount of 0.30 g increased the productivity of the bird, its safety without negative impact.

Table 5 - Productivity indicators of laying hens

Indicator Group Control 1 experienced
(effluent) 2 experienced
(probiotic "Nord-Bact") Number of goals 12 12 12 Preservation,% 100 100 100 The average live weight of chickens, kg 1.91 1.97 1.96 Egg laying per average layer,% 78.3 85.8 80.0 Gross production of eggs, pcs. 1719.5 1884.2 1756.8 The intensity of egg production,% 72.1 79.2 73.7 Feed consumption per 1 goal., G 115 115 115 Water consumption per 1 goal, ml 200 200 200 Fodder (183) 2196.0 2196.0 2196.0

The safety of the birds in all groups was the same, this clearly shows that the birds had better survival. Therefore, the use of effluent in feeding laying hens in the amount of 0.30 g increased the productivity of the bird, its safety without negative impact.

Over time, productivity decreases and in order to extend the egg production period, for the first time in Yakutia, a feeding additive (effluent) was introduced into the diet of laying hens at the age of 43-44 weeks, which improved the digestibility of nutrients in the diets.

Thus, the introduction into the diet of laying hens of an industrial herd of a feed additive (effluent) improves the digestibility of feed nutrients and increases the egg productivity of a bird.

Claims (1)

A method of improving the digestibility of feed nutrients and increasing the egg productivity of laying hens of an industrial herd, characterized in that at the age of 43-44 weeks, laying hens are introduced into the main diet an effluent of cattle in a dose of 0.30 mg per 1 head.