FI90192C - Poultry feed, feeding method and method for improving the digestibility of poultry feed - Google Patents

Description

90192 i

POULTRY FEED, FEEDING METHOD AND METHOD FOR IMPROVING THE DIGESTIBILITY OF POULTRY FEED - FJADERFAFODER, UTFODRINGSFORFARANDE OCH FORFARANDE TILL FORBÅTTRING AV SMÅLTBARHET AV FJADERFAFER

5

The present invention relates to a poultry feed containing a lignocellulosic natural substance and an enzyme preparation. The invention further relates to a feeding method for improving the usefulness of poultry feed and a method for improving the digestibility of poultry feed.

At present, it is not desirable to use oat hulls or other lignosellulose-containing natural powders as a filler in poultry feed. 15 Too much fiber is known to be harmful in feed.

The use of lignocellulosic natural material as a feed material for poultry feed is limited by the poor nutritional value of these materials and indigestion due to indigestion. The feed value of oat hulls is only about 15 20% of the feed value of wheat flour and about 21% of the feed value of wheat bran (Finnish feed table, 1982). The indigestible fibers affect the transit time of the digestible feed mass advancing in the digestive tract. The flow rate of digestible feed mass in the digestive tract is known to contribute to the digestion and absorption of nutrients in the feed into the body. The indigestible fibers bind the nutrients and digestive aids secreted by the digestive tract, preventing the optimal utilization of the nutrients.

30 The above-mentioned disadvantages increase the feed needs of poultry and worsen, for example, egg production.

It has been possible to add up to 5 - 6% of the amount of feed containing lignocellulosic natural matter without the occurrence of digestive disorders.

It is an object of the present invention to obviate the above drawbacks. In particular, it is an object of the invention to provide a novel type of poultry feed containing lignocellulosic bile and having a higher nutritional value than feeds containing lignocellulosic bovine natural substance in general.

It is a further object of the invention to provide a feeding method which improves the usability of a feed containing lignocellulosic natural matter.

It is a further object of the invention to provide a method for improving the digestibility of poultry feed containing lignocellulosic natural material 10.

For aspects of the invention, reference is made to the claims.

An oat husk and / or barley husk according to the invention containing more than 15% by weight, preferably 15 to 30% by weight, of poultry feed containing the digestibility of lignocellulosic natural matter and a feed enzyme preparation known per se to improve the feed value and production effect . The enzyme preparation cleaves the lignocellulosic natural matter in the poultry body into indigestible components, such as indigestible fibers, into a digestible form. In this case, the nutritional value of the feed increases and it avoids harmful digestive disorders. For example, the amount of enzyme preparation contained in a feed made from oat shell powder is preferably 0.001 to 1% by weight. Such feed is very digestible and fully usable; the calculated feed value in the feed table is 7.5 MJ of convertible energy / kg with an oat hull content of 15-30%, but the actual experimental feed value for such feed containing the enzyme preparation is about 10 MJ of convertible energy / kg.

The poultry feed according to the invention is preferably dry and the enzyme preparation contained in the feed is impregnated or mixed with a dry carrier, such as vegetable flour, and granulated by the method described in Finnish Patent Publication 77359, whereby its enzyme activity in the feed is preferably activated.

901 92

The enzyme preparation contained in the feed according to the invention preferably consists of 0.001 to 0.2% by weight of cellulase, 0.001 to 0.2% by weight of cellobase or 0.001 to 0.003% by weight of xylanase in the amount of finished feed.

The feed may also contain a mixture of these enzymes. Depending on the composition of the feed, the feed may also contain other hydrolase enzyme preparations, such as starch degrading glucanases and amylases. The enzyme preparations used in the feed according to the invention are, for example, known commercial products or other enzymes suitable for the purpose in question.

In the feeding method according to the invention, 15 lignocellulosic natural substances, i. to poultry feed containing oat hulls and / or barley hulls An enzyme or enzyme mixture which improves the digestibility of a natural lignocellulosic natural substance is added in connection with feeding 0.001 to 1% by weight of the total weight of the finished feed.

The feeding method according to the invention can improve the usefulness of a feed with a low feed value and a lignocellulosic natural substance.

The invention will now be described in detail by way of exemplary embodiments.

In one experiment, it was investigated whether wheat contained in compound feeds for laying hens could be replaced by oat hulls, and the use of two different enzyme mixtures in female compound feeds was tested. The experiment consisted of eight periods of 30 to 28 days.

At the start of the experiment, there were 4 x 92 chickens per feed group. Ma-16 and Mu-27 chickens were used as experimental animals, both in equal numbers. The oat husks had been ground with a hammer mill.

35 Examples of compound feeds are shown in Table 1. Feeds 6 and 7 cvat reference feeds. In control feed 7, wheat, 30% by weight, was replaced by semi-oat hull powder. In experimental feeds 9 and 11, wheat, 30% by weight, has been replaced by 4,90192 semi-oat husk powder and in experimental feeds 12 and 13 wheat, 30% by weight, has been completely replaced by oat husk powder. Feeds 9 and 12 contain enzyme premix A (cellulase) and feeds 11 and 13 contain enzyme premix B (cellulase 5 and xylanase). The enzyme premix has been added to 1% of the feed. The compositions of the enzyme premixes are also shown in Table I.

TABLE 1 10 ENZYME MIXTURE AND OAT SHELL FOR LAYING HENS Compositions of experimental feed and enzyme mixtures

Experimental feed No. 15 Raw material 6 7 9 11 12 13

Wheat 30.0 15.0 15.0 15.0

Oatmeal 15.0 15.0 15.0 30.0 30.0

Enzyme or

enzyme mixture * A B A B

20 Soybean meal 10.4 10.4 10.4 10.4 10.4 10.4

Fishmeal

Meat and bone meal 4.0 4.0 4.0 4.0 4.0 4.0 4.0

Barley 23.92 23.92 23.92 23.92 23.92 23.92

Oats 15.0 15.0 15.0 15.0 15.0 15.0 25 Viherrae 4.0 4.0 4.0 4.0 4.0 4.0 4.0

Fat mixture

Lime 6.4 6.4 6.4 6.4 6.4 6.4

Seaweed concentrate 0.3 0.3 0.3 0.3 0.3 0.3 30 Salt 0.15 0.15 0.15 0.15 0.15 0.15 DL-methionine 0.06 0.06 0.06 0.06 0.06 0.06

Premixes 0.77 0.77 0.77 0.77 0.77 0.77

Composition of the enzyme or enzyme mixture (per tonne of 35 ready-to-eat compound feed)

II

5,90192

A B

Cellulase, SSOY preparation 1.6 kg 1.6 kg

Xylanase, a commercial Japanese preparation 25 kg 5 »*> Enzyme or enzyme mixture mixed with barley as an enzyme premix, dosage 1%.

Table 2 shows the chemical analyzes of the feeds in Table 1 and the calculated feed values.

TABLE 2

ENZYME MIXTURE AND OAT SHELL FOR LAYING HENS

15 Analytical values of compound feedingstuffs

Analyzed Feed No. values,% 6 7 9 11 12 13

Humidity 11.0 10.5 10.5 10.5 9.6 9.8 20 Crude protein 16.6 16.4 15.8 15.9 14.9 14.5

Fat 5.2 5.4 5.4 5.4 5.3 5.3

Crude fiber 5,9 9,5 10,5 10,0 14,2 13,7

Ash 9.1 9.2 10.2 9.2 10.5 10.5 25 Calcium 2.80 2.46 2.72 2.54 2.81 2.93

Phosphorus 0.72 0.70 0.68 0.68 0.66 0.66

NaCl 0.39 0.41 0.42 0.39 0.43 0.43

Number of analyzes 333322 30

Calculated values ME MJ / kg 10.95 9.27 9.27 9.27 7.58 7.58

Methionine% 0.32 0.30 0.30 0.30 0.28 0.28

Met + cystine% 0.61 0.57 0.57 0.57 0.53 0.53 35 Lysine% 0.73 0.71 0.71 0.71 0.68 0.68 6,90192

Tables 3 and 4 show the results of sections 1-8. TABLE 3

5 ENZYME MIXTURE AND OAT SHELL FOR LAYING HENS

Main results, episodes 1-8 15% oat peel Untreated Avizyme

10 AB

Eating% 77.9 79.4 78.1

Egg weight g 56.1 56.0 56.5

Egg mass, g / day / chicken 43.7 44.5 44.1

Feed intake, g / day / chicken 113.6 110.1 112.5 15 Feed consumption ratio, kg feed / kg eggs 2.59 2.47 2.54 30% oat hulls

Eating% 79.6 78.2

Egg weight g 56.1 55.7 20 Egg mass, g / day / chicken 44.6 43.6

Feed intake, g / day / chicken 115.6 110.3

Feed consumption ratio, kg feed / kg eggs 2.59 2.53

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At the 30% oat shell level, the ratios have also remained at the same level. Laying is 0.4 - 2.1% hi-10 comp and feed intake 9.1 - 11.5% higher than with comparative feed. Feed intake ratios are 0.21 - 0.27 kg / kg lower than in the control group.

The addition of enzyme gave a fully hybridizing feed from a mixture containing 30% oat hulls. The Hy-15 egg production result shows that the chickens utilized the feed excellently and no digestive disorders occurred. Utilization was significantly better than could have been expected from any of the pre-calculated estimates.

20 The application examples are intended only to illustrate the invention without limiting it in any way.

Claims (9)

1. Poultry feed containing lignocellulose-containing natural material and enzyme preparation, characterized in that the feed contains oat husk and / or barley husk above 15% by weight, advantageously 15-30% by weight, and an enzyme preparation 0.001 - 1 wt%, containing cellulase 0.001 - 0.2 wt% and possibly cellobias 0.001 - 0.2 wt% and / or xylanase 0.001 - 0.003 wt%. Poultry feed according to claim 1, characterized in that the enzyme preparation contains cellulase 0.001 - 0.2 wt% and cellobias 0.001 - 0.2 wt% and / or xylanase 0.001 - 0.003 wt%. Poultry feed according to claim 1 or 2, characterized in that the feed contains one on a carrier, such as in a vegetable flour, e.g. barley and / or wheat flour, as a premix mixed enzyme preparation. 4. Feeding method, to improve the utilization of spring feed containing lignocellulosic natural material and enzyme preparation, characterized accordingly, advantageously, an oat peel was added to a feed containing more than 15% by weight, 15 to 30% by weight wt%, containing cellulase 0.001 - 0.2 wt%, and possibly cellobias 0.001 - 0.2 wt. -% and / or xylanase 0.001 - 0.003% by weight or a mixture thereof. Feeding method according to claim 4, characterized in that the enzyme preparation contains cellulase 0.001 - 0.2% by weight and cellobias 0.001 - 0.2% by weight and / or xylanase 0.001 - 0.003% by weight Feeding method according to claim 4 or 5, characterized in that the feed was added to a carrier, such as in vegetable flour, e.g. barley and / or wheat flour, as a premix mixed enzyme preparation. 7. A method for improving the digestibility of poultry feed containing lignocellulosic natural material and enzyme preparation, labeled dSrav, to feed a feed containing more than 15% by weight, preferably 15-30% by weight of oat husk and / or barley shell. 0.001 - 1 wt% containing cellulase 0.001 - 0.2 wt%, and possibly cell lobias 0.001 - 0.2 wt% and / or xylanase 0.001 - 0.003 wt%. 8. A process according to claim 7, characterized in that the enzyme preparation contains cellulase 0.001 - 0.2 wt% and cellobias 0.001 - 0.2 wt% and / or xylanase 0.001 - 0.003 wt%. 9. A method according to any of claims 7-9, characterized in that one is added to the liner on a carrier, such as in vegetable flour, e.g. barley and / or wheat flour, as a premix mixed enzyme preparation. II