General composition and feeding value of flax cake

Table 2-3-23

General composition and nutritional value of flax cake

Category

Dry matter %

Crude protein %

Crude fat %

Crude fiber %

Crude ash. > .89

1.

39.4

extracted meal

89.

36.2

1.5

9.5

6.3

.38

.85

1.. Kg

digestible crude protein g/kg

crude fiber %

mechanical pressed cake

4.39

3.1

2.9

292

8.9

4.82

3.3

2.29 <

taste

it has the special flavor of flaxseed cake, and cannot be rancid, moldy, burnt and other peculiar smells.

the texture is

powdery, without too many impurities and caking.

specific gravity

. 48—．56kg/1。

2. Immature flax seeds contain aglycones containing flax glycoside and flax enzyme. Under the conditions of pH 5, temperature 4-5℃ and humidity, the interaction between them releases hydrocyanic acid (HCN), which is easy to cause livestock poisoning. Sesame cake heated for ten minutes can destroy its toxicity. Leaching with trichloroethylene or carbon tetrachloride will also destroy flax picroside. However, excessive heating will damage the heat-labile vitamins and reduce the utilization rate of lysine, arginine, tryptophan and cystine.

1. Characteristics

Linseed cake is a feed from protein, and its amino acid composition contains 1.1% lysine, .47% tryptophan, .47% methionine and .56% cystine. The vitamin content of sesame cake is carrot L, vitamin .3mg/kg, thiamine 2.6mg/kg, riboflavin 4.lmg/kg and choline 1,672 mg/kg. Nicotinic acid 39.4mg/kg, pantothenic acid 16.5mg/kg. Generally speaking, lysine and egg ammonia are scarce, except for viscous substances, other carbohydrates are sugar and fiber, minerals are rich in calcium and phosphorus, and vitamins A and D are few, but group B is very high; The sesame cake becomes sticky after being mixed with water, which is caused by the mucus cells contained in the husk of the sesame seed, accounting for about 2-7% of the seed. It is a water-soluble carbohydrate, which can be used by ruminant rumen microorganisms and yeast, and absorbs a lot of water in the digestive tract to make livestock defecate smoothly. But monogastric animals cannot use it. Sesame cake is one of the natural selenium sources. According to the report of the University of South Dakota, the selenium content of sesame cake is .13-3.6, that is, m, with an average of 1.4ppln.

2. Using

flax cake can be used as feed for protein to feed various animals. However, excessive feeding can soften animal body fat and affect product quality, so it is best to mix it with other protein sources to supplement lysine and other nutrients.

Chickens

Sesame cakes should be avoided in chicken feed. When 5% of them are used, appetite will be reduced, growth will be hindered, and when 1% of them are used, death will occur. The toxicity of flax cake can be reduced by soaking in water, high pressure steam treatment or adding vitamin B to the formula.

Pigs

have higher feeding value than sesame cakes and peanut cakes. However, due to the imbalance of amino acids, it must be mixed with other sources in protein, and the feed for pigs can reach 8%. Excessive dosage will lower the melting point of back fat and cause soft fat, B6 deficiency and diarrhea in finishing pigs.

Ruminant

Sesame cake is a high-quality protein source of ruminants, which can be used as feed for cattle, horses and sheep, and has good palatability, high fattening effect for beef cattle, and can improve the milk yield of dairy cows and the coat of domestic animals. It can be used for young sheep, adult sheep and breeding sheep, and has the effect of relaxing bowels and strengthening horses, but diarrhea occurs when the daily feeding amount exceeds .5k9.

aquatic products

are sticky, which is beneficial to making granular materials. Adding less than 5% into bait has no obvious effect.