PGA is a water
soluble, biodegradable, non-toxic biopolymer produced by microbial
fermentation. PGA is a sticky material first found in "natto", a
fermented soybean. PGA is an unusual anionic, naturally occurring homo
polyamide that is made of D & L glutamic acid units connected by amide
linkages between alpha amino & gamma carboxylic acid groups.
It is produced
through fermentation by Bacillus subtilis using glutamic acid. PGA is consists
of glutamic acid monomers crosslinked between α-amino and γ-carboxyl groups,
and the molecular weight of PGA is usually between 100~1000 kDa. It is
water-soluble, edible and non-toxictowards human, and is environment friendly.
It has broad applications in the fields of medicine, food, cosmetics, and water
treatment.
Specification
CAS No.:
25513-46-6
Other Names:
Grade Standard:
Food
Grade, Cosmetic Grade, Agricultural Grade
Usage:
Animal Pharmaceuticals
Purity:
99%min
Appearance:
White Powder
Product Name:
Polyglutamic Acid
CAS:
25513-46-6
Shelf life:
2 Years
Poly Y Glutamic Acid,Poly Gama Glutamic Acid,High Purity Polyglutamic Acid,Glutamic Acid Production Qufu Hi-Tech Trading Co., Ltd. , https://www.chinahyaluronic-acid.com
First, the preparation of the chicken house. In the places where the temperature difference in the four seasons is relatively large, broiler coops can be made of closed type and paved with concrete to facilitate flushing and disinfection. All light-transmitting parts of the broiler chicken house should have blackout curtains, and the entrance should have barbed wire. Breeding chickens can be raised on the ground. When the weather is cold, the grass is laid on the ground. When the weather is hot, the sand can be laid. It is also possible to use full floor nets, 2/3 floor nets or 1/2 floor nets, and the rest of the ground is bedding grass.
In the early stages of breeding, especially when just coming from the brooding house, there is still a certain amount of heating required. Heating equipment can be warm umbrellas, fire pits and so on. Feeding and drinking equipment can be set up in accordance with the standard of 7 cm for each chicken and 1 cm for sinks. Perches can be calculated as 1 meter for 15 chickens. With the use of floor nets, it is not necessary to set up a perch. The distance between the two perches is 30-35 cm and the habitat is about 100 cm from the ground. When catching chickens, equipment should be prepared. A bamboo pole with a length of 2 to 3 meters can be used. The front end is a mesh net with a mesh diameter of 40 cm that is woven with a string.
Second, breeding density. 15 to 20 per square meter during the early stage of breeding, and 6 to 15 per square meter during the rearing period. Pre-bred chickens can occupy 1/3 of the ground in chicken houses, and then gradually increase in size as the chicken grows. Normally, it can be increased or decreased according to the house temperature and humidity.
Third, light. Male and female hens should be reared in groups and given different illumination. In the early period of breeding, the light hours were maintained for 8 to 9 hours, and the light was gradually increased to 14 hours during the later period of rearing. The light intensity was 0.5 to 1 watt per square meter, and the roosters had to increase the light earlier than the hens during the rearing period.
Fourth, feed. General reference can be made to the following proportions of feed: corn 50% to 52%, wheat flour 6% to 8%, bran 4% to 14%, grass powder 2% to 6%, bean cake 12% to 22%, fishmeal 4% to 8 %, bone meal 1.5% ~ 1.6%, shell powder 0.5% ~ 1.5%, salt 0.4% ~ 0.5%, additives (including trace elements, vitamins, amino acids, somatotropin, antibiotics, etc.) 0.5%. Breeding chicken feed 2 to 4 times a day, the other can be fed a suitable amount of green feed.
Fifth; limit feeding. Restricted feeding is based on quantitative feeding of chickens at different ages, so that the body weight of chickens meets standards. When it is overweight, it can be fed every other day. However, 5% of the flock's body weight (called fasting body weight) must be randomly selected every 2 weeks, and the average body weight and uniformity immediately after weighing should be calculated and compared with the standard body weight.
Six, disease prevention and treatment. The guinea fowl in the breeding period are susceptible to intestinal disease, coccidiosis, candidiasis, and trichomoniasis, and they should be prescribed preventively. When broilers are transferred into laying hen houses, they should be performed under weak light at night.
Gamma-poly-glutamic acid (gamma-PGA) is a natural occurring, multi-functional,
and biodegradable biopolymer.
Breeding Techniques for Breeding of Guinea Pigs in Breeding Period
The breeding period of guinea fowls refers to the stage of 3 to 25 weeks of age. It can be divided into pre-development and post-development. The former is 3 to 8 weeks old, and the latter is 9 to 25 weeks old. In order to cultivate healthy, high-yielding egg-laying flock, we must do a good job of feeding and management at this stage.
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