According to the latest data this year, diets with a liquid structure can change the feeding performance and are expected to bring greater cost savings during the pig's growth and finishing period. For a single diet, it is better to use two separate types of feed during the growth and finishing periods. A slight reduction in the lysine energy ratio between 25 kg and 30 kg to the slaughter weight will receive the greatest cost benefit.
The Livestock and Meat Commission (MLC) emphasizes that this is the true stage of breeding. MLC conducted a study of the entire growth stage of Stotfold pigs in the south of England, recognizing the relationship between the growth rate of lean meat per energy unit per day and the continuous increase in energy intake at the same time. Liquid feeds are derived from daily adjustments to suit the environment, although they can also use the final automated combination system to adjust dry feed.
1. Mold in the pipeline.
In Norway based on their wet feed program, industrially produced liquid feed is used throughout the finishing period. Several producers throughout the country use liquid food by-products and household food to produce liquid feed and deliver it to the farm. In this device it is usually balanced with concentrated mix and whey, accounting for 30%-40% of the final diet, blood from household residuals and slaughterhouses, heated to 133 ° C for 20 minutes, then cooled to 80-100 ° C, and add other ingredients such as broken bread and whey, researchers at the Norwegian Pig Health Association and international veterinary institutions said. After mixing, the temperature at the farm is 70-90 ° C. At this time, the liquid in the mixing container is always hot, and is stored in an insulated container device that can be stored for several days.
The heat-treated feed for industrial producers in southwestern Norway is used annually for diets of approximately 25,000 commercial pigs and 2000 sows. The researchers used three field devices to collect samples for microbiological analysis. Most of the results are satisfactory, but the identification of hot liquids in this mode is a problem.
The moist mist from the contents of the mixing vessel can reach the opening at the end of the pipe, allowing the balancing mixture to concentrate and concentrate like steam condensation, and the coarse powder becomes wet and accumulates in the nozzle. Sampling at this location in Norwegian liquid feed equipment showed a large amount of mold reproduction. Researchers have warned that raw materials sometimes become loose and fall into containers and are eaten by pigs. The presence of a large amount of mold does not necessarily lead to the appearance of mycotoxins. This means that preventive testing will avoid this potential danger. They suggested that if the connection point between the container and the steam delivery line was closed, no steam was allowed to enter. The temporary measure is to attach a plastic bag to the end of the pipe. The long-term solution is to install a mechanical cover that passes through this hole after installation and can be successfully controlled by the feed. Or they may consider installing a pipe in the vessel as a steam outlet where the dry powder and hot liquid are blended without agglomeration.
2. Feeding with drinking fountains
In a boar production system of a breeding company in the United Kingdom, liquid feed is used for newly weaned piglets. Weaned piglets receive liquid feed from their drinkers several times a day. Each time the water floods the top of the bowl of the drinker to tilt it, it is returned to the original place by the liquid feed. The same amount of water is automatically released into the bowl as if it were eaten, so piglets can eat and drink at the same time.
The equipment program was operated by Newsham Hybrid pigs, using a smaller bell-shaped plastic drinker for water supply to the chickens, six for each nursery. Originally intended to contain water, now use 4 of them. They are easy to invert when dumped, and their curved lips leave the passage for piglets and are easy to clean.
20 points per day for 5 times a day, in the piglet supplement feeding bar to provide a dedicated powdery piglet diet like dry cream dressing. The Lean Machine breeder sprinkled SCA Nutritio's early starter powder on the granules in the disc, which in the past attempted to remain semi-dry and semi-wet. The original view was to replace the chicken drinker with piglet feed that supplies liquid in an open trough.
According to Karens Caling, research coordinator at Newsham, piglets spend too much time in the trough to drink enough water. Their water intake determines that the appetite stimuli required for maximum growth are too low. Changing the type of liquid feed drinker proved this answer: the weight gain increased by more than 50% in the first 14 days after weaning at 4 weeks of age.
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