Questions to pay attention to when raising three-way hybrid lean pigs

Questions to pay attention to when raising three-way hybrid lean pigs

The genetic composition of the hybrid pig variety must be scientifically managed to ensure a balanced three-way crossbreed. The blood relationship among the parent breeds significantly influences key performance indicators such as daily weight gain, feed conversion ratio, slaughter rate, and lean meat percentage. Therefore, it is essential that the ancestry of these three-way crossbred pigs maintains a certain level of genetic relatedness. To ensure this, clear identification and detailed records should be maintained for verification purposes. The early growth and development of piglets are closely linked to their birth weight, weaning weight, and overall weight gain. A strong indicator of healthy development is when piglets reach over 17.5 kg by 45 days of age. This suggests good growth during both the fetal and lactation periods, as well as optimal daily gains and feed efficiency during the finishing phase. If the age of the pig is uncertain, the development of sexual organs can serve as an alternative indicator. For pigs weighing between 20 and 25 kg, if the testes in boars or the vulva in sows have not started to develop, it indicates normal growth. Conversely, if they have begun to develop, it may suggest delayed growth. Proper nutrition plays a crucial role in enabling pigs to reach their full production potential. Inadequate feeding with low-energy diets can limit their growth and productivity. Additionally, the nutritional content of feed directly impacts the immune system of the pigs and the quality of the carcass. Therefore, ensuring a complete and balanced diet is one of the most important factors in maximizing the productivity of three-way hybrid lean pigs. Reducing feed costs is a major concern in pig farming, as feed typically accounts for around 70% of the total production cost. To cut expenses while still meeting the nutritional needs of the pigs, several management strategies can be implemented. One approach is multi-stage feeding, where the growth period is divided into phases, and the proportion of high-cost protein feeds (such as concentrate premixes) is gradually reduced every 10 days, while the base ingredients are increased accordingly. Another method is to use raw feed, as many nutrients—especially vitamins—are easily destroyed at high temperatures. Feeding raw feed also encourages chewing, stimulates saliva production, and enhances the effectiveness of digestive enzymes, improving overall feed utilization. Restricted feeding is another effective technique. By limiting feed intake to about 80-85% of the full amount, especially after pigs reach 60 kg, feed efficiency and lean meat percentage can be improved. However, it's important not to restrict feeding when pigs are under 60 kg, as this could negatively affect their daily weight gain. Timely slaughter is also critical, as prolonged feeding increases fat deposition and reduces carcass leanness. Pigs that grow too large require more energy for fat storage, which is nine times more than for protein. Therefore, it's best to slaughter three-way hybrid lean pigs when they weigh between 70 and 90 kg. Maintaining a favorable environment is essential for the health and well-being of the pigs. Three-way hybrid lean pigs are more sensitive to stress, which can lead to poor growth, illness, or even death. High temperatures can reduce appetite and slow weight gain, while cold temperatures increase energy expenditure. Overcrowding, noise, and poor air quality can cause stress-related behaviors like tail biting and fighting. To prevent this, pig houses should be kept cool in summer, warm in winter, well-ventilated, and at an appropriate stocking density. Finally, disease prevention, strict biosecurity measures, and regular disinfection are vital to maintaining a healthy herd. These practices help prevent the spread of diseases and ensure the long-term success of the farm.

Digestive System

For the treatment of diseases of the digestive system:

Many symptoms can signal problems with the GI tract, including: abdominal pain, blood in the stool, bloating, constipation, diarrhea, heartburn, incontinence, nausea and vomiting and difficulty swallowing, according to the NIH.


Among the most widely known diseases of the digestive system is colon cancer. According to the Centers for Disease Control (CDC), 51,783 Americans died from colon cancer in 2011 (the most recent year for available data). Excluding skin cancers, colon and rectal cancer, or colorectal cancer, is the third most common cancer diagnosed in both men and women in the United States, according to the American Cancer Society.


Polyp growth and irregular cells, which may or may not be cancerous, are the most common development paths for colorectal cancers (also referred to as CRC), and can be detected during a routine colonoscopy, according to Dr. John Marks, a gastroenterologist affiliated with the Main Line Health health care system.


[The best news is that, if caught early enough, they can also be removed during the colonoscopy - eliminating the possibility that they grow further and become cancer," Marks said.


For those patients whose cancer has already spread, there are various minimally invasive surgical options that have extremely good prognoses. It is recommended that asymptomatic patients without a family history begin getting tested regularly between the ages 45 and 50, according to Marks. [Symptoms which may suggest that you need a colonoscopy at an earlier age include rectal bleeding and stool/bowel habit changes which last for more than a few days."


While CRC gets a great deal of attention, many diseases and conditions of the digestive system - including irritable bowel syndrome, diverticulitis, GERD (acid reflux) and Crohn`s disease - can be chronic and are difficult to diagnose and treat, according to Dr. Larry Good, a gastroenterologist affiliated with South Nassau Communities Hospital. [With many of these diseases, blood work and colonoscopies all looks normal, so there is an absence of red flags."


Many of the diseases of the digestive system are tied to the foods we eat, and a number of sufferers can reduce their symptoms by restricting their diets, Good said. [Of course no one wants to hear that they can`t eat certain foods, but many times, eliminating acidic things from the diet, such as tomatoes, onions, and red wine, can have an impact," Good said.


There are a number of tests to detect digestive tract ailments. A colonoscopy is the examination of the inside of the colon using a long, flexible, fiber-optic viewing instrument called a colonoscope, according the American Gastroenterological Association. Other testing procedures include upper GI endoscopy, capsule endoscopy, endoscopic retrograde cholangiopancreatography and endoscopic ultrasound.

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