-
Streptococcus suis outbreaks on pig farms? Mostly because pig farmers overlooked these small details
When Streptococcus suis appears on a pig farm, it is more often because pig farmers did not pay attention to these small details
-
How is chicken gout diagnosed? It is mostly caused by feeding high-calcium feed
In recent years, the phenomenon of chicken gout caused by high-calcium feed has occurred from time to time, with a long disease course and high mortality. Two cases of gout diagnosis are reported as follows. 1. Incidence situation In May 2000, a chicken farmer in Jinhu Town raised 1000 chickens. After 30 days of age, believing that the content of calcium hydrogen phosphate was insufficient, the amount was increased from 1% in the original formula to 3%. After 20 days of feeding, chicken deaths were found, and a total of 210 chickens died successively, with a mortality rate of 21%. After changing the feed, there was improvement. Through testing, it was confirmed
-
Pond fish "pond turnover" (mass fish suffocation) occurs mostly in the high-temperature seasons of summer and autumn; early prevention is key
Due to negligence in management, fish ponds often suffer from pond turnover, causing great losses to fish farmers. To prevent pond turnover, the symptoms, causes and control measures are briefly introduced below for the reference of fish farmers. 1 Symptoms: Due to severe oxygen deprivation, pond fish gasp at the surface, scattered throughout the pond, mouths opening and closing, calmly taking in oxygen directly from the air at the water surface; in severe cases they slowly turn over, struggling to keep balance, and after repeating this several times, they die belly-up. 2 Dead fish species
-
Pig poisoning is mostly caused by feeding them half-cooked feed
Some farmers feed pigs with half-cooked feed, and shortly after eating, the pigs become restless and agitated, walk unsteadily, have difficulty breathing, and die from convulsions. This is food poisoning, and the main causes are as follows: First, putting green vegetables in a pot and cooking them slowly over low heat for a long time without stirring them can easily produce a toxic substance called hydrocyanic acid, and pigs are highly susceptible to poisoning after eating it. Second, the feed is not cooked thoroughly and spoils after being left standing for a long time. When pig feed is kept sealed in a pot overnight at around 40°C to 70°C, the nitrates in the feed will turn into a toxic substance called nitrite
条件筛选