Showing posts with label bactericide. Show all posts
Showing posts with label bactericide. Show all posts

Friday, April 8, 2016

COPPER SULPHATE AND ANTIBIOTIC- FREE PIGLET DIET.

Copper sulphate is an old additive that has received renewed interest with the ban of zinc oxide and antibiotics. Long before the advent of zinc oxide, another mineral used to dominate piglet feeds: copper sulphate. It was known to reduce or prevent piglet diarrhea and, as such, it improved animal growth rate and feed efficiency. when the need to rotate antibiotics from batch to batch was necessary, copper sulphate remained a constant addition to even the simplest corn-soybean meal-type diets. With the introduction of zinc oxide, the effects of copper sulphate appeared to wane, but it never completely left the scene, mostly because it is very inexpensive. Supplementing piglet diets with high dosages of zinc oxide is under pressure worldwide. The European Union which has imposed an otherwise restrictive feed legislation, it is common practice to add pharmacological doses of zinc oxide, but only under veterinary prescription.( WATTAgnet.com) Even in the U.S., this ingredient is under scrutiny, along with growth-promoting antibiotics. Luckily, long experiences in the EU have demonstrated that we can replace both antibiotics and high dosages of zinc oxide. This is done through feed reformulation and the use of alternative additives. One of those is, naturally, copper sulphate; old technology at the rescue due to new regulations! Using just a bit of copper sulphate to be sure is not going to harm animals, but it is not going to help them either. Going back to original research, we need 250 ppm to get the full result, and at least 150 ppm to start seeing an effect. And, if we accept the hypothesis of copper sulphate being a bactericide, then we need the highest possible dosage exactly when pathogen pressure is highest. .

Saturday, August 29, 2015

BIO SECURITY: SIMPLE BUT SPECIFIC PROTOCOL TO PREVENT DISEASES.

 BIOSECURITY.  Following simple but specific protocols everyday to positively influence animal health, food safety and public health.  What are the basic protocols in biosecurity?  Biosecurity basically entails, prevention of pathogens from entering premises to ensure there is no disease incidence, and curtail spread of diseases in cases of outbreaks.  Pathogens are disease causing microorganisms that usually have devastating effect on animals, resulting in decreased production and death in severe cases.  Pathogens can be bacteria, viruses, fungi and prion.  Pathogens .  The animal kingdom is riddled with several pathogens that wreck havoc on these animals irrespective of specie.  These pathogens are also of importance to man, especially when these cause zoonotic diseases.  Zoonotic diseases are spread from animals to man, and sometimes there is a reverse zoonoses where man actually spreads the disease to their animals.  Route of transmission.  The basic routes are:  Direct contact.  Aerosol.  Oral.  Fomites.  Vector borne  Zoonoses.  Reproduction.  Environmental contamination.  Mode of transmission.  Direct contact ;disease spread by contact with open wounds, mucous membrane of an infected animal or its secretions/tissue fluids. Disease can also spread through contact with reproductive fluid(blood, urine and saliva) during breeding, or from mother to offspring.  Aerosol; droplets containing the pathogenic agent travel in air and are inhaled as respiratory droplets by animals  Oral; ingestion of the pathogenic agent from contaminated feed ,chewing/licking contaminated objects in environment and water.  Fomites; spread of the pathogen through contact with inanimate objects contaminated by infected animals. Man can act as fomites by transferring these pathogens in through soiled boots, gloves or tools.  Vector; some insects transfer these pathogens from one animal to another through bites.  Zoonoses; these pathogens are transferred from animals to man.  Environmental contamination is key in transmission as some of these pathogens remain infective in the environment for specific periods, thus establishing a foci of infection the area .  Biosecurity procedures  These are simple ,everyday practices to prevent entry of diseases and spread of diseases.  The protocol must be tailored to your farm setting, the type of pathogens affecting your type of animals and public health implication.  The basic biosecurity plan can be broadly divided into 1) isolation,2) cleaning and disinfection 3) waste disposal.  The chemicals to be used will depend on the targeted pathogen,to ensure we get result.  Steps in biosecurity. Isolation.  Isolation; this refers to keeping these pathogens out by following these steps 1)wearing personal protective equipments which could be disposable or reusable. These include boots, gloves, outer wear and masks/nose guards.  Provision of clean, sterilized clothes.  Prevent entry into animal housing.  Quarantine new animals to farm for at least a month.  Creation of a safe zone in the premises, where there visitors such as veterinarians can change to protective clothing before they have access to animal housing.  Isolate sick animals .  Screen farm premises to prevent entry of wild animals, birds, rodents and reptiles.  Cleaning, washing and disinfection.  Cleaning ,washing and disinfection; cleaning refers to removing debris, dirt and waste from animal housing prior to washing with soap/detergent and then disinfecting the premises.  This procedure also done for tools and implements. Egg trays, feeders/drinkers are also cleaned, washed and disinfected.  Foot bath/tyre dips are also classed here; where there is a provision of a foot dip with disinfectants at the entrance of the animal housing, while the tyres of vehicles coming to the facility are sprayed with disinfectant.  Hand washing points must be on the premises; when you come in you wash hands and sanitize hands.  Water sources such as tanks, containers are washed and sanitized  Waste disposal. Waste disposal/handling is a major route of spread of diseases, thus biosecurity practices must include proper management. Waste should be packed at regular intervals and treated with appropriate chemicals/disinfectants before disposal. This is to ensure that what ever pathogen is in the waste does not persist in the environment. When waste is to be used as manure, these should be bagged and stored neatly, and the area constantly cleaned. Composting the waste in a secluded section on farm is the best practice.  Disinfectants  The disinfectant to be used in animal facility must be non corrosive, non irritating, does not taint equipment, non toxic, have wide spectrum of use and easy to use.  There are basically 9groups that are of benefit; aldehyde group, quaternary ammonium, oxidizing agents , alcohol, hypochlorites,phenols,iodophors, chlorhexidene and peroxide.  The disinfectant of choice will depend on the pathogen in question and nature of case.  Thank you.

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