One of the major problems poultry farmers face is bird flu (Avian Influenza or HPAI H5).
\nThis is a viral disease that affects wild birds, captive wild birds and domestic poultry, including backyard chickens, according to Dr Samuel Nsubuga, a veterinary doctor affiliated to Smart Agribusiness Forum Africa. Bird flu if not attended to immediately, can sweep the whole farm.
\nHowever, there are two forms of avian influenza, that is low pathogenicity (LPAI) and high pathogenicity (HPAI).
\nOf the two, the most common one is low pathogenicity avian influenza. Nsubuga says it is mostly harmless and the infected chicken will react with general flu and cold-like symptoms. Highly pathogenicity avian influenza is extremely contagious and kills approximately 90 per cent of all birds (chickens) that catch the disease.<\/p>\n
How it spreads
\nAccording to the veterinary doctor, birds contract the virus via contact with nasal secretions or faeces from an infected bird.
\nThe virus can also spread through; poor biosecurity ventilation in the poultry house, lack of knowledge about bird management, free entrance to outside wild birds, movement of manure in which it can stay for up to 100 days, clothing and shoes of people who visit the bird houses, movement of infected flock into non-infected flock and sharing of equipment and shelter between infected and non-infected birds.<\/p>\n
Symptoms
\nThere are different ways in which bird flu manifests in a poultry house, according to Nsubuga. It however calls for farmers to always be keen, so as to take immediate action. The symptoms may include the following among others, respiratory symptoms, behavioural changes, low egg production, physical signs, gastrointestinal symptoms.<\/p>\n
Respiratory symptoms
\nInfluenza is a respiratory virus, so birds and poultry with bird flu may exhibit respiratory symptoms such as coughing and wheezing.
\nThere may also be nasal discharge, in some cases tinged with blood, according to the veteterinary doctor.<\/p>\n
Behavioural changes
\nNsubuga says birds with avian influenza often behave differently than before they get infected.
\nFor example, they may seem depressed or be inactive. They tend to eat and drink less than normally.
\nThe expert adds that the birds may also suddenly seem uncoordinated and become unable to stand or walk normally.<\/p>\n
Treatment
\nAlthough the virus is very contagious, Nsubuga says that it can be treated as long as the farmer identifies the situation quickly.
\nThe treatment for the virus include antiviral medication which often requires intensive supportive care. However, he advises that the treatment be carried out by a professional veterinary personnel.
\n\u201cFarmers should avoid trials and testing of treatment doses they are not sure of, as these can result into killing of birds or even misuse of drugs and vaccines,\u201d he cautions.
\nDr Nsubuga also gives supplements inform of natural herbs a farmer can give birds as treatment for the virus.
\nAloevera: This is locally known as kigajji. With this, he says that cut pieces of fresh aloevera leaves and put them in drinking water and let the birds drink it.
\nRed pepper: It is known as pilipili or kamulali. Crush these and infuse them into drinking water. Make the birds drink this concoction as this targets their breath problems and respiratory symptoms.<\/p>\n
However, some of the control measures which can be used to avoid the cases of bird flu include; vaccinating uninfected birds. This renders the virus harmless thus avoiding cases in vaccinated birds.
\nVaccination also improves immunity and body defence towards influenza virus.
\nIn this case, a farmer has to vaccinate the birds before cases break out.
\nSeparate the infected birds from the healthy ones to avoid contact. These should be put far away from the poultry house which contain health birds. <\/p>\n
Egg production
\nIf they have stared laying eggs the time they get infected, the infected egg-laying birds often produce fewer eggs than before.
\nIn addition, the egg shells also tend to be soft or with a ram shackled shape (misshaped).<\/p>\n
Physical signs
\nBirds start ruffling of the feathers, the colour of the combs and waddles on the birds turn to bluish-purple. \u201cSwelling is visible in the combs, waddles, hocks, eyelids and the head,\u201d Nsubuga says.<\/p>\n
Gastrointestinal symptoms
\nThese appear inside or within the stomach, in the internal parts of the bird. Diarrhoea may develop in some birds with avian influenza.
\nThe other symptoms that may indicate that your poultry farm has been attacked may include; sudden death without any signs, lack of coordination, lack of energy and appetite, nasal discharge, decreased egg production, coughing, sneezing, bird dozing, poor breathing, low appetite and general weak appearance.<\/p>\n","protected":false},"excerpt":{"rendered":"
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