24/04/2020
Maria the hen laid her first egg of the year!
One of the happiest moment of being a chicken vet is to hear good news from your clients. Maria's owner share a great picture with us of Maria and her first egg (she looks like a proud mama).
About 2 months ago, Maria's owner brought a new hen hoping to befriend Maria. The very next day, the new hen was showing signs of upper respiratory infection and was very lethargic. Maria's owner did a really good job of isolating the sick chicken right away. The sick chicken, unfortunately, was severely ill and she was euthanized humanely. Maria's coop was cleaned and disinfected immediately and she was put on a multivitamin/electrolyte via the drinking water for the next couple days. Fortunately, Maria didn't develop any symptoms.
Maria's story highlighted the importance of proper biosecurity when introducing new birds to the existing flock. Maria could have contracted deadly infected disease from the new hen.
Anytime you purchase a new bird, attend a show or visit an outside flock, you risk transmitting disease-causing agents back to your home flock. Disease-causing agents such as Mycoplasma species are highly contagious and can remain on surfaces for long period of time. Therefore, it is crucial to create that barrier and prevent these disease-causing agents from entering your loft.
Quarantine! Quarantine! Quarantine!
I cannot emphasize enough the importance of quarantine. Have a designated area on your premise to house new/returning birds temporary before introducing them to the flock. The quarantine period should be at least 30 days (preferably 60 days) and may be extended if a disease challenge or a sub-optimal health status is suspected.
An ideal quarantine area should be as far from other coop as possible. The birds that are housed in the quarantine area should have separate feed, water and equipment supply from the home flock to minimize the risk of cross-contamination. Monitor the birds closely, keep a record of basic health parameters such as behavior, feed/water intake levels, droppings, etc. Always visit your healthy flock (or in some cases, youngest flocks that have weaker immunity) first before visiting the quarantine area (from clean to dirty). Keep a separate set of personal protective equipment (PPE) for different lofts. Basic PPE includes coveralls, clean rubber/disposable boots, hair nets, gloves etc.
Only purchase birds that are healthy and are free of disease/clinical history. Ask questions and get records if possible. Check for evidence of external parasites and signs of illness. Many of the experienced chicken keepers are very familiar with identifying abnormal signs; however, even if birds appear healthy, they are still capable of carrying disease-causing agents. When exposed to stress factors such as with new environment and transportation, there is a higher chance of these apparently healthy birds to shed viruses or bacteria again and cause a reinfection. There is also a possibility that your current birds could infect your new birds as their immune status can be different, this is why quarantine is so important even in birds that are not showing any clinical symptoms.