-What location did you install them in?Sakai: I myself knew the points where crows tend to gather. I think all producers do so.-This year, there is another outbreak of bird flu in Hok-kaido.Sakai: In April, outbreaks occurred in Shiraoi Town and Abashiri City on the same day, followed by another outbreak in Kushiro City in late April. In the past, Hokkaido has had fewer outbreaks of avian influenza than Honshu, which is an island that form the main part of the Japanese archipelago, so tensions rose dramatically. As you can see on the map of Hokkaido, Shiraoi is in central Hokkaido near Tomakomai In addition to crows, the product is also said to be effec-tive in repelling seagulls, kites, and eagles. President Kato said, “If you are troubled by seagull droppings, this Crow Shield will be useful. Marine Saponins are also believed to have cockroach repellent, deodorizing, and sterilizing ef-fects, and we are currently studying the feasibility of com-mercializing them.”Whether it is crows or cockroaches, it can be expect-ed to have the effect of keeping them away from the sur-roundings, so that the user will no longer “see” them. In fact, ing crow repellent products. However, I felt confident that Mr. Kato’s products would be safe, and he had accumulated research on starfish extract, so I trusted him and purchased my first two or three sheets in 2020.For example, utility poles. Installing them on utility poles is dangerous because of the height of the work. So, after receiving a lecture from Mr. Kato, I decided to place it in a position where crows perched on the pole could see it. I was surprised to learn that the ‘repellent uses sight rather than sound.’Specifically, we placed them on the exterior walls of the chicken coops, outside the feed tanks, and other areas where they could be seen by crows perched on utility poles. Before installing the shields, I raised my hand and held the shields up to the crows on the poles, and they all ran away. So, I think the height of the shield is sufficient. I immediately purchased about 20 more shields because I could confirm the effectiveness of the shields.the company is currently developing a cockroach repellent product that contains Marine Saponin in a water-absorbing polymer for sale.In addition to these applications, the company is also aiming to improve the design of the crow shield, and Presi-dent Kato said, “We would like to offer not only owl designs, but also various other variations, such as stylish designs that do not detract from the surrounding landscape and large-format types that can be attached to walls.and Noboribetsu, while Abashiri and Kushiro are in eastern Hokkaido. The fact that the outbreaks occurred simultane-ously in locations more than 300 km apart means that they could have occurred anywhere at any time in this area. We made a hasty call to Mr. Kato and purchased additional crow shields.In the past, crows were chased away with firecrackers, but the crow shield has saved a lot of labor because crows are reduced by simply hanging it up.Mr. Kato told me that it works well for birds of prey, but my experience is that when I held the crow shield over the sparrows, they ran away. Crows are not the only ones that come close to poultry farms, so it has been very helpful.-Have the number of crows decreased since the instal-lation?Sakai: The number of crows has decreased. When we opened the chicken coop to clean up chicken droppings, crows sometimes en-tered the coop, so we placed them near the entrance of the coop, and the number of crows that used to be five or six has been reduced to one. The number did not drop to zero, which I believe is due to individual crows and the lifespan of the crow shield. We were told that the effect lasts for six months, but in our case it lasted for about a year.51SAKAI FARMS’s Eggs
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