Chickens that are confined should be given at least 7 1/2 square feet of space, so a 5â² by 10â² coop would be big enough for about 6 chickens. Bantams, being smaller, donât need as much space per bird.
Vitamin K is a vitamin found in leafy green vegetables, broccoli, and Brussels sprouts. The name vitamin K comes from the German word âKoagulationsvitamin.â. Several forms of vitamin K are used around the world as medicine. Vitamin K1 (phytonadione) and vitamin K2 (menaquinone) are available in North America.
In 1930, vitamin K was first isolated by Doisy and his colleagues, as well as by Dam, from alfalfa sprouts [3]. Until the 1980s, when chromatographic techniques were used, the mainstay of vitamin K isolation was through using chick bioassay [2]. This topic review will focus on vitamin K. Overviews of the other fat-soluble vitamins, minerals and water-soluble vitamins are available elsewhere. Dietary vitamin K1 (phylloquinone or phytonadione) is found in green vegetables like spinach and broccoli (table 2) [4]. Gut micro-flora synthesizes vitamin K2 (menaquinones, including menatetrenone), which provides a portion of the dietary requirement of vitamin K [4].