The circle invites the observer to step inside the sacredness the cross represents, like a capsule of honor. Consider some well known objects that are circles. The planets, the sun, the moon, clock faces, many kinds of seeds, wheels, coins, rings and eyes just to name a few.
Feed Per Day. On average, a laying hen will require approximately 1/4 to 1/3 of a pound of feed every day, or roughly 1.5 pounds of feed per week according to Nutrena Feeds. At this rate of consumption, every hen you have will require slightly less than 10 pounds of feed each month, regardless of whether or not she is actively producing any eggs.
Survey data shows that average sow feed intake during lactation is only 11.5lb per day (range 8-15lb per day for the bottom and top 10 % of producers, Aherne 2000). Some of the feed intake differences among farms may be explained by differences in genotype, lactation length, parity distribution, disease levels etc., but much of the difference is still due to feeding management.