Bombyx mori breeding. Silkworm breeding is aimed at the overall improvement of silkworm from a commercial point of view. The major objectives are improving fecundity (the egg-laying capacity of a breed), the health of larvae, quantity of cocoon and silk production, and disease resistance. Healthy larvae lead to a healthy cocoon crop. Health is dependent on factors such as better pupation rate, fewer dead larvae in the mountage, shorter larval duration (shorter larval duration lessens the chance of infection) and bluish-tinged fifth-instar larvae (which are healthier than the reddish-brown ones). Quantity of cocoon and silk produced are directly related to the pupation
Maru Maru Mori Mori! full-length download to cellphones. Sankei Sports reported that "Maru Maru Mori Mori!" crossed the 250 thousand album sales mark as of 17 July 2011. This makes the group the first Japanese group under 10 years old to exceed 200 thousand sales mark in over 35 years, the last person to do so being Kawahashi Hiroshi with his single "Yamaguchi-sanchi no Tsutomu-kun". On 16 August 2011, Oricon reported that this singles managed to remain in the top 10 list for 12 weeks in a row. Amongst singles released by an artist under 10 years old, "Maru Maru Mori Mori!" now holds