Chalkbrood and stonebrood are two fungal diseases associated with honey bee brood. Chalkbrood, caused by Ascosphaera apis, is a common and widespread disease that can result in severe reduction of emerging worker bees and thus overall colony productivity. Stonebrood is caused by Aspergillus spp. that are rarely observed, so the impact on colony health is not very well understood. A major concer...

Fungus-growing ants (Myrmicinae: Attini) live in an obligate symbiotic relationship with a fungus that they rear for food, but they can also use the fungal mycelium to cover their brood. We surveyed colonies from 20 species of fungus-growing ants and show that brood-covering behavior occurs in most species, but to varying degrees, and appears to have evolved shortly after the origin of fungus f...

During present studies colony record of Apis mellifera under stationary condition was recorded minimum (3.30 bee frames/conoly) in First fortnight November 2019 and maximum (8.30 frames/ colony) second January 2020. Brood area significantly low (1160.34 cm2/colony) October high (4013.67 first Pollen (345.0 (1720.71cm2/colony) February The honey store observed (1660.50gm/colony) No incidence EFB...

Largemouth bass Micropterus salmoides broods were experimentally reduced in size to test whether brood size (BS) and simulated brood depredation affect the decision by a male to continue providing care for its brood or to abandon that brood prematurely before its offspring reach independence. The highest ranked of the generalized linear models predicting brood abandonment was based on the numbe...

Honey bee (Apis mellifera L.) colonies bred for hygienic behavior were tested in a large Þeld trial to determine if they were able to resist the parasitic mite Varroa destructor better than unselected colonies of “Starline” stock. Colonies bred for hygienic behavior are able to detect, uncap, and remove experimentally infested brood from the nest, although the extent to which the behavior actua...

in teleosts the insulin-like growth factor-i, a member of igf system, play an important role in the control of growth and reproduction including metabolism, cell division, oogenesis, final oocyte maturation and secretory activity. this system is controlled by several hormones and metabolic status. serum igf-i, thyroxine (t4) and cortisol levels were studied in two female brood stocks (caught fr...

Honey bee (Apis mellifera L.) colonies bred for hygienic behavior were tested in a large field trial to determine if they were able to resist the parasitic mite Varroa destructor better than unselected colonies of"Starline" stock. Colonies bred for hygienic behavior are able to detect, uncap, and remove experimentally infested brood from the nest, although the extent to which the behavior actua...