PERCH SHAPE AND MATERIAL AFFECT PERCH USE AND HEALTH PARAMETERS OF LAYING HENS DURING THE REARING AND LAYING PHASE

Perch shape and material affect perch use and health parameters of laying hens during the rearing and laying phase

SUMMARY: Perches are an important resource for laying hens and differ in characteristics like shape, material and diameter.In this study, different perches were tested in regard to animal welfare, focusing specifically on the behavior and health of laying hens during rearing and lay.Five perches, i.e., square-fiber, mushroom-metal, mushroom-plastic

read more


Estimation of the cost-effectiveness of HIV prevention portfolios for people who inject drugs in the United States: A model-based analysis.

BACKGROUND:The risks of HIV transmission associated with the opioid epidemic make cost-effective programs for people who inject drugs (PWID) a public health priority.Some of these programs have benefits beyond prevention of HIV-a critical consideration given that injection drug use is increasing across most United States demographic groups.To ident

read more

PePIF1, a P-lineage of PIF-like transposable element identified in protocorm-like bodies of Phalaenopsis orchids

Abstract Background Orchids produce a colorless protocorm by symbiosis with fungi upon seed germination.For mass production of orchids, the prevailing approaches are both generation of protocorm-like bodies (PLBs) from callus and multiplication of adventitious buds on inflorescence.However, somaclonal variations occur during micropropagation.Result

read more