Facilitated Diffusion

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What is facilitated diffusion? In membrane, there are protein channels (pores) that allow polar molecules (soluble in water but not soluble in lipids) to move through them. The molecules that move through these channels never come into contact with the hydrophobic layer or the membrane's polar surface because these channels provide a continuous pathway for molecules that are moving through them. In this type of diffusion, like simple diffusion, no energy is consumed. Large and polar molecules require help to pass through the membrane. This help is done by a type of protein called carrier (transport) protein . To pass through the membrane, a molecules binds (temporarily) with carries protein in lipid bilayer and is transported from an area of higher concentration to an area of lower concentration.  Related topics: Simple Diffusion
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pododermatitis/bumble foot-causes-symptoms-treatment

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For Urdu Click [HERE]

Bumble foot/Pododermatitis

This disease is called as Pododermatitis.It is caused by injury to the lower surface of the foot and subsequent infection with staphylococcus bacterium.

Common causes of injury:

Injury may be caused by

Rough perches

Splinters

Wire floors

Poor litter or bedding quality

•Clinical signs


Its symptoms include

Lameness

Swelling of the foot pad

Hard,pus-filled abscess on foot pad

•Treatment

This disease can be cured by following treatment.

Soak foot in warm water and Epsom salts.

Disinfect with alcohol.

If skin is open,drain the pus from abscess.

Flush abscess cavity with hydrogen peroxide to cleanout pus and debris.

Pack the cavity with antibiotic ointment.

Wrap the foot with gauze and elastic bandage.

Repeat daily until foot heals.

• Prevention and control

Provide good quality litter or bedding.

Keep bedding clean,dry,and deep.

Keep perches less than 18 inches from the floor to prevent foot damage due to impact from jumping.

Remove potential source of injury such as sharp objects and/or surface.


Infectious Coryza/Fowl Coryza in poultry

 

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