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C57Bl/Icrfat 27 Month/s Skin Male Frozen

Tissue

Skin

Summary

Cohorts were originally derived from Jackson stock ID000664, imported Jan 2009 and have been bred for more than 10 generations

Animal

 

Age in Months

27
 

Gender

Male
 

Strain

C57Bl/Icrfat
 

Weight

39.23

Housing

 

Cage type

North Kent Plastic cages
 

Cage size

MB1 or RC1
 

Animals per cage

MB1 up to 4. RC1 5 or more
 

Air changes per hour

Approx 24
 

Frq of cage change

1 x per week; transferring part or of all nesting & environmental enrichment to alleviate post cage change aggression between male mice & reduce stress
 

Water delivery

bottles; fresh daily

Nutrition

 

Type of chow

SDS CRM(P) in hopper; floor fed forage mix; CRM FG fed as mash
 

Chow composition

CRM (P)= extruded pellets; CRMFG = CRM pellets fine ground by manufacturer
 

Chow processing

CRM(P); no processing; placed in food hopper to allow ad-lib feeding. CRMFG mixed with warm water to a paste placed on cage floor; changed daily. Forage mix added to substrate when cage changed & pinch given daily when checking mice
 

Water type treatment

normal mains drinking water

Sacrifice

 

Method of sacrifice

Cervical dislocation
 

Notes at necropsy

Skin; Back of shouldercyst/scratched skin 1 cm