Flashcards
Mastitis Treatment
Cards in this deck (28)
- 14 ways to cure infection1) culling
2) spontaneous recovery
3) treatment during lactation
4) treatment at dry off - 2Culling: _% effective, but ___100; loss of the cow is expensive
- 3Culling: Primary cost associated with culling. 2nd largest costs?1º=premature culling loss
2º= future milk production losses - 4Culling: Indirect cost per case of mastitis~71% total cost
- 5Spontaneous Recover: only occurs about ____% of the time20
- 6Vaccination: Boosts ___ antibody titersblood
- 7Opsonizationprocess by which the pathogen is marked for ingestion and elimination by phagocytes
- 8Antibodies: promote ___ (IgG__) which ___ bacterial number neutralize toxins (IgG__) which ___ inflammationphagocytosis
IgG2
reduces
IgG1
reduces - 9purpose of vaccinationstimulate antibodies against mastitis causing bacteria to prevent infection, reduce severity, and cure infection (in conjunction with antibiotics)
- 103 Coliform vaccinesJ-Vac
J5 Bacterin
Endovac Bovi - 11Why are coliform vaccines need to manage mastitis?40% of clinical cases are caused by coliforms
Fresh, high-producing cows are very susceptible
cost per clinical episode is high - 12Staph. aureus vaccineLysigin
- 13Why is Lysigin not very effective?S. aureus is largely refractory to treatment
- 144 ways immunization is useful in herds with specific mastitis problems1) reduces severity of infections
2) lowers SCC
3) increases spontaneous cure rate
4) prevents new udder infections - 15Why is it important to treat clinical cases promptly during lactation?the longer bacteria stay in the tissue, the more difficult they are to eliminate
- 16Antibiotic treatment: treats most gram ___ infections (staph. and strep.) (except __.____)gram positive
S. aureus - 17Why are antibiotics not used to treat gram negative infections? *not regarding cell membrane*they usually cure on their own unless the infection becomes systemic or animal is septic
- 184 challenges with S. aureus mastitis1) reaching all sites of infection is difficult
2) keeping antibiotics at adequate levels
3) S. aureus can persist for a while (can antibiotics persist for as long?)
4) it's hard to kill all infecting bacteria - 19Once S. aureus is in the tissue, it establishes _____ of infection in ___-___ tissuesdeep pockets
milk-producing - 20pockets of infection and other events may lead to __, formation of ___, and _____ in the mammary tissue. This makes it hard for treatment to reach all sites of infectionclots
scar tissue
swelling - 21Acute toxic mastitis: Caused by ____ ____:depression, dehydration, diarrhea, shock-> ____coliforms
endotoxin
endotoxemia - 224 ways to counteract acute toxic mastitis1) frequent stripping (removes endotoxin and bacteria)
2) electrolytes (fluid therapy)
3) anti-inflammatory agents (calm inflammation)
4) select antibodies (systemic and intramammary administration) - 23Optimal time to treat mastitis?beginning of the dry period
- 243 reasons why treatment at dry off has a higher cure rate1) higher drug concentration
2) drugs last longer
3) kills more bacteria - 25without dry cow therapy: new quarter infection rates at calving is....8-12%
- 265 advantages to dry cow therapy1) prevents mastitis
2) reduces infections at calving, especially clinical
3) cure rate is higher than during lactation
4) tissue may redevelop before calving
5) antibiotic concentration is minimal - 27Why full insertion is badstretches sphincter
dilates teat canal
removes keratin - 28teat seals: prevents new infections by ___ to ___%50-90%
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- Lactation physiology (Exam 3) Flashcards on Mastitis Treatment, created by Diamond Sapphire on 17/04/2018.
- Created by
- Diamond Sapphire · Apr 2018
- Updated
- Apr 17, 2018
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