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Dairy Revision Complete, Milk Quality Experiment, Antibiotics, Mastitis,…
Dairy Revision Complete
Reason For Culling
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Health
Lameness, Disease, Prone to Infection
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Milk Composition
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Milk recording
periodic testing of cows milk for SCC, Yield ,Composition and Disease
Benefits
Reduce Somatic Cell Counts –identify, isolate and cull cows with High SCC or SC Mastitis
Increase overall milk value A+B-C - so identify the cows which are most profitable based upon milk yield and milk solids (Protein/Butterfat)
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Milk Testing
Withdrawal Period: period of time before antibiotics will leave the system and animal can enter the Food Chain
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Thermoduric Bacteria
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Cause – AMR, Poor Hygiene, Dirty Cows
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Milk Quality Experiment
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White-Good, Pink -Poor, Blue-Bad
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Body Condition Score
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Stages of Importance
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At calving : Fat cows may develop Disease ketosis, milk fever, mastitis, lameness and infertility.
Early Lactation Dairy cows are under nutritional stress and adequate feeding is essential to avoid weight loss.(Milking off her back) Thin Cows = Reduced milk - Fertility
At service Dairy cows should not be in energy deficit by this stage as this may result in low fertility
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Breeding
Heat Detection
Kamar
Pressure sensitive chamber with red dye, which is activated by standing heat behaviour.
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Tail Paint
Tail Paint : thin strip of paint applied to the top of the cow’s tail
If the cow is mounted – a clear sign of oestrus – the thin strip of paint will be rubbed off
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Dairy Disease
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Endoparasite: Parasite living inside the host (Fluke, Worm)
Ectoparasite: Parasite living outside the host (Lice, Tick, Mange)
Endemic: A common disease (pneumonia, Redwater, Milk Fever
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Pathogen: Infectious Bacteria, Virus, Fungus or Protozoa
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Pathogenic
Fluke
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Cause - Mud Snail carries fluke, ingested by cow and travels to stomach/liver - Common in wet areas
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Udder
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Milk let down
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Pituitary gland produces hormone oxytocin that travels to udders causing the alveoli to contract forcing milk out.
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Parlour
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Milking Robot
Positives
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Monitors Daily SCC, Health and Breeding
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Milk Quality Experiment
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White-Good, Pink -Poor, Blue-Bad
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Mastitis
Prevention
Parlour Hygiene - Gloves, Hot Washed, Change Milk Liners
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Cause: Bacteria (Staph, E-Coli)
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