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16748718
Dairy Production
Description
Sixth year Agricultural Science Mind Map on Dairy Production, created by Roisin Reid on 11/02/2019.
No tags specified
agricultural science
sixth year
Mind Map by
Roisin Reid
, updated more than 1 year ago
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Created by
Roisin Reid
almost 6 years ago
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Resource summary
Dairy Production
Dairy Breeds
Holstein Friesian
British Friesian
Montbeliarde
Ayrshire
Jersey
Kerry Cow
Norwegian Red
Jersey x Holstein-Friesian
Milk Composition
Water (87.8%)
Protein (3.2%)
Butterfat (3-4%)
Lactose (4.7%)
Minerals (0.8%)
Factors affecting milk composition
1. Breed
2. Animal Feed
3. Stage of Lactation
4. Stage of milking and completeness of milking
5. Milking Interval
6. Age
7. Disease
Milk Let-down
N.B. Hormones -Oxytocin and Prolactin
Colostrum
Cow produces it for up to 5 days, 2-3L given to calf for 24hours
Benefits
Comparison of colostrum to normal cow's milk
Lactation Curve and Peak Yield
A lactation curve plots milk production of a dairy cow over the course of her lactation until she is dried off.
To calculate total lactation yield (kg): Lactation yield x 200 (average mgmt)
Peak Yield = 6 years, declines thereafter
Factors affecting milk yield
2. Age
1. Frequency of milking
3. Drying off
Late Lactation: Dry-cow treatment
Milk Industry
Creamery Milk Production
Liquid Milk Production
Milk Hygiene
Milk Tests (SCC, TBC, Temp, Sediment, Antibiotics, Excess water
Experiments
Milk Solids
Protein test
Bacteria test
Butterfat content (theory)
Milking Parlour
Herrringbone parlour
Rotary Parlour
Milking machine
Diseases
Mastitis (sub-clinical, summer, clinical)
Nutritional Scour
Infectious Scour
Viral pneumonia
Ringworm
Husbandry and Management of a Dairy Herd
Timelines (spring and autumn calving)
Calving
Mgmt and Hubandry of newborn calf
Weaning
Mgmt during lactation
Milking off her back
Feeding in early lactation
Heat detection in mid/late lactation
Feeding mid/late lactation
Replacement Heifers
Selecting replacement heifers
Target weights at different stages
Bull selection for replacement heifers
Economic Breeding Index (EBI)
Genomic selection
Media attachments
Screenshot (115) (binary/octet-stream)
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