1. Sprayfo and cow’s milk

2. Content Cow’s milk on dairy farm Feeding cow’s milk to rearing calves
Cow’s milk  Calf Milk Replacer
Management of rest milk
Conclusions

3. Cow’s milk on a dairy farm
Cow’s milk is produced for delivery to milk processing industry
Sales of cow’s milk = basic income for dairy farm
Cow’s milk of first 2-3 days after calving is undeliverable
Milk of cows treated with antibiotics is undeliverable
Undeliverable milk = rest milk
Farmers prefer not to dump rest milk
Feeding cow’s milk to calves seems easy and cheap

4. Feeding cow’s milk to rearing calves

5. Advantages of cow’s milk
Cow’s milk tastes good, is well-accepted by calves  high intake of cow’s milk slows down intake of concentrates
Cow’s milk is easy to supply  correct execution means more manual work
Calves on cow’s milk look good  Only optical:because of shine (high fat) and filling (rennet)
Dumping rest milk is financial loss  is correct, but can be approached differently: Better management of rest milk (later)

6. Disadvantages of cow’s milk
Cow’s milk may contain harmful pathogens  Transmission of Para-tbc on other threats
Penicillin milk contains antibiotics
 Create resistance of dairy cows against penicillin
Cow’s milk is too fat  slows down rumen development, insufficient growth after weaning
Cow’s milk is low in vitamins and trace elements  More anemia and weaker bone structure

7. Creative with cow’s milk?
Too much fat  dilute milk with water consequence: less vitamins and trace elements
Too much fat  skim the cream off the whole milk consequence: less fat-soluble vitamins
Labour involved = too much manual work on large farms Simple calculation: For feeding 50 calves = transport 15,000 litres of cow milk = poor 80 bags of calf milk replacer in
an automatic drinking machine

8. Cow’s milk compared to calf milk replacer

9. Cow’s milk is variable 12.5 + or - 20% 26 + or - 15% Growth 32
Norm
Variation on cow milk
Function
Dry matter %
12.5
+ or - 20%
Protien % in DM 26
+ or - 15%
Growth
Fat % in DM 32
+ or - 25%
Energy
Lactose % in DM 34
Variable nutrients  variable growth  more diarrhoea
Source: Sloten 2010

10. Cow’s milk is not balanced

11. Calves on cow’s milk low in iron
182 bull calves to trial farm Sloten in 2009
Age at arrival: over 2 weeks
At arrival all calves tested on Hb value (standard)
Bull calves most fed with cow’s milk
Minimum – reference Hb value is 10.5 mg / 100 ml
Average Hb value is 8.8  TOO LOW !
20% meets standard > 10.5
46% too low 8 – 10.5
34% critically low < 8

12. Cow’s milk results in anaemia!
20% above norm
34% critical low !
Spread of Hb value in starting calves
46% Too low !
number of calves
Hb value

13. Trial on feeding cow’s milk
Milk fed to calves as:
Not pasteurised cow’s milk
Calf milk
replacer
Milk intake (g DM/day)
475
Intake concentrates (g DM/day)
410
450 (+10%)
Growth up to day 42 (g/day)
481
531 (+10%)
Feed efficiency; Gram growth per kg of total feed
240
272 (+13%)
Source: Hill et al., 2007

14. Watch out with feeding too much milk
Milk only  Low concentrate intake  Bad rumen development

15. Management of rest milk

16. Feed rest milk to calves for sale
Conclusion:
In theory, a farmer
does not have a surplus
of rest milk

17. Too much rest milk? Different challenge!
Conclusion:
Farmer with
too much rest milk
has a different challenge

18. Conclusions

19. Sprayfo made for calf rearing
Feed calves with:
Cow’s milk
Sprayfo
Prevents transmission of diseases No
Yes
Stimulates intake of concentrates
Low
High
Level of vitamins & trace elements
Too low
Perfect!
Nutrient composition
Variable
Very constant
Effect on farm profit
(with feeding rearing calves)
Moderate
Good

20. Sprayfo better for calf rearing
Safer
constant composition, less chance of diarrhoea
with Safety Packege and/or specific antibodies
Healthier
added iron and vitamins
composition enhances intake concentrates
less transmission of diseases (such as Para-tbc)
Simpler
to feed calves irrespective of milking time
especially in case of automatic feeding
less diarrhoea problems
 AND a higher profit per dairy cow!

21. Sprayfo brings higher profit
Cost price per litre Sprayfo is lower than 20 cents
Sales price per litre cow’s milk is more than 25 cents
In short:
 Sell cow’s milk for highest profit
 Including package of advantages: growth, health, durability and milk production in future

22. Thanks for your attention
Sprayfo Growth Champion – Your future
Thanks for your attention