buffalo_soldier
Member
- Location
- cumbria
You gain an extra lactation and have less non producing stock on farm basically.
CF is worked back to Carbon/kg milk.
So, extra production from less total stock would be favourable in this example.
Arla
- Thread starter jade35
- Start date
You gain an extra lactation and have less non producing stock on farm basically.
CF is worked back to Carbon/kg milk.
So, extra production from less total stock would be favourable in this example.
buffalo_soldier
Member
- Location
- cumbria
That is the good thing about this process, everybody gets specific to them results. Rather than a generic list.
Whether that will get to Carbon 0. I have no idea. Others have tried and quietly moved away from the ideal.
Whether that will get to Carbon 0. I have no idea. Others have tried and quietly moved away from the ideal.
- Location
- South Molton
But if they're eating carbon sequestrating low input grassland that milkers can't utilise and living to over 10 years when the average lactations is 4 in the UK when calving at 2 how does that add up?
If more milk per animal and not keeping as many is good for cf then number of lactations should trump calving age shouldn't it ?
- Location
- South Molton
Exactly.
One of the recommendations when did CF was increase longevity of cows
dairydurham
Member
buffalo_soldier
Member
- Location
- cumbria
Hey I don't know I'm not one of the boffins
. Casualties and cull rate was in the thing as I recall.
Run some numbers out of interest.
So say 100 cows at 10% rr is 10 per year, calving at 3 so 30 Youngstock per 100. 10@300days 10@600days 10@900days. Total stock days 18k
25% rr is 25 per year, calving at 2 so 50 per 100. 25@300days 25@600days. Total stock days 21k
Assume 8k herd average. Hfrs doing 6k.
15 extra lactations at 6k is 90k extra liters.
Which is 11 extra cows production equivalent per year.
Now I dunno if you times that by 2 or 3 to compare, so split the difference at 2.5 is 27 per 100.
More milk, less stock.
First bit agrees with you guys
Second bit agrees with me.
. Casualties and cull rate was in the thing as I recall.Run some numbers out of interest.
So say 100 cows at 10% rr is 10 per year, calving at 3 so 30 Youngstock per 100. 10@300days 10@600days 10@900days. Total stock days 18k
25% rr is 25 per year, calving at 2 so 50 per 100. 25@300days 25@600days. Total stock days 21k
Assume 8k herd average. Hfrs doing 6k.
15 extra lactations at 6k is 90k extra liters.
Which is 11 extra cows production equivalent per year.
Now I dunno if you times that by 2 or 3 to compare, so split the difference at 2.5 is 27 per 100.
More milk, less stock.
First bit agrees with you guys
Second bit agrees with me.
buffalo_soldier
Member
- Location
- cumbria
I also don't get why moving to 24mth calving would more than double a replacement rate though.
- Location
- South Molton
Well given the correlation of evidence with younger calving age and the average number of lactations I'd say the UK is pretty abdominal!
dairydurham
Member
- Location
- Northumberland
Go to any dairy sale. Bet you will find more fresh heifers over 30 months than under
frederick
Member
- Location
- south west
Perhaps that's why they were forced to sell up.
dairydurham
Member
Huge price difference between a 2yr old and 27/28 month old animal usually I find when selling
Farmer Keith
Member
- Location
- North Cumbria
That’s because the common perception is that big stock are better and very few farmers that shop in the live ring understand that bigger cows cost so much more to keep.
Of course if you’re selling there why would you not calve at 28 months.
Big article (page 3 no less) of yesterday's Times on Arla & their trial on housed herds using a farm in Princes Risborough.
Each cow to wear a "fitbit" style necklace to monitor her activity 24/7 and to give a "happiness/wellbeing" score.
Results due early summer 2022
Each cow to wear a "fitbit" style necklace to monitor her activity 24/7 and to give a "happiness/wellbeing" score.
Results due early summer 2022
I reckon the results will show the cows are happy!!
I would stick my finger in the air and agree with you
It better show that, #canofworms if the results tell us that they’re unhappy. At least arla is involved with the trial and not some militant animal rights group. Perhaps they will be able to come up with the ’right’ result.