Enter the number of maiden heifers served per year

Enter the age at first calving of your heifers

Takes into account 90% chance of a heifer from sexed semen

Herd replacement rate = The number of cows leaving the herd (culls, deaths and TB etc) in any 12 month period / herd size x100

Takes into account 90% chance of a heifer from sexed semen

£1600 @24months + £2.87 per day over 24months

(Will be at a default value of £1600 if no heifers are being reared but not included in further calculations)

Enter the % of your cows you wish to serve to conventional semen

No. of heifers reared to first calving x heifer rearing cost

Enter the % of your cows you wish to serve to sexed semen

Enter the % of your cows you wish to serve to beef semen

Figure based on the amount of straws needed to get all animals in calf at the stated conception rates.

Enter the % of your heifers you wish to serve to conventional semen

Enter the % of your heifers you wish to serve to sexed semen

Enter the % of your heifers you wish to serve to beef semen

:
Current bull worth + maintenance (£500/year)/ total number of calves produced

:
No. calves sired this year x cost/calf + £500 maintenance

Enter the average conception rate achieved across your cows to conventional & beef semen

Enter the average conception rate achieved across your cows to sexed semen

Enter the average conception rate achived across your heifers to conventional & beef semen

Enter the average conception rate achieved across your heifers to sexed semen

No. of calves sold x market value

Calf mortality rate = heifer and bull calves dying up to 12 months/ calves born in a year x 100

Enter the % of heifers that you sell as calves (before 6 weeks of age)

Enter the % of heifers that you rear through to first calving

Taken from Herd replacement rate and based on your average liveweight
Only the value of O+3 cattle is included in Total Margin.

Enter the price/kg achieved for an O+3 cull cow

(Total heifers reared - Herd Replacement Rate & no. of TB culls) x market value of fresh calved heifer

Enter the price achieved/kg for a P+2 cull cow

Insert the average TB reactor value for a cow in your herd if it is routinely forming part of your herd replacement rate. If not, please enter 0.

Enter the average value achieved for the sale of 1 fresh calved heifer

Heifer calves sold before 6 weeks of age

Calf sales + heifer & cull sales

Rearing calves (not more than 6 weeks old)

Rearing calves (not more than 6 weeks old)

Enter the price paid for a straw of beef semen

Margin - Cost of buying in heifers to meet replacement rate

Enter the price paid for a straw of sexed semen

Enter the price paid for a straw of conventional semen

(Value of calf sales - semen costs)/Ave. litres

Value of heifer sales/Ave.litres
(heifer rearing costs already accounted for in sale value)

(Value of cull - cost of rearing replacement heifers)/Ave. litres

(Value of TB reactors - cost of rearing replacements)/ Ave. litres

Average mature cow weight of your herd

Enter the % of your herd replacement rate that will result from voluntary culls

Enter the % of your herd replacement rate that will result from fallen stock (not TB reactors)

Enter the cost of fallen stock collection per animal

Number of your herd that will go as TB culls

Enter the number of bulls that you sell per year for pedigree breeding

Enter the average price achieved per bull sold