10 March, 1917.] The Value of u i'lire-Bred Dairy Sire. 



167 



111 Januai-y, 1910, he uoticed Mr. Brown was advertisiug a fine 

 youug Jer.sey bull, whose dam made 450 lbs. fat and grand-dam 400 in 

 the nine ii oiiths under Government Herd Test. The same high producing 

 powers were on the sire's side. Mr. Smith, in common with otiier dairy- 

 men, thinks the price asked, £50, is too high, but at length dettrmines 

 CO make the investment, and secures the animal. He realizes that he will 

 have to wait three years until the IjuU's progeny begin to yield a profit, 

 but, being a good dairyman, knows that it is no use depending on other 

 farmers for dairy cattle. 



1910. — 40 cows, including 10 heifers by crossbred sire (averaging 

 200 lbs. fat at Is.), £400. (They were mated with pure 

 approved sire.) 

 1911. — 40 cows, including 10 heifers by crossbred sire (averaging 

 200 lbs. fat at Is. per lb.), £400. (Again mated with 

 approved sir© — best 12 calves reared.) 

 1912. — 40 cows, including 10 heifers by crossbred sire (averaging 

 200 lbs. tat at Is. per lb.), £400. (Again mated with 

 approved sire — best 12 calves reared.) 

 1913. — 40 cows, including 10 heifers by approved sire (these 10 

 heifers show an increase of 50 lbs. fat over previous heifers, 

 at Is. per lb., £2 10s. each— £25), £425. (Again mated 

 with pure sire.) 

 1914. — 40 cows, including additional 10 heifers by approved sire, 

 making 20 (showing an increase of 50 lbs. fat each, at Is. 

 per lb.), £450 (Again mated with pure sire.) 

 1915. — 40 cows, including another 10 heifers by approved sire, 

 making 30 head (showing an increase of 50 lbs. fat each, 

 at Is. per lb.), £475. 

 Six years have now elapsed since the approved bull was selected and 

 bought, and the returns have increased by £150. 



Six yeai's when old common sire was used, £2,400. 

 Six years from time of purchasing approved sire, £2,550. 

 Difference in favour of new bull as result of three years' service, 

 £150. 

 Comparison cost of providing every heifer with parent: — 



Cost of sire 



Interest, throe years, 5 per cent. 



Cost of keeping, three years . . 



Total cost at end of three years 

 Minus value at end of tliree years 



Act\ial Cost 



The cost of the pure sire was £35 10s., the cost of the mongrel £19 

 10s., being a difference of £16, allowing for the 30 heifers reared during 

 the three years. The heifers by tlie approved sire cost 10s. 8d. eacli 

 more than those sired by the common bull. When the comparisons are 

 made, the extra cost of providing the heifers with a good sire is 10s. 8d. 



