HORSES 1633 



(5.5 lbs.). Two experiments were made lasting 78 and 43 days, and tlie total 

 number of horses employed was nine. 



The final result was in favour of the potato flakes, and it is concluded 

 that for feeding horses i kg. (2.2 lbs.) of flakes containing 980 grms. 

 (1.9 lbs.) of dry matter will easily replace i kg. of ordinary barley. 



VII. Barley and cooked potatoes. — The writer has show^n experimentally 

 that in the fattening of pigs i kg. (2.2 lbs) of ordinary barley can be re- 

 placed by 0.9 kg. (2 lbs.) of the dry matter of cooked potatoes. 



In the experiment with horses the two forages were given in the above 

 proportion. The potatoes were cooked everv' three days and at least four 

 rations of them were given daily. Except in one case all the eight horses 

 ate these rations willingly. Two experiments were made lasting 71 to 80 

 days, and the daily ration contained 2 to 3 kgs. (4.4 to 6.6 lbs.) of dry 

 matter. 



The two groups gave the same result. Accordingly the conclusion is 

 drawn that in the feeding of horses a ration of 900 grms. (2 lbs.) of the dry 

 matter of potatoes has the same forage value as i kg. (2.2 lb.) of barley. 



VIII. Mixture of oats and barley and mangels. — This mixture was re- 

 placed partly by mangels and partly by carrots in the proportion i kg. 

 Mixture : i kg dry matter of the roots 8 to 20 kgs. (17.6 to 44 lbs.) of roots 

 ■were fed per head per day. Four experiments v/ere made with 17 horses, 

 lasting 50 to 89 days. 



The experiments proved that well cleaned roots can be given at the 

 rate of 20 kgs (44 lbs ) per head per day without injury to the horses. 

 I kg (2.2 lbs.) of the dry matter of the roots has the same nutritive value 

 as I kg. (2.2 lbs.) of the mixture. 



The experiments were intended also to discover the quantity of food 

 required by horses. The quantity of forage administered was determined 

 daily, and then from measurements of the live weight of the horse, it was 

 determined whether the ration was suitable for the work to be done. The 

 nutritive value of the different rations was expressed in forage units. In 

 addition the content of digestible protein in each ration was determined. 



The results show that the number of forage units and the necessary quan- 

 tity of digestible protein vary according to the work done b}^ the horses. 

 All the experiments have proved however that the ration is completely 

 utilised if it contains 75 to 80 grms of digestible protein per forage unit. 

 This, the writer terms " the minimum requirement " of digestible protein 



Based on these observations the following relative figures have been 

 established for horses weighing about 600 kgs. (12 cwt.). 



Kind of work done by Number of forage Quantity of digestible 



the horses. units required protein required 



lyight 7 to 8 500 to 600 gms. 



Medium 8 to 10 600 to 800 gms. 



Heavy 10 to 12 800 to 1000 gms. 



Ver}' hcavj- , more than 12 more than icoo gms. 



