Show LI ab t I 1 P lip I 1 MORE MOKE TESTING OF COWS IS NEEDED nine pertinent dairy improvement pro pointers given more afore testing of dairy cows Is needed for economical production according t ti jos W linn ann extension dairyman kansas slow slate agricultural college in stressing the value of dairy herd improvement provet pro tient work what such work means to dalry dairymen inen the claine sums up tip under nine pertinent dairy improvement points it brings about it greater realization of the difference in relative ability of various cows within our dally daily herds it the economy in feelis fe feeding elir cows its as individuals seeing that the hotter better cows are liberally fed rood good cows are fed on pasture and that the principles of fe etling are made coin common nion know ledge it emphasizes an appreciation of n the fact that sires vary in their ability to 1 1 hut t manure and rotation to reduce cost of dairying not all the virtues of dairy forming farming are wrapped up in good herds herd of well fed cows successful dairy farming requires renol res the constant practice of 0 crop rotation including a legume I 1 in order to supply the herd with the proper feeds much manure Is produced deuced annually which on well managed farms Is put back in the SOU for the benefit of succeeding crops were it not for rotation of crops and manure the crop yields on our dairy farms would wool not be what ahat they are today in this connection some interesting data Is fival available lable from the blisso missouri url station corn grown continuously on the same land arid without manure or other fertilizer averaged 2119 bushels per acre over a 30 year period in a rotation of torn corn oats find and clover ath alth out manure or other fertilizer the corn averaged bushels per acre tta in a three dear rotation of corn oats and clover with manure the corn averaged bushels per sere acre over a 30 year period manure and rotation with legumes are valuable means of reducing the costs of producing milk speed of separator Is cause of variations by JAMES W LINN extension dairyman kansas state slate agri cultural college Col lK causes most common in bringing about a variation in ili the test of cream are speed of the separating machine temperature of the milk and amount of flush water used cream from a normal turning of the separator will result in ili a 4 per cent tat fat while a fourths normal speed will deliver cream of arr 35 1 per cent fat the lower the temperature of the milk the lie higher will be the per cent of rat fat in the cream milk at degrees P F will III produce a 24 per cent cream at 80 degrees F a 30 per cent cream and at 75 degrees F the cream delivered will be 41 43 per cent As the volume of fat separated Is lowered any increase lo in the of flush water will cause it a more rapid lowering of the tat fat la in the cream shortage of water and feed works hardship from feed find water only can a cow make milk shortage of either works a hardship on the good cow half titled filled cows produce half filled polls palls feed the good dalry dairy cow during the 45 day short feed period enough roughage and grall to keep up production so that it will not drop below the normal drop due it to the advancing lactation period it Is tremendously difficult to brant brim back the milk now flow due to decreased feed supply after it hats fallen below the normal and ana natural drop that Is always expected after the cow hits has been in milk some smile time the better auy ay Is to feed up tl best producing cows in herd on enough rood good feed to maintain a profitable and abundant milk yield water for dairy cow A diali who lias has had experience only with cattle tor for beer beef will be astonished toni Lonis shed lied if lie he undertakes to carry the water for or a day to a high producing dairy cow it tench him a lesson however that would be valuable if he ener eer decided it to keep dairy stock the cow requires a large amount of water indeed because the alie milk itself a considerable amount anti and further a high ln gli mill ilag cow is of necessity a heavy tes fed animal |