Show SUNLIGHT EFFECT ON DAIRY CALVES T W gullickson and C rl eckles make tile hie following report in the journot journal of dairy science pour four helfer heifer calves were placed placa d on an experiment at from froin abree to seven days of ago age two were nere confined in a completely dark atil ventilated box stall fl and I 1 ITI allowed in ami up opeil en 0 oty gy at night the other oilier two etero ere allowed t kiy run out of doors luring during the day and con confined only at nig night it the rai ration tion lion for nil all animals was identical the lie grain portion consisting of corn meal corn gluten feed wheat bran and linseed oil and liay lay of 0 fair to poor quality forming lite roughage linge the animals were el glied every ten days and the height nt at the top of the alie withers measured every thirty days during the two year period the animals in both lots continued normal in all outward respects during tile the test all helfers came in heat beat when loss less than a year of age tile the two in the hie sunlight group were accidentally ci bred nt at the first heat beat period one dropped a normal full time calf and tho the other a small slightly deformed calf with both eyes present but blind this condition was not thought to be due to tile the ration one hearer in tile the no DO sunlight group was tired bred nt at about sixteen inon llis of and dropped a normal calf the other heifer belfer of this group was found to have malformed reproductive organs which prevented con conception ceplon but dai not hinder oestrum from these data it Is concluded that the he absence of sunlight was with walthou oil effect upon calves kept in darkness from the age ot of one week to t two w 0 years normal reproduction also occurred |