Show r P Tj SUNLIGHT EFFECT ON DAIRY CALVES CALVEST T W and C H it I 1 male make the following report In the Jour Journal Journal nal Dal of ot Dairy Science 1 I elfer calves les were ere pla placed ed on OD ODon onan onon on an experiment nt fit from froni three to seven seen days of nee Two were sere ere COD confined fined In a completely lark darl well ventilated box and nil allowed owed In the open only oDly nt at night 1 the he other t two tso 0 were sere ere allowed to run out of ot doors during the day and confined only nt ot night The rn ra lion for tor nil all animals was Identical the grain portion consisting of ot corn cornI cornmeal cornmeal cornmeal meal corn coro gluten feed teed wheat bran braD branand and linseed oil oU meal 3 1 1 1 and I timothy hay of ot fair to poor Quality forming the roughage The animals were weighed every ery ten teD days and the height at the top of ot the withers mens meas measured thirty days during the two year i the animals In ID n both lots continued normal In nil all outward respects luring the test All heifers helfers came In heat when less than a 0 sear vear of ot age nee he two In to the sunlight group were nc ac accidentally accidentally bred at the first heat hent pe pe- period period clod One dropped a 0 normal full tull time calf calt and the other a small mall slightly I li deformed calf colt with t Loth eyes eves eJ cs present but blind This condition was no not thought to be due to the ration One On was wa helter heifer In the no sunlight group croup bred at about sixteen months of ot age and dropped a n normal calf calt The other helfer of ot this group croup was found to base bave malformed reproductive organs org which h prevented conception but t not hinder oestrum I rom these data It Is concluded that the absence of ot sunlight was without effect upon cah calves es kept In darkness from the tb age ace of ot one week weel to two years Normal formal ormal reproduction also oc or occurred occurred |