Show BIG ESSENTIAL FOR HEN FLOCK violet rays foes of rickets and other ills violet rays in direct sunshine aid iii in the lie assimilation or of calel calcium and tire foes of rickets and other ills to which lesh flesh Is heir while this a familiar story to mair poultry keepers it Is not generally nene rally known hint flint not till all sunlight has equal value that in fact winter sunshine in northern latitudes lias 1119 few or ar no violet rays the factor that cures or pre prevents V ent 8 the rickets discussing the practice of some poultry denof shooing their nocks flocks at toils time of year into bright sunshine frederick ii blutt poultry specialist 1 of the agricultural ral ext extension ision service of the university of minnesota says this may be of value to stock kept for breeding but toes does not pire give tile the birds much it if any more of the factor than they were petting getting inside tile the lien hen house experiments experiment have shown that in latitudes even farther south than minnesota the amount of ultra violet rays of the most valuable wave length Is too small in winter to be of much importance after the first of march tile value of the sunlight increases rapidly and by april and may alay it lias has a rickets banishing potency about nhoun eight times as great as in january the merits of various glass substitutes have been widely advertised the last few years while it is quite true that many of these will transmit when now new more ultra violet rays than window glass the fact remains that even the best of them cannot transmit bu such eh rays when there are none to transmit neither will the breeding flock get its full requirement of the valuable factor if turned outdoors on the brightest lays days in ili february but tin an ample supply of tills this factor Is a prime essential if good hatel hatches les are to be obtained in ili the early spring the only safe plan Is to feed a good brand of cod liver oil at the rate ot of 2 per cent in the mash ily by april 1 I 1 tit at which time the sun Is again giving full fall value for the money feeding of the oil may tie be safely discontinued |