. Southern pork production. ercentage of protein. Cowpeas,alfalfa, peanuts, velvet beans, and other protein feedshave special value. A little tankage or meat meal is agood thing for brood sows at all times, and especiallyduring pregnancy. Care should always be taken to seethat too much corn is not fed for too long a time duringpregnancy. The same may be said of other highly car-bonaceous or fattening feeds. Abortion.—We frequently have cases of abortion orslinking of pigs. This may be brought on by severalthings. It may be due to a contagion or disease. It isgenerally the result of some accide
. Southern pork production. ercentage of protein. Cowpeas,alfalfa, peanuts, velvet beans, and other protein feedshave special value. A little tankage or meat meal is agood thing for brood sows at all times, and especiallyduring pregnancy. Care should always be taken to seethat too much corn is not fed for too long a time duringpregnancy. The same may be said of other highly car-bonaceous or fattening feeds. Abortion.—We frequently have cases of abortion orslinking of pigs. This may be brought on by severalthings. It may be due to a contagion or disease. It isgenerally the result of some accident, such as a kick froma horse or mule, from over-heating, or from rough han-dling otherwise. It may also be due to something eaten. SWINE MANAGEMENT 169 as many poisons occur in certain feeds that are capableof producing premature birth when sufficient quantitiesare consumed. When abortion takes place during thelater stages of pregnancy, some difficulties, may be ex-perienced in handling the surplus of milk in the Winter farrowing house on farm of N. H. G. Balfour inNorth Carolina. In most cases this milk will be absorbed without trouble,but in other cases some treatment will have to be givento check and dry up the secretion. In some instancesabortion or premature farrowing becomes constitutionaland chronic, when the best thing that can be done is tofatten the sow for pork. Farrowing.—Prior to the delivery of the young certainchanges take place with the mother, which indicate theapproaching event. The causes of these changes arenone too well understood, but they are purely physio-logical and normal, and are probably brought aboutthrough the agency of harmones or internal secretions. 170 SOUTHERN PORK PRODUCTION Among other changes the udder becomes congested andswollen. At first the secretion is waxy, but it later de-velops into colostrum and then to normal milk. Justprior to delivery the belly sinks and seemingly vulva becomes congested and swollen an
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