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Swine Reproduction as Affected by Restricted Quarters

University of Missouri

Abstract

Conclusions: What conclusions then may we draw from these data? In the first place, we are convinced that if the ration is adequate, at least one generation can be reared in restricted quarters. We are also convinced that the nutritional requirements of brood sows cannot as yet be precisely defined. We have not ascribed our failures to vitamin deficienies. It seems, also, that the absolute quantity of minerals should be sufficient, though their ratio to each other may have been unfavorable. We are unable to express an opinion concerning obscure minerals, such as manganese.

If we turn to the rations again, we can say that we failed when alfalfa meal was excluded from the ration. We also failed when liver meal was included in the ration. During one year we had rations precisely alike, except for the mineral content. We succeeded with one mineral mixture and failed with the other.

¹ In co-operation with the Bureau of Animal Industry, U. S. D. A.