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Breeding Productivity features in sows of the Polish Large White breed and of the Polish White Lop-eared breed, depending on the sows date of birth, on the consecutive number of the litter she came from, as well as on her age when she farrowed for the first time, and on the period of break between her consecutive farrowings



Breeding Productivity features in sows of the Polish Large White breed and of the Polish White Lop-eared breed, depending on the sows date of birth, on the consecutive number of the litter she came from, as well as on her age when she farrowed for the first time, and on the period of break between her consecutive farrowings








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Related references

Breeding productivity features in sows of the Polish White breed and of the Polish White Lop-eared breed, depending on the sows date of birth, on the consecutive number of the litter she came from, as well as on her age when she farrowed for the first time, and on the period of break between her consecutive farrowings. Rozprawy 44, 1976

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