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Effect of some factors on yield and composition of milk in 5 successive lactations of Polish Black-and-White Lowland cows in Olsztyn province. III. Effect of calving interval, pregnancy interval and dry period



Effect of some factors on yield and composition of milk in 5 successive lactations of Polish Black-and-White Lowland cows in Olsztyn province. III. Effect of calving interval, pregnancy interval and dry period



Roczniki Nauk Rolniczych, B 95(1): 37-53



Records of consecutive 1st-5th lactations of 687 Polish Black-and-White Lowland cows were examined from the viewpoints of effect of calving interval, pregnancy interval and dry period on the lactation characteristics discussed in the 2 preceding abstr. The interval between the 1st and 2nd calvings had a highly significant effect on yield and composition of milk in the 2nd lactation.

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Accession: 000075356

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