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1 Medycyna Weterynaryjna

1 1990

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Zastosowanie wskaźnika korowego kości długich do oceny ich rozwoju w warunkach zróżnicowanego żywienia świń

100%

Wyczolkowski M. , Langenfeldt M. , Skawina A. , Kochan E. , Owczarek D.

tom 46

nr 06

The objective of the work was to observe changes in the cortical index of long bones of swines receiving different quantitative levels of food components. The bones of 3 groups of 38 animals receiving 80%, 100% and 120% of the normal daily dosage were analyzed. There were also distinguished 3 different age groupsanimals which were 5, 6 and 7 months old and compared to mean arithmetic values of the cortical index between each group. The mean index values between the different age groups showed a tendency to increase, but differences in the values were statistically significant only in 2 of 6 examined bones. At the same time a 20% diminution of food intake caused a decrease in mean index values in 4 of 6 examined bones. We hardly observed (only in 2 bones) any influence of overfeeding on cortical index values. The above mentioned data indicatte the close correlation between the quantitative levels of food components and bone mineralization and proves that the cortical index can be regarded as a suitable simple method for the assessment of the degree of mineralization of bone tissue.