I. Hap et L. Zeman, ANALYSIS OF RELATIONSHIPS BETWEEN ZN SUPP LY, ZN AND SOME OTHER CHOSEN NUTRIENTS RETENTION OF YOUNG-PIGS, Archiv fur Tierzucht, 38(2), 1995, pp. 199-208
The evaluation of regression and correlation analysis founded on the b
asis of results of 6 balance trials was used to describe the effect of
chosen indicators on zinc digestibility and zinc retention. The follo
wing models of equations for relationship between zinc and iron was ch
osen as the most acceptable: y=-0.304 +1, 822x - 0,071x(2) (y=Fe diges
tion in mg/W-0,W-75 x=Zn digestion in mg/W-0,W-75; I-k=0,690); y=-0,45
7 +1,859x -0,076x(2) (y= Fe deposition in mg/W-0,W-75 x=Zn digestion i
n mg/W-0,W-75; I-k=0,669). Relationship between mangan and zinc was ex
pressed by equation: y=0,930 +0,172x -0,001x(2) (y=Mn digestion in mg/
W-0,W-75, x=Zn digestion in mg/W-0,W-75; I-k=0,431); and between zinc
and potassium by equation: y=221, 1 -705,8x +618, 6x(2) (y= Zn retenti
on in %; x=K intake in g/W-0,W-75; I-k=0,405). The main effect on zinc
deposition in the models of multiple regression was found by the indi
cators of zinc intake. The whole variability of zinc deposition was in
fluenced by the zinc intake more than by 70%. Besides the effect of zi
nc intake, the effect of calcium intake on the zinc deposition was obv
ious. This indicator influenced the whole variability from 7,35 to 27,
63% by the models of multiple regression.