Effect of placenta feeding on mineral composition of plasma and milk in sows and growth of piglets
2006
Lee, S.D.(Kagoshima Univ. (Japan)) | Sonoda, T. | Hasegawa, N. | Fukunaga, R. | Fujishiro, T. | Harada, H. | Song, Y. | Hidaka, R.
The objective of the present study was to investigate the variations of the mineral composition in plasma and milk of sows fed placenta and on growth of piglets. First experiment (Exp. 1) was designed with experiment (Ex: with placenta) and control (Ct: without placenta) depending on feeding placenta or not. Second experiment (Exp. 2) was designed with conditions (fresh: Fp or cooked: Cp) and weights (900g: W 9 or 1800g: W18) of placenta according to 2 x 2 factorial design. In plasma, calcium content on Day 1 (D01) and Day 5 (D05) in Exp. 1 were higher (P0.05) in Ex than in Ct. In milk, magnesium content on Day 15 (D15) and potassium content on D01 and D05 in Exp. l was greater (P0.05) in Ex than in Ct. In plasma, calcium content in Exp. 2 was greater in Fp than in Cp on D0I (P0.05). In milk, calcium content was greater (P 0.05) in Fp than in Cp on D03, D16 and D20 in Exp. 2. Daily gain of piglets on DG05 (The difference between body weights on D05 and on D01), DG20 (The difference between D20 and D15) and total daily gain (TDG, the difference between D20 and D01) in Exp. 1 was higher (P0.01) in Ex than in Ct. Daily gain was greater (P0.01) in Fp than in Cp on DG03 (The difference between D03 and D01), DG08 (The difference between D08 and D03) and DG12 (The difference between D12 and D08) in Exp. 2. The results indicate that fresh placenta when supplied as feed affected the mineral compositions of plasma and milk in sows and daily gain of piglets.
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