Variations in glucose and protein contents of milk in placenta-fed sows
2006
Lee, S.D.(Kagoshima Univ. (Japan)) | Sonoda, T. | Hasegawa, N. | Fukunaga, R. | Fujishiro, T. | Harada, H. | Hidaka, R.
The objective of the present study was to investigate the effect of placenta as feed on protein and glucose in milk of sows and on growth of piglets. The experimental animals used were total of 40 sows and 413 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: W9 or 1800g: W18) of placenta according to 2 x 2 factorial design. Glucose content in milk in Exp. 1 was higher (P0.05) in Ex than in Ct on Day 1 (D01) and Day 5 (D05). Glucose content in milk in Exp. 2 was greater (P0.01) in Fp than in Cp on D01 and Day 3 (D03). It was not different (P0.05) by weights over the days. Protein content in milk in Exp. I was higher (P0.05) in Ex than in Ct on D01. Protein content in milk in Exp. 2 was greater (P0.01) in Fp than in Cp on D01. It was not different (P0.05) by weights over the days. In Exp. 1, daily gain (DG) of piglets on DG05, DG20 and total daily gain (TDG) was higher (P0. 01) in Ex than in Ct. In Exp. 2. DG of piglets was greater (P0.01) in Fp than in Cp from DG03 to DG12 and TDG. DG and TDG of piglets were not affected (P0.05) by weights over the days. These results indicate that DG of piglets was improved because the glucose and protein content in milk increased after fresh placenta supplied as feed to sows.
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