| Three exPeriments were conducted to st'Udy the effect of prevention of pigIet anemia byadding iron amino acid chelate in sow diet.Experiment l, preventing ofpiglet anemia by adding different iron source in sow dietNine sows selected identical breed, the same parity and similar date of parturum werebred and assigned to three treatments. Each tTeatment was fed respectively diet supplementedwith l50mg/kg Fe of ferrous sulfide, iron glycine chelate and iron lyscine chelate during 4weeks prepartum and 3 weeks postpartum. The study judged the effect of different ironsources in sow diet on preventing of anemia of piglet by daily gain, contents of tissue andorgan Fe and the parameters of haematology of piglet. ResultS showed that dietary ironsources have significan difference on body weight of newbom piglet (p<0.05), and the birthweight of iron glycine chelate grouP was lower than that of ferrous sulfide and iron lyscinechelate group at birth, but daily weight of piglet among different treatment groups was notsignificantly different during l-3 weeks (p>0.05). Iron amino acid chelate can significantlyimprove iron concentration of tissue and organ of newborn piglet, and in kidney, placenta andhewt, iron concentration of iron amino acid chelate groups was significantly higher than thatof FeSO4 group (p<0.05); Liver and spleen iron concentration of Fe-Gly group weresignificantly higher than FeSO4 group and Fe-Lys group (p<0.05); But iron sources have nosignificant influence on thighbone iron concentration (p>0.05). The Hb value of pigletsupplemeated with FeSO4, Fe-Gly and Fe-Lys was 7.65, ll.l5, l0.82 g/l00ml b1oodrespectively at birth, the Hb value of piglet in Fe-Gly and Fe-Lys groups is significantlyhigher than that of FeSO4 group (p<0.05), and the Hb concentration keeps still over8mg/l00m1 blood and can meet need of newborn piglet, but the Hb concentration of group ofFe-Gly and Fe-Lys separately dropped to 8.83 g/l00ml was not significantly lower than thatof FeSO4 grouP injected dextran ferrous (p>0.05) and 7.07 g/l00ml was significantly lowerthan that of FeSO4 group injected dextran ferrous (p<0.05).Experiment II, preventing of piglet anemia by adding different iron level in sow dietIron glycine chelate that suPplemented with 75mthe and l50mg/kg dietS (Fe content)were conducted to study the effect of preventing of piglet anemia by adding different ironlevel in sow diet. Six sows selected idefltical breed, the same parity and similar date ofpartUrum were bred and assigned to tWo treatments. Results showed that dietary iron levelshave no significant difference on body weight of newborn piglet and daily weight of pigletamong different treatment groups during l-3 weeks (p>0.05); Iron concentration of tissue andorgan of newborn piglet increased with increasing of dietary iron level, and kidney and- 3 -muscle iron concentration were improved significantly (p<0.05); Deposition of Fe in tissue and organ of 21-day old piglet for group 'of lower Fe level was better comparing with group of higher Fe level; Influence of higher level iron glycine chelate is better than that of lower level from synthesizing body weight of newborn piglet, the Hb concentration of 1-day old piglet and trend of change of the Hb concentration of 7-21-day old piglet.In experiment III, preventing of piglet anemia different time adding iron glycine chelate in sow dietIn this experiment, iron glycine chelate of equal iron level (150mg/kg diet, Fe content) was added during different date of sow gestation to compare the effect of preventing of piglet anemia different time adding iron glycine chelate in sow diet. Treat 1 is a way of Fe supplemented in interval, that is, sows were fed iron glycine chelate at d 48~76 of gestation to lead to sum to 28 days during prepartum, then stop feeding diet containing iron glycine chelate, and alter into the normal diet up to sow partum , and supplement with diet containing equal quantity iro... |
PDF Full Text Request