ฉันรักแปลAbstractThis study was conducted to investigate the effects of catechins on reproductive performance, antioxidative capacity and immune function of gestating sows. A total of 60 cross-bred (Landrace × Large White) multiparious sows were blocked by body weight, parity and backfact and randomly allocated to 1 of 5 treatments: 0, 100, 200, 300, or 400 mg/kg catechins. Dietary treatments were imposed from mating to d 40 of gestation of sows. At farrowing, litter total born, born alive, dead, and normal-(healthy piglets, ≥0.85kg) and low-birth weight piglets (<0.85kg) were recorded. Within 3.00±0.50 days after farrowing litter size was standardized to 8.00±1.50 piglets within treatment. The piglets were weighed at birth (day 1) and weaning (d 28). Sows serum samples were obtained from blood samples collected on d 40 of gestation for analyses of glutathione peroxidase (GSH-px), superoxide dismutase (SOD), catalase (CAT), malondialdehyde (MDA), H2O2, nitric oxide synthetase (NOS) and nitrogen monoxide (NO). Our results showed that supplementation of catechins at levels of 200 or 300 mg/kg led to improvements in litter born alive (P <0.01) and piglet born healthy (P <0.01) and a decrease in stillborn (P <0.05) at farrowing when compared with the control. In comparison with the control, catechins catechins at any supplemental levels all enhanced the serum SOD (P <0.05) and CAT (P <0.01) activities of sows at farrowing but no obvious differences in the serum GSH-px and NOS activities were observed in this trial (P >0.05). Sows received 200 mg catechin per kg diets showed a reduction (P < 0.05) of the serum MDA level at farrowing compared to all other treatments. Sows received all the levels of catichin showed a reduction (P < 0.05) of serum H2O2 level compared to sows received the control diet on both d 40 of gestation and farrowing. Our results demonstrated that the catechins may be a potential antioxidant to increase the reproductive performance and antioxidative capacity of sows when it was added into diets during the early gestation.
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