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This study investigated the effects of Saccharomyces cerevisiae fermentation product (SCFP) on nutrient digestibility and ileal digesta characteristics of cannulated growing pigs fed corn- or barley-sorghum-based diets. Eight ileal-cannulated barrows randomized in a double 4 × 4 Latin square design were fed four diets in a 2 × 2 factorial arrangement, in which the first factor was diet type (corn- or barley-sorghum-based diet), and the second factor was dietary SCPF treatment (supplemented with or without 5 g/kg SCFP). The cannulated barrows (35.63 ± 0.76 kg) fitted with a T-cannula in the terminal ileum were housed in metabolism cages in an environmentally controlled room. The results show that compared with the corn-based diet, the barley-sorghum-based diet reduced the apparent total tract digestibility (ATTD) and apparent ileal digestibility (AID) of crude protein (CP), the AID of all amino acids, amylase activity, trypsin activity, and pH in the ileal digesta of growing pigs (P 0.05). In conclusion, compared with the corn-based diet, the barley-sorghum-based diet reduced the activities of digestive enzymes and the digestive absorption of CP and amino acids in growing pigs. Dietary 5 k/kg SCPF supplementation had beneficial effects on the energy and ADF digestibility of growing pigs. However, the nutrient digestibility and ileal digesta characteristics of the pigs were unaffected by diet type × SCFP interaction.

This study was conducted to investigate the effects of 2 selenium (Se) sources and 2 vitamin E (VE) levels in gestating and lactating diets of sows on Se status and antioxidant status of their progenies at farrowing and 21-d postpartum. The study was conducted in a 2 × 2 factorial arrangement of Se sources (0.30 mg/kg diet of sodium selenite or Se-enriched yeast) and VE levels (30 or 90 IU/kg diet). A total of 234 multiparous sows were bred and started on 1 of 4 dietary treatment according to parity and body condition, and then maintained on feed until 21-d postpartum. At farrowing and at weaning, 8 piglets per treatment (1 piglet/litter) were selected on similar body weight and sampled to ensure 6 piglet samples per treatment. The Se content was determined in serum, whole blood, umbilical cord blood and tissues, whereas antioxidant status of liver and serum were determined by analyzing the total antioxidant capacity (T-AOC), activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px), and glutathione (GSH) and malondialdehyde (MDA) contents. The newly-born piglets from sows fed organic Se had higher Se contents in kidney (P 0.05) expect for hepatic Se content of newborns and serum Se content of 21-d-old piglets (P

This study aimed to evaluate the effects of 2 dietary selenium (Se) sources and 2 vitamin E levels during gestation and lactation on antioxidant status and reproductive performance in multiparous sows. The study was conducted in a 2 × 2 factorial arrangement with sodium selenite or Se-enriched yeast at 0.30 mg Se/kg diet each as the Se sources and vitamin E at 30 or 90 IU/kg. A total of 234 multiparous sows were bred and started on 1 of 4 dietary treatment according to parity and body condition, and then maintained on feed until 21-d postpartum. Serum samples were collected from 6 sows per treatment at d 30, 60 and 90 of gestation (G30, G60 and G90) and d 11 of lactation (L11) for the analysis of Se level and antioxidant status, i.e., total antioxidant capacity (T-AOC), the activities of superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), glutathione (GSH) content and malondialdehyde (MDA) content. Colostrum and 11-d milk were collected for the analysis of Se, antioxidant status and milk composition. Sows fed organic Se produced more live pigs (P 0.05). In conclusion, sow fed organic Se had improved the antioxidant capacity in serum and milk, the milk composition, and the number of pigs weaned compared with sow fed inorganic Se. However, antioxidant status and reproductive performance were not improved when vitamin E was added at 90 vs. 30 IU/kg, and no Se source × vitamin E level interaction was detected. Organic Se or elevated vitamin E in sows diet did not affect major parameter of sow reproduction.

Two experiments were conducted to evaluate the encapsulation of palm oil by homogenizing and spray drying on the diet nutrient digestibility, growth performance and serum biochemical indices of piglets. In experiment 1, six weaning barrows (8.0 ± 0.2 kg) were fed in a 3 × 3 Latin square design to test the apparent total tract digestibility (ATTD) of nutrients in diets with different oils: soybean oil (SO), palm oil (PO), or encapsulated palm oil (EPO). In experiment 2, piglets from 48 pre-weaning litters (age 11 days, weaned at day 22, 4.1 ± 0.5 kg) were randomly allotted to 3 dietary treatments (same as in experiment 1) to investigate the effects of dietary treatments on the growth performance and serum biochemical indices of piglets. The digestible energy (DE), metabolizable energy (ME), and ATTD of gross energy (GE), organic matter (OM), dry matter (DM), ether extract (EE), calcium and phosphorus in the EPO group were higher than those in the PO group (P