Sivapirunthep, Panneepa
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Preferred name
Sivapirunthep, Panneepa
Alternative Name
Sivapirunthep, P.
Main Affiliation
Email
panneepa.si@kmitl.ac.th
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Item type:Publication, Meat characteristics from four different cutting parts of Cherry Valley duck(2018-08-14); The objective of this study was to investigate the duck meat characteristics in 4 main parts: breast, fillet, leg, and thigh. A total of 30 Cherry Valley ducks were used in this study. They were slaughtered at the age of 42 days. Carcasses were cut and collected the boneless and skinless of breast, fillet, leg, and thigh for measuring meat characteristics. The results showed that fillet and leg had the longest sarcomere length at 6, 12, and 24 hour post mortem (P<0.05). The highest pH was from leg and the lowest pH was from breast and fillet (P<0.01). The cooking loss percentage of breast was the highest while the lowest was from leg (P<0.01). Thigh and leg were tougher than breast and fillet. Shear force value negatively correlated with sarcomere length at 24 hour post mortem and with pH but positively correlated with L∗ value. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Influence of charolais sires and seasons on growth performance and carcass characteristics in crossbred steers(2018-12-01); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, The effect of different forms of selenium on fatty acid composition in broiler meat(2018-12-01); The effects of selenium (Se) in diets on fatty acid composition, lipid indices, and enzyme indexes for desaturase, elongase, and thioesterase in Pectoralis muscle of broiler chicken were investigated. A total of 360 one-day-old chicks (Arbor Acres) were randomly assigned to 2 treatments with 6 replicates, giving 30 birds per replicate. The birds were fed ad libitum in 3 feed phases of giving 2 dietary treatments comprised 0.3 ppm of inorganic Se from sodium selenite (Na-Se) and 0.3 ppm of organic Se from Zn-L-selenomethionine (Zn-L-SeMet). At 39 days of age, one bird from each treatment was randomly selected and slaughtered. Pectoralis muscles were collected and stored at -40 °C before fatty acid composition analysis. There were not significantly different between organic and inorganic selenium treatment on fatty acid composition, lipid indices, and enzyme indexes (P>0.05). However, the results demonstrated that Zn-L-SeMet had slightly lower I/A (6.7%) while had higher h/H (4.4%) and MUFA (8%) than Na-Se. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Effect of dietary organic and inorganic selenium on carcass composition and meat characteristics of broiler chickens(2018-12-01); The effects of organic Zn-L-selenomethionine (Zn-L-SeMet) and inorganic sodium selenite (Na-Se) on broiler chickens'carcass composition and meat characteristics were compared. The 360 one-day-old broiler chickens subjected to a 3 phases feeding program with basal diets of corn-soy. The chickens were divided into 2 groups supplemented with 0.3 ppm of Zn-L-SeMet or Na-Se throughout 37 days of raising period. Each treatment consisted of 6 replicated with 30 male broilers. Birds were deprived of feed for 12 h and weighed prior to slaughter. Three birds from each treatment replicate were sacrificed by cervical dislocation before carcass compositions were measured. Breast muscles were collected and then determined meat characteristics. Carcass composition was not affected (P>0.05) by different selenium sources. Chicken fed Zn-L-SeMet had higher cooking loss and lower color of L* value compared to those fed with Na-Se. Shear force value of Zn-L-SeMet was significant lower than Na-Se at 1 day postmortem but the effect of selenium sources was not significant later than at 4 day post mortem. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Cholesterol content and fatty acid composition in Longissimus dorsi muscle of purebred and crossbred pigs(2018-12-01); The fat and cholesterol contents, and fatty acid composition in Longissimus dorsi (LD) muscle differ between purebred and crossbred pigs was determined. Duroc purebred (D, n=10), two-way crossbred (Largewhite x Landrace; LWLR, n = 10), and three-way crossbred [Duroc x (Largewhite x Landrace); DLWLR, n=10] pigs were used in this study. Each group consisted of 2 genders (5 barrows and 5 gilts). All pigs were reared under the same housing and feeding conditions for 6 months until slaughtered at 110 ± 5 kg live weight, following which, LD muscle was collected from the left side of each carcass for subsequent analyses. The results showed that D had higher (P<0.01) fat percentage than LWLR and DLWLR. Neither pig group nor gender affected cholesterol content (P > 0.05). For fatty acid composition, D presented highest concentrations of C14:0, C16:0, C16:1, C18:0, C18:1n9c, C18:2n6c, C18:2n6c, C20:1, SFA (saturated fatty acid), MUFA (monounsaturated fatty acid), and PUFA (polyunsaturated fatty acid) than those recorded in samples obtained from DLWLR and LWLR (P<0.01). DLWLR had significantly higher concentrations of C16:1, C18:1n9c and MUFA (P<0.05), with a tendency of higher concentration of C16:0, C18:0, C18:2n6c, C20:1, SFA, and PUFA than LWLR (P<0.1). The ratio of unsaturated to saturated fatty acid (P/S) was more favorable in LWLR compared with those of D and DLWLR (P<0.01). There was a significant group x gender interaction for the concentration of C23:0 (P<0.05). In Duroc purebred pigs, higher amount of C23:0 was observed in gilts than that in the barrow. However, barrow of DLWLR showed higher C23:0 than the amount recorded in the gilts. Fat percentage positively correlated with the concentrations of C14:0, C16:0, C16:1, C18:0, C18:1n9c, C18:2n6c, C20:1, C23:0, SFA, MUFA, PUFA, and P/S (P <0.01) but negatively correlated with C23:0 (P<0.05). - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Effect of ractopamine on physicochemical characteristics and collagen solubility in finishing pigs(2018-08-14); ; Chaweewan, KamonThe objective of this study was to investigate physicochemical characteristics and collagen solubility of pigs fed with dietary ractopamine (RAC) during finishing period. Thirty of three-way crossbred pigs (Large White × Landrace × Duroc) with an initial bodyweight (BW) of 18.0 ± 0.5 kg were randomly assigned to one to three dietary RAC inclusions (0, 20, or 40 mg/kg) fed during finishing period (60-100 kg BW). Each group consisted of five gilts and five barrows. After 109 day of raising period, all pigs were slaughtered at the average weight of 100 kg. Longissimus dorsi muscle (LD) was taken from each carcass after overnight chill and analyzed for physical characteristics, chemical composition, and collagen solubility. The LD from pigs fed 40 mg/kg of RAC had lower a∗ value (p < 0.01) than others. Pigs fed with 40 mg/kg of RAC had higher Warner-Bratzler shear force (p < 0.05) than pigs fed without RAC. Pigs fed with dietary RAC had lower glycogen content than control (p < 0.01). While other chemical compositions and collagen solubility of LD were not affected by dietary RAC (p > 0.05). Gilts had larger muscle fibers (p < 0.01), lower glycogen content (p < 0.05), higher content of insoluble collagen (p < 0.05), total collagen (p = 0.054), and collagen solubility (p = 0.054) than barrows.