Feeding Iberian × Duroc cross pigs with crude glycerine: Effects of diet and gender on carcass and meat quality.
Ninety (45 castrated males and 45 gilts) Iberian × Duroc pigs were used in this study. During the finishing period (95-160 kg body weight, 74 days) animals received conventional feed (control G0) or the same feed plus 5% (G5) or 10% (G10) of crude glycerine to partially replace wheat. In general, neither the diet nor gender affected ultrasound, carcass or meat quality parameters. The G10 had lower values of cooking loss and a* than the G5 and G0 groups. The fatty acids, C10:0, C12:0 and C18:3, in intramuscular fat were lower in both glycerine groups. Polyunsaturated fatty acids and 18:2 decreased and C20:0 increased at the subcutaneous fat of G10 animals. Castrated males produced carcasses with higher backfat thickness and fat content. Castrated males had a higher SFA content in subcutaneous fat than females (P<0.001). In conclusion, up to 10% crude glycerine could be used in the Iberian × Duroc diet.
Department of Food Science and Technology, Veterinary Faculty, University of Murcia, Espinardo 30071, Murcia, Spain.
M
M
Egea
Department of Food Science and Technology, Veterinary Faculty, University of Murcia, Espinardo 30071, Murcia, Spain.
M B
MB
Linares
Department of Food Science and Technology, Veterinary Faculty, University of Murcia, Espinardo 30071, Murcia, Spain. Electronic address: mgarrido@um.es.
M D
MD
Garrido
Department of Animal Production, Veterinary Faculty, University of Murcia, Espinardo 30071, Murcia, Spain.
J
J
Madrid
Department of Animal Production, Veterinary Faculty, University of Murcia, Espinardo 30071, Murcia, Spain.
F
F
Hernández
D050154:Adiposity; D000818:Animals; D003296:Cooking; D003433:Crosses, Genetic; D004032:Diet / Q000662:veterinary*; D004041:Dietary Fats / Q000032:analysis / Q000378:metabolism; D005227:Fatty Acids / Q000032:analysis / Q000378:metabolism; D005260:Female; D063427:Food Quality; D005990:Glycerol / Q000008:administration & dosage* / Q000378:metabolism; D006801:Humans; D015416:Maillard Reaction; D008297:Male; D008460:Meat / Q000032:analysis*; D024510:Muscle Development; D018482:Muscle, Skeletal / Q000000981:diagnostic imaging / Q000254:growth & development / Q000378:metabolism*; D009919:Orchiectomy / Q000009:adverse effects / Q000662:veterinary; D012677:Sensation; D012727:Sex Characteristics; D013030:Spain; D050151:Subcutaneous Fat / Q000000981:diagnostic imaging / Q000378:metabolism; D034421:Sus scrofa / Q000254:growth & development / Q000378:metabolism*; D014463:Ultrasonography; D014867:Water / Q000032:analysis
D004041:Dietary Fats; D005227:Fatty Acids; D014867:Water; D005990:Glycerol; C029310:lard
Carcass; Crude glycerine; Iberian pig; Meat quality; Ultrasound