Olfactory evaluation of boar taint: effect of factors measured at slaughter and link with boar taint compounds
| Autor: | Sam Millet, Bart Ampe, Frank Tuyttens, Lynn Vanhaecke, Nadine Buys, Jella Wauters, Steven Janssens, Marijke Aluwé, Evert Heyrman |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Male
0301 basic medicine boar taint endocrine system Indoles Meat Boar taint androstenone Sus scrofa pre slaughter factors Prevalence Biology SF1-1100 boar taint compounds 03 medical and health sciences chemistry.chemical_compound Animal science Belgium carcass traits Animals media_common.cataloged_instance Animal Husbandry European union pre-slaughter conditions media_common urogenital system 0402 animal and dairy science Androstenone 04 agricultural and veterinary sciences 040201 dairy & animal science Skatole Animal culture Smell 030104 developmental biology Castration Adipose Tissue indole chemistry skatole Androstenes Animal Science and Zoology Skin lesion season Abattoirs Lean meat |
| Zdroj: | Animal, Vol 11, Iss 11, Pp 2084-2093 (2017) |
| ISSN: | 1751-7311 |
| Popis: | There is a commitment by the European pig sector to ban surgical castration of male piglets in the European Union in 2018. One alternative to castration is to raise entire male pigs, with an increased risk of boar taint. A field study was performed to 1) evaluate inter- and intra-farm variation in boar taint prevalence, 2) investigate factors measured at slaughter influencing boar taint and 3) evaluate the relationship between sensorial scoring by a trained panel and the concentration of boar taint components. From 34 farms, neck fat samples were collected from all entire male pigs in at least 2 slaughter batches per farm (78 batches; 9167 animals). In addition to olfactory boar taint analysis, data was also collected on fresh skin lesions (score 0-3) at the slaughter line, slaughter weight, lean meat percentage, duration of transport, time spent in lairage, total delivery duration, day length, shortening of days and outdoor mean temperature. Using the hot iron method, neck fat samples were scored (8-point scale) for boar taint. Average boar taint prevalence (score ≥3) was 5.6 ± 2.5% and the mean difference between the maximum and minimum prevalence per farm was 4.3 ± 3.2%. Androstenone (AND), skatole (SKA) and indole (IND) concentrations were measured for a subset (n= 254) of the samples. According to binomial univariate mixed models, entire male pigs with a higher skin lesion score had higher odds of having boar taint (P=0.031), as did fatter entire male pigs (P |
| Databáze: | OpenAIRE |
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