|
|
|
|
|
| Höinghaus, Kathrin; Bussemas, Ralf; Renger, Anja; Meier-Dinkel, Lisa; Mörlein, Daniel; Weißmann, Friedrich. |
| Fattening of entire male pigs is a useful alternative to piglet castration but the problem of boar taint is still unresolved. The object of the present study was to test the effect of (i) two different terminal sire lines (Danish Duroc, Du vs. Piétrain, Pi) and (ii) two different feeding strategies (without (-) vs. with (+) raw potato starch prior to slaughter) on the prevalence of boar taint in organic pork production. The results show that entire male growing-finishing pigs of Du origin have significantly higher androstenone concentrations in shoulder back fat than those of Pi origin whereas the feeding strategy has no significant effect. Concerning skatole, both genetic origin and feeding strategy significantly affect concentrations in shoulder back... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Food security; Food quality and human health Feeding and growth Processing; Packaging and transportation Breeding and genetics Pigs. |
| Ano: 2017 |
URL: http://orgprints.org/31805/1/Einfluss%20von%20Genotyp%20und%20F%C3%BCtterung%20in%20der%20%C3%B6kologischen.pdf |
| |
|
|
| Heidbüchel, K.; Bussemas, Ralf; Meier-Dinkel, Lisa; Mörlein, Daniel; Weißmann, Friedrich. |
| Skatole, one of the main causes of boar taint, derives from tryptophan in the large intestine and accumulates in the fat tissue of boars, thus decreasing meat quality. We hypothesize that energy of roughage promotes growth of skatole reducing microbes. Therefore, we compare the two roughages grass-clover-silage and straw, regarding the effect on concentrations of skatole and androstenone in the fat tissue. The experiments are currently ongoing and will help to evaluate special feeding strategies as an alternative to castration, thereby promoting animal welfare and product quality. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Feeding and growth; Health and welfare; Pigs. |
| Ano: 2017 |
URL: http://orgprints.org/31665/1/Erste%20Ergebnisse%20eines%20Grundfuttervergleichs%20zur%20Senkung.pdf |
| |
|
| |
|
|
| Kohlschütter, Niels; Zarin, Sarah Sakineh; Bellof, Gerhard; Schmidt, Eggert; Werner, Carsten; Mörlein, Daniel; Pahl, Hubert; Köpke, Ulrich. |
| Suitable conservation strategies for endangered domesticated breeds hinge on the knowledge of their special traits and benefits. We compared the performance of en-dangered geese and turkey breeds with common hybrid breeds, and focussed on meat quality as a potential marketing factor for a cost efficient on-farm conservation strategy. The animals were reared under identical feeding and housing conditions. In comparison with the endangered breeds, the hybrid breeds of both species were heavier and showed a lower feed conversion ratio. The meat of the endangered goose breed showed a higher drip loss, while the meat of the endangered turkey breed had less cooking loss, a higher shear force, and was preferred in a sensory test. Differ-ences in body weight gain... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Poultry; Breeding and genetics; Farm economics. |
| Ano: 2007 |
URL: http://orgprints.org/9349/1/9349_Kohlsch%C3%BCtter_Poster.pdf |
| |
|
|
|
