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| Sappok, Maria; Pellikaan , Wilbert; Verstegen, Martin; Hendriks, Wouter; Sundrum, Albert. |
| Das Vermögen von Mastschweinen, faserreiche Futtermittel zu verdauen, kann stark variieren. Es existieren nur wenige Daten zu Unterschieden in den Verdaulichkeitsraten bei Schweinen ökologischer und konventioneller Betriebe und ob sich die Verdaulichkeitsraten im Zeitverlauf ändern. Bisher basiert die Methode zur Messung der Vardaulichkeitsraten faserreicher Futtermittel auf Inokula, welche von konventionell gefütterten Schweinen gewonnen werden. Deshalb wurde eine Studie mit Inokula von ökologischen und konventionellen Kontrolltieren zur Messung der Verdaulichkeitsraten diverser Substrate über 6 Wochen durchgeführt. Die Ergebnisse zeigen hohe Variationen in den kalkulierten Kinetiken. Daher sind die Kinetiken wahrscheinlich geeigneter zur... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Feeding and growth. |
| Ano: 2011 |
URL: http://orgprints.org/17676/3/Sappok_17676.pdf |
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| Ivanova-Peneva, Sonya; Aarnink, Andrè; Verstegen, Martin. |
| The main aim of this study was to quantify nutrient deposition on the paddock in Dutch organic pig farms. Observations of excreting behaviour of grazing sows were carried out at three farms in each of two measuring seasons (spring/summer and autumn). The nutrient loads of N, P and K were calculated according to their content in urine and faeces, average weight of urine and faeces per excretion, and number of urinations and defecations done in the paddock. The N and P loads on the paddock varied greatly between the organic pig farms (P<0.01 for N, not significant for P and P<0.05 for K). The total amount of nutrients on two of the farms far exceeded the permitted levels (170 kg.ha-1year-1 for N and 44 kg.ha-1year-1 for P). On all three farms, faeces... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Production systems. |
| Ano: 2005 |
URL: http://orgprints.org/4377/4/4377%2DIvanova%2DPeneva_etal_4p_revised%2Ded.pdf |
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| Sappok, Maria; Perez Gutierrez, Odette; Smidt, Hauke; Pellikaan , Wilbert; Verstegen, Martin. |
| In vitro gas production studies can be used in pig nutrition to assess the metabolic capacity of intestinal microbiota to ferment fibre. The intestinal microbiota are obtained from faeces of animals adapted to a certain diet. However, the necessary adaptation time of faecal donor animals to attain a stable microbial population whose fermentation capacity is representative for a different fibre content in the diet is largely unknown. Therefore a study was carried out where two groups of sows where either changed from a diet high in fibre to a diet low in fibre or vice versa. After the diet was changed, the large intestinal microbiota was characterized every three days during a period of 19 days with a phylogenetic microarray. The diet change led to... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Feeding and growth. |
| Ano: 2013 |
URL: http://orgprints.org/21584/1/21584_Sappok.pdf |
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