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| Bikker, P.; Binnendijk, G.P.; Vermeer, H. M.; van der Peet-Schwering, C.M.C.. |
| In this study, organically raised pigs received an increasing proportion of grass silage up to 10 and 20% dry matter in the daily ration in the grower and finisher period, respectively, to determine the effects on feed intake and growth performance. The pigs receiving a mixture of grass silage and compound feed ingested 0.3 kg DM/d (13% of their daily ration) as grass silage and realised a similar daily net energy intake as pigs fed compound feed only. However, the silage fed pigs realised a lower daily gain (37 g/d) and a lower calculated net energy utilisation (1.6 MJ/kg) for gain and a lower dressing percentage (1.1%) of the carcass. The nutritive value of grass silage for growing pigs requires further investigation to clarify and minimise the loss in... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Feeding and growth; Pigs. |
| Ano: 2014 |
URL: http://orgprints.org/24257/1/24257%20growing%20pigs_MM.pdf |
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| Bikker, P.; Binnendijk, G.P.; Vermeer, H. M.; van der Peet-Schwering, C.M.C.. |
| This study was conducted to determine whether the supply of grass silage or grass silage mixed with barley or CCM to organically raised gestating sows would allow a reduction of compound feed allowance without loss in animal performance. On average, sows fed grass silage or mixed silage were able to compensate for a pre-set reduction of 1 kg or 1.5 kg compound feed, respectively. However, the variation in silage intake between individual sows was large, with a number of mainly young sows consuming less silage than the required amount. Consequently, these sows showed a net back fat loss during the experimental period from d 7 of gestation to weaning. Our results indicate that more feeder space than 1 for 8 sows is required to allow adequate silage intake in... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Feeding and growth; Pigs. |
| Ano: 2014 |
URL: http://orgprints.org/24284/1/24284%20gestating%20sows_MM.pdf |
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| Bikker, P.; Harn, J.; Groenenstein, C.M.; Wit, J. de; Bruggen, C.; Luesink, H.H.. |
| In dit werkdocument is op verzoek van het Ministerie van Economische Zaken de excretie van stikstof (N) en fosfor (P) van gangbaar en biologisch gehouden varkens, pluimvee en melkkoeien vergeleken.Ten opzichte van gangbaar gehouden dieren zijn de berekende N- en P-excretie per dier per jaar circa 25% hoger bij biologisch gehouden vleesvarkens en respectievelijk circa 60 en 75% hoger voor biologisch gehouden zeugen met bijbehorende biggen. De N- en P-excretie per dier per jaar van biologisch gehouden leghennen zijn respectievelijk 22 en 17% hoger dan in gangbare scharrelsystemen en 35 en 26% hoger dan in gangbare verrijkte kooi / kolonie gehouden leghennen. De N- en P-excretie per vleeskuikenplaats per jaar van biologisch gehouden vleeskuikens zijn in... |
| Tipo: Report |
Palavras-chave: Dairy cattle; Pigs; Poultry. |
| Ano: 2013 |
URL: http://orgprints.org/26762/1/273600 |
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