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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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| Spoolder, H. A. M.; Mejer, H. E.; Vermeer, H. M.; Meerburg, B. G.; van Krimpen, M.; Kijlstra, H. A.. |
| Organic and free range pigs are potentially exposed to a wider range of parasites and zoonotic challenges. The livestock Subproject QLIF addresses 4 strategies to combat these challenges, and the present paper describes the initial results. Rodent control is the first strategy, and a survey concludes that Salmonella and Campylobacter infections were encountered in house mice and Norway rats, but not in other species. T. gondii antibodies could be detected in 6.4% of the blood samples taken from 235 wild small mammals. To reduce the presence of rodents around farms, the use of live-traps may be a good alternative for the use of rodenticides on organic farms. A second strategy is aimed at directing pig dunging behaviour in such a way that contact with... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Pigs; Health and welfare. |
| Ano: 2007 |
URL: http://orgprints.org/10408/1/spoolder%2Detal%2D2007%2Dprevention_treatment_pigs.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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