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| Heckendorn, F.; Häring, D.A.; Amsler, Z.; Maurer, V.. |
| The aim of this experiment conducted at four sites in Switzerland was to investigate the transmission and infectivity of the two main helminth parasite species of poultry (Ascaridia galli and Heterakis gallinarum) in outdoor runs with two different stocking rates. Additionally, the influence of a simplemanagement practice (mowing of run) on helminth transmission was studied. Three run types were created on each site: runs C served as control (stocking rate 10 m2/hen, no management), runs B corresponded to runs C but were managed (10 m2/hen, management). In runs A stocking rates were doubled compared to control runs (5 m2/hen, no management). During two subsequent layer flocks, a set of parasitological parameters (faecal egg counts (FECs), prevalence, worm... |
| Tipo: Journal paper |
Palavras-chave: Poultry; Health and welfare. |
| Ano: 2009 |
URL: http://orgprints.org/15621/1/Heckendorn_2009_Vet_Parasitol.pdf |
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| Maurer, V.; Amsler, Z.; Perler, E.; Heckendorn, F.. |
| The aim of this study carried out in 6 commercial layer houses was to examine the effect of litter management on water content, helminth egg count and litter infectiousness with the intestinal nematodes Ascaridia galli, Heterakis gallinarum, and Capillaria spp. Three types of litter management were established in each layer house in parallel: in compartment A, litterwas left undisturbed, in compartment B, wet litter was replaced and in compartment C, new litter material was added weekly. Dry matter (DM) contents of the litter and parasitological parameters (helminth egg concentration in litter samples, faecal egg counts (FECs) in the permanent layer flocks, helminth prevalence and burdens in two series of tracer animals) were determined every 4 weeks during... |
| Tipo: Journal paper |
Palavras-chave: Poultry; Health and welfare. |
| Ano: 2009 |
URL: http://orgprints.org/15614/1/Maurer_2009_Vet_Parasitol.pdf |
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| Werne, S.; Maurer, V.; Perler, E.; Amsler, Z.; Probst, J.; Zaugg, C.; Krenmayr, I.; Schwery, M.; Volken, H.; Heckendorn, F.. |
| Gastrointestinal nematodes (GIN) are one of the most important problems affecting health and therefore performance and welfare in small ruminant husbandry. The control of these parasites in the past strongly relied on the repeated use of anthelmintic drugs. This has led to nematode populations which are resistant to most of the currently available anthelmintics. Furthermore customer’s demands for organic and residue free animal products are increasing. The aforementioned problems have given a strong impetus for the development of new non-chemical strategies to control GIN. Previous research has pointed out the anthelmintic potential of sainfoin (Onobrychis viciifolia) and other tanniferous (CT) feed sources in goats and lambs infected with GIN. A recent... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Feeding and growth; Sheep and goats; Health and welfare. |
| Ano: 2012 |
URL: http://orgprints.org/21726/1/Heckendorn_Werne_IFOAM_fullpaper_29_6_12_final.pdf |
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| Maurer, V.; Holinger, M.; Amsler, Z.; Früh, B.; Wohlfahrt, J.; Stamer, A.; Leiber, F.. |
| Insects will likely play an important role as protein sources for livestock in the future. Many insect species are able to convert materials not suitable for human nutrition – or even waste – into valuable protein with a favourable amino acid composition for poultry and other livestock. A feeding trial with partly de-fatted meal of dried Hermetia illucens larvae (Hermetia meal) reared on vegetarian by-products of the pasta and convenience food industry was carried out in small groups of Lohmann Selected Leghorn laying hens (four rounds, 10 hens/round). Experimental diets H12 and H24 contained 12 and 24 g/100 g Hermetia meal replacing 50 or 100% of soybean cake used in the control feed, respectively. After three weeks of feeding experimental diets, there... |
| Tipo: Journal paper |
Palavras-chave: Feeding and growth; Poultry. |
| Ano: 2015 |
URL: http://orgprints.org/29465/1/Maurer-etal-2015-JIFF-online-p1-8.pdf |
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