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Spotter A.,University of Veterinary Medicine Hannover | Hamann H.,University of Veterinary Medicine Hannover | Muller S.,Thuringer Landesanstalt fur Landwirtschaft TLL | Distl O.,University of Veterinary Medicine Hannover
Reproduction in Domestic Animals

Contents: We carried out an SNP discovery project in pigs for candidate genes playing potentially important roles in embryonic development. Using eight pigs one each from eight breeds (Meishan, Mangalitza, Duroc, Pietrain, German Landrace, Hampshire, Husum Red Pied, German Large White), 36 SNPs were identified in intronic sequences of 21 porcine candidate genes based on sequencing of PCR products. The primer pairs were designed using porcine EST sequences allowing amplification of introns. These SNPs were tested for their association with the number of piglets born alive in German Large White sows using a discordant approach. Significant effects (p < 0.001 and p < 0.05, respectively) of intronic SNPs on litter size were found for four genes: mitogen-activated protein kinase kinase kinase 3 (MAP3K3), vascular endothelial growth factor receptor (KDR), erbb2 interacting protein (ERBB2IP) and peroxisome proliferator-activated receptor delta (PPARD). These SNPs can be further tested in upcoming association studies for their influence on litter size in different breeds using larger sample sizes. © 2008 The Authors. Journal compilation © 2008 Blackwell Verlag. Source

Thran D.,Helmholtz Center for Environmental Research | Pfeiffer D.,DBFZ Deutsches Biomasseforschungszentrum Gemeinnutzige GmbH | Grober A.,DBFZ Deutsches Biomasseforschungszentrum Gemeinnutzige GmbH | Steiert S.,Center for Solar Energy and Hydrogen Research | And 5 more authors.
Energy, Sustainability and Society

In 2009 the German funding programme for "Promoting Projects to Optimise the Use of Biomass for Energy Production" ("Biomass for Energy") has started and fostered a wide range of projects to combine sustainable energy supply and climatic protection. Certain projects are described to give an idea of the wide range of projects and the different aspects of sustainability which are addressed. Additionally a first product for the planned quality assurance of the results via a dedicated method handbook is given. © 2011 Thrän et al. Source

Halle I.,German Institute of Animal Nutrition | Schone F.,Thuringer Landesanstalt fur Landwirtschaft TLL
Journal fur Verbraucherschutz und Lebensmittelsicherheit

In hens the effects of expeller/cakes from rapeseed, linseed, and hemp seed were investigated on feed intake, laying performance and fatty acid composition of egg yolk. A total of 216 individually caged laying hens were allocated to nine dietary treatments (5, 10, 15 % cake) and fed for six laying months. For feed intake, egg mass production and feed-to-egg mass ratio at 15 % dietary cake level a significant lower performance was shown compared with the 5 and 10 % cake level groups. Also interaction was significant for all these parameters, indicating that the cake level acted differently for the three cakes. The egg mass production was lower in the linseed cake than in the hempseed groups and the hens fed the linseed cake needed significantly more feed per kg egg mass compared with both the other cakes tested. Increasing dietary level of all oil seed cakes lowered the yolk percentage and increased the egg white percentage. Increased dietary levels of all three oil seed cakes lowered the percentages of most saturated fatty acids and also the percentages of the monounsaturated fatty acids. The linoleic acid and the linolenic acid as polyunsaturated fatty acids were heightened by increasing the cake levels from 5 to 10 and 15 % in the diet. The results allow the conclusion that compound feeds with up to 10 % of cakes does not negatively influence the laying performance of hens and provides the possibility of the enrichment of yolk fat with polyunsaturated fatty acids. © 2013 Bundesamt für Verbraucherschutz und Lebensmittelsicherheit (BVL). Source

Witzmann S.,Institute For Tierernahrung | Visscher C.,Institute For Tierernahrung | Holtershinken M.,Klinik fur Rlnder | Senkpiel J.,Klinik fur Rlnder | And 5 more authors.

The still existing uncertainties in assessing the iodine status of cattle, partly due to the high variability of feeding and housing under practical conditions, gave the onset to characterize potential effects of various factors (intake of saltwater or brackish water, level of iodine supply [use of mineral feed or algae powder], feeding rapeseed meal) on the iodine balance of bulls, heifers and dairy cows (iodine levels in serum, urine and faeces; iodine homoeostasis) and to draw conclusions for diagnostics. The data collection was based on nine balance trials with growing bulls of the Holstein-Friesian breed and in a field study with heifers and dairy cows. Overall there was a strong correlation between the iodine level in serum and the oral iodine intake. The intake of high amounts of salt via drinking water led to increased renal iodine excretion and a significant reduction of the iodine level in serum. When iodine supply was sufficient (here the threefold need) the increased renal losses could be compensated by reducing the faecal iodine output. Feeding rapeseed meal with common, low contents of glucosinolates had only slight influences on the iodine level in serum of the investigated animals. Under practical aspects, regarding the above mentioned factors, serum as well as urine is suitable to assess the iodine status of cattle herds. Source

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