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Sandmeyer LS Bellone RR Archer S Bauer BS Nelson J Forsyth G Grahn BH 《Veterinary ophthalmology》2012,15(1):18-22
Objective To determine if congenital stationary night blindness (CSNB) exists in the miniature horse in association with leopard complex spotting patterns (LP), and to investigate if CSNB in the miniature horse is associated with three single nucleotide polymorphisms (SNPs) in the region of TRPM1 that are highly associated with CSNB and LP in Appaloosas. Animals studied Three groups of miniature horses were studied based on coat patterns suggestive of LP/LP (n = 3), LP/lp (n = 4), and lp/lp genotype (n = 4). Procedures Horses were categorized based on phenotype as well as pedigree analysis as LP/LP, LP/lp, and lp/lp. Neurophthalmic examination, slit‐lamp biomicroscopy, indirect ophthalmoscopy, and scotopic flash electroretinography were performed on all horses. Hair samples were processed for DNA analysis. Three SNPs identified and associated with LP and CSNB in the Appaloosa were investigated for association with LP and CSNB in these Miniature horses. Results All horses in the LP/LP group were affected by CSNB, while none in the LP/lp or lp/lp groups were affected. All three SNPs were completely associated with LP genotype (χ2 = 22, P << 0.0005) and CSNB status (χ2 = 11, P < 0.0005). Conclusions The Miniature Horse breed is affected by CSNB and it appears to be associated with LP as in the Appaloosa breed. The SNPs tested could be used as a DNA test for CSNB until the causative mutation is determined. 相似文献
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Susan C. Baker Simon J. Grove Lynne Forster Kevin J. Bonham Dick Bashford 《Forest Ecology and Management》2009
The Warra Silvicultural Systems Trial (SST) in Tasmania, Australia provides a framework for investigating the responses of beetles (Order: Coleoptera) to three alternative systems in lowland wet eucalypt forest: aggregated retention; dispersed retention; and understorey islands retained in clearfelled areas. Beetles from three families known to be sensitive to forest management, the families Carabidae (ground-beetles), Curculionidae (weevils) and Leiodidae (fungus-beetles), were collected with pitfall traps prior to harvest, and in the first and third years post-harvest. The retained aggregates in the aggregated retention system maintained beetle assemblages reasonably typical of mature forests, at least in these early years following harvesting. These aggregates appear to provide a stable habitat, with similar species composition in the first and third years post-harvest. In contrast, the harvested areas of the aggregated retention system contained low numbers of beetle species affiliated with mature forest, as did the understorey islands and the dispersed retention system. Relative to clearfelling, all alternative silvicultural systems appeared to be of some benefit to beetles affiliated with mature forest, but aggregated retention retained far greater numbers of these beetles compared to the other systems in Tasmanian wet eucalypt forest. 相似文献
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Ted H. Wu Jonathan D. Nigg Jesse J. Stine Peter J. Bechtel 《Journal Of Aquatic Food Product Technology》2013,22(2):183-195
There is growing interest for fishmeals and oils made from utilizing different fish by-products (heads, viscera, frames, etc.) that come directly from the commercial processing line. The major components of fish processing waste from salmon filleting operations are heads and viscera. In order to maximize the utilization of these individual by-products, the different fractions were evaluated. Analysis of essential amino acids in fishmeal showed significant differences in all essential amino acids except lysine. Differences were also noted in the levels of minerals, fatty acid methyl esters, biogenic amines, and fat soluble vitamins. The largest difference observed was in the level of retinol in the oil extracted from heads (8.9 ± 1.0 μg/g oil) and viscera (26.9 ± 3.8 μg/g oil). Head processing resulted in more lipids and cake, while the majority of viscera became stickwater. Results suggest that the fishmeal produced from different by-product parts can result in different nutritional values for feed or food ingredients. 相似文献
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Stine Kreutzmann Marc Bassompierre Anette Kistrup Thybo Lars Buch Søren Balling Engelsen 《Potato Research》2011,54(1):13-28
From a potato cultivar breeding database including 2,143 named cultivars and clones, 11 cultivars that spanned the major variation
in cultivar quality were selected for subsequent sensory and hedonistic applicability tests. A tailor-made sensory profile
of the cultivars was developed for four different cooking procedures: boiled, mashed, oven-fried and oven-cooked potatoes.
A sensory profile consisted of the four to five most important sensory attributes, and the data was combined with the applicability
data using multivariate data analysis. Ultimately, the variation in eating quality was evaluated in a hedonistic test with
expert evaluation of applicability. Three gourmet chefs prepared the different cultivars as boiled potatoes, mashed potatoes,
baked potatoes and oven-fried potatoes and evaluated the cultivars’ applicability, while a sensory panel consisting of nine
judges evaluated the sensory quality. The multivariate data analysis revealed a significant diversity amongst the cultivars
for the different cooking procedures. A single PCA bi-plot was able to provide a simple and clear overview of the gastronomic
diversity and possible applications of the different potato cultivars. 相似文献