1,720,962 research outputs found
Nutrient composition, volatile fatty acids production, digestible organic matter and anti-nutrtional factors of some agro-industrial by-products of Ethiopia
Get PDFNutrients, metabolizable energy (ME), anti-nutritional factors, digestible organic matter (DOM) and volatile fatty acids (VFA) production of 17 agro-industrial by-products from Ethiopia were determined. Highest amount of ash was found in fishmeal (FM) and of lignin in sisal waste (SW) and banana peels (BP). Cabbage leftover (CL), onion peels (OnP), papaya peels (PaP) and FM had high CP (137 to 490 g/kg DM) and NPN (51 to 141 g CP/kg DM); distillery by-product (DB) and brewery by-product (BB) had high CP (179 and 187 g/kg DM) and NDF (535 and 396 g/kg DM, respectively) but low NPN (21 and 9 g CP/kg DM). CL, OnP, PaP and FM had low NDF (576±9 g/kg DM) except avocado peels (AP) and BB. VFA concentrations were >19.1±1.8 mM except in CPa,FM and AP (< 12.1±2.9 mM). Coffee pulp (CPu), CL and MP had high total phenolics (123 to 151 g/kg DM) and tannin (42 to 86 g/kg DM). BP had largest amount of phytate. Hemolytic activity (saponin) was detected in FM, potato peels, SW, CPa and CL. The feeds can serve as sources of energy and protein
EFFECTS OF DIETARY CRUDE PROTEIN LEVEL ON THE DIGESTIBILITY OF NUTRIENTS, EXCRETION OF FECAL N AND URINARY N-FRACTIONS AND THE KINETICS OF 15N LABELED UREA IN GROWING MALE GOAT KIDS
Get PDFA feeding trial was conducted with 16 male Saanen'kids (4 kids/treatment) weighing 19.0 ± 1.8 kg in the mi!idle of which they weresubject to a metabolism trial and kept in cages for 14 days. £ona.quantitative 10 days collection of eX'~Teta. Kids were fed a constant amount. of the four diets formulated out of molassesseq wheat straw [55 g crude protein (CP) per kg dry matter (OM)] and pelleted concentrptes having 87, 117, 144 and 176 g cp/kg OM. They were injected about 100 rr,tg of 15N_' labeled urea into the jugular vein at the beginning of the collection period. Nutrient digestibility, fecal N and urinaryN-fractions, Nand ISN balances were measured; irreversible loss (IL) of urea from the body urea pool (BUI') and the kinetics of N in the body calculated. Increasing dietary CI' increased digestibility of organic matter (OM) from 71 % to 80% .and of crude fiber (CF) from 28% to 58%; excretion of fecal N by 56%; of urea Nby 93%; proportion of N of urea, allantoin, creatinine, uric add' plus hypoxanthine in urinary N from 31 % to 66%, 12% to 22%, 3% to 12%, and by 1.7%, respectively; irreversible iron (IL) of N from 1.98 to 12.24 g/d; transfer of urea to gastro-intestinal tract (GIT) from 1.58 to 6.69 gld (i.e;, equivalent to 80% to 55% of IL); recycling of the degraded urea l':-l to metabolic pool from 1.22 to 6.12 g/ d; but it has decreased the proportion of retained N of BUP origin from 38 to 30% and excretion of urinary nonurea N from source other than BUP was constant. Excretion of urea is the' mechanism by which goat kids adapt to variable supply of dietary protein. Excretion of fecal N was more closely related to OM intake, while that of urea N to dietary CP level and of purine derivatives (PO) to digestible OM intake
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Effect of Jatropha curcas seed meal inclusions in the diet of Lohmann Brown Layers on egg production and its quality
Get PDFMost of the protein source feedstuffs for poultry like soybean and soybean meal are expensive. Thus alternative and cheaper non-conventional feedstuffs should be assessed in order to broaden sources of ingredients. Jatropha curcas seed meal is one of the non-conventional feed ingredients that can be used for poultry feed. Therefore, the objectives of this study were to investigate the effect of dietary inclusion of treated and untreated Jatropha seed meal on feed intake, feed conversion ratio, egg production and egg quality traits. A feeding trial was carried out for eight weeks at Hawassa University, with 250 Lohmann Brown commercial layers (42 weeks old). Chicken were allotted to five treatment diets replicated five times with 10 hens per replication in a completely randomized design. The control treatment (T1) represents the standard poultry feed that contained 42% white maize, 15% wheat bran, 7% noug cake, 25% soybean, 4% bone and meat meal, 4% limestone, 2.5% Premix and 0.5% salt. In the treatments T2 to T5, 5% of soybean seed in T1 was replaced by 1.25% untreated and treated Jatropha seed meal where T2, T3, T4 and T5 contained untreated, heat-treated, NaOH-treated and T5 yeast treated Jatropha seed meal, respectively. There were significant variations in daily feed intake, food conversion rate, hen-day egg production, hen-housed egg production and mortality among treatment groups. Chicken receiving T2 had reduced daily feed intake compared to hens that were fed on all other diets (p<0.05). Chickens reared under T1 had lower values of food conversion rate and mortality than chickens kept on all other diets (p<0.05). There was no significant differences among all treatment groups in egg shape index, egg weight and shell thickness. Substituting 5% soybean with untreated jatropha seed meal influences most of the tested parameters in the present study. On the other hand, the replacement of 5% quantity of soybean with treated jatropha seed meal had no effects on hen-daily egg production, hen-house egg production, Egg shape index, Egg weight, Shell thickness, Albumin height, Yolk height, Yolk weight and Haugh Unit compared to the standard poultry diet (T1). Accordingly, 1.25% heat, NaOH and yeast-treated jatropha seed meal could be used to replace 5% of the soybean seed in the Lohmann Brown layers diet
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