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Managerial Capacities of Broiler Producers and their Influence on Production Results
Full text linkIt is a well-known fact that there are significant differences in production output and business results of farms operating under rather similar natural and socio-economic conditions. Such differences can be attributed to biological factors, specialization level and production intensity, size of farms, implemented production practice, but also to the differences in capabilities of farmers, that is, their managerial capacities. The starting point in selection of subjects for the research was significance of managerial capacities and the fact that not enough attention is dedicated to them, as well as the necessity of urgent improvement of competitiveness in production of poultry meat in our country. Therefore, the subject of the research in this doctoral dissertation is managerial capacities of broiler producers in Vojvodina. When analysing managerial capacities of broiler producers, not only were personal aspects taken into account (gender, age, education level, previous experience, etc.), but the subject of consideration includes characteristics of decision making process (planning, implementation and control) as well. The main objective of the study is to point out to the significance of managerial capacities, possibilities and methods implemented in their assessment, and to establish the reason why some of the broiler producers in Vojvodina, operating under rather similar conditions, are more efficient as compared to other farmers. In order to analyse managerial capacities of broiler producers and to judge whether and to what extent do they influence the production output (technical and economic efficiency), 30 broiler farms of different production capacities, all at the territory of AP Vojvodina, were comprised in the analysis. One of the starting hypotheses in this study considers significant differences in technical and economic efficiency between the selected broiler farms. Technical and economy efficiency indexes, obtained by implemented DEA method, indicate that such hypothesis was justified. The obtained TE indexes point out that broiler producers in Vojvodina are relatively technically efficient (six out of thirty producers achieved maximum level of TE). However, the number of farms that achieved maximum level of EE is much lower (only one out of thirty farms achieves maximum level of EE), which indicates the market difficulties that producers are coping with, but also proves that it is possible to operate better under the existing conditions which are assumed to be the same for all. The number of economically inefficient farms could be reduced through decrease of production costs (primarily reduction of feed costs, increase of operation productivity, reduction of energy costs, etc.), which certainly requires, as one of preconditions, the adequate managerial capacities of producers. The assumption that certain aspects of managerial capacities, such as personal aspects and decision making process, influence TE and EE has been confirmed with the results of Tobit regression. Statistically significant influence of achieved TE and EE is confirmed in 9 out of 82 variables included in the models. This certainly does not mean VIII that other aspects of managerial capacities are not significant, but that under current conditions, relatively small number of variables determines the number of farms that will manage to achieve or at least to nearly achieve “the best possible practice”. Statistically significant influence was also proven in certain personal aspects of producers, as well as in some aspects of decision making process. Therefore, it is necessary to explain to producers and advisors the significance of the aforesaid aspects and to work on their improvement. The only aspect proven as significant both for TE and EE is the experience of farmers, which only explains the poor working environment that our producers operate in. The conclusion which can be derived from the aforesaid is that the most significant and irreplaceable managerial capacity of broiler producers is their experience. Such experience mainly refers to business relations and acquaintances obtained from long-lasting engagement in broiler production, but also to their ability to find their way and achieve success in conditions of the black economy. The fact that there is no statistical significance in terms of influence of certain aspects of managerial capacities on TE and EE, actually points out to underdevelopment of the required managerial capacities of broiler producers. Therefore, the improvement of managerial abilities must be set as the permanent task, so competitiveness of poultry meat sector could be increased. To this effect, it is necessary to provide constant education through trainings and seminars, as well as regular cooperation with advisory service (particularly in terms of significance of keeping records, planning and control of the achieved results), but also through exchange of experience and cooperation with other producers
Production performance of broilers and laying hens fed mixtures with different share of raw soybean grain
No full textIspitivan je uticaj ishrane živine smešama koje sadrže dve sorte soje domaće
selekcije, od kojih je jedna sa smanjenim sadržajem tripsin inhibitora (TI) dok druga
sadrži standardni nivo TI, i nivoa sirovog zrna soje obe sorte u završnim smešama za
ishranu brojlerskih pilića i u ishrani kokoši nosilja na proizvodne rezultate, kvalitet
pilećeg mesa i kvalitet jaja.
Ogledi su izvedeni po principu dvofaktorijalnih, pri čemu je ogled sa brojlerskim
pilićima imao 10 tretmana ishrane (2 sorte x 5 nivoa sirovog zrna soje) i 200 pilića po
tretmanu, a ogled sa nosiljama 8 tretmana (2 sorte x 4 nivoa sirovog zrna soje) i 64
nosilje po tretmanu.
Ogled sa brojlerskim pilićima izveden je u poslednjoj nedelji tova, pri čemu je
svakodnevno evidentirana količina utrošene hrane i mortalitet. Na kraju oglednog
perioda (42. dana) izvršeno je merenje telesnih masa pilića, utvrđivanje prirasta,
konzumacije i konverzije hrane. Metodom slučajnog uzorka iz svake grupe žrtvovano je
po 12 pilića (6 muških i 6 ženskih) u cilju dobijanja klaničnih pokazatelja, kvaliteta
mesa i mase i udela pankreasa.
U toku 9 nedelja istraživanja kod kokoši nosilja, svakodnevno je praćena
nosivost i pojava defektnih jaja, periodično (na svakih 7 dana) utvrđen je utrošak hrane i
spoljašnji i unutrašnji kvalitet jaja. Na kraju ogleda izvršeno je merenje telesnih masa
nosilja i utvrđivanje prirasta. Metodom slučajnog uzorka iz svake grupe izdvojeno je po
6 nosilja, koje su žrtvovane u cilju utvrđivanja mase i udela pankreasa.
Dobijeni rezultati u ogledu sa brojlerskim pilićima su pokazali da se sa
povećanjem učešća sirovog zrna soje u smešama, postepeno smanjivala završna telesna
masa. Učešće sirove soje u smešama od 15% i 20% kod obe sorte uticalo je na značajno
smanjenje telesne mase. Konverzija hrane je bila statistički značajno bolja kod pilića
hranjenih smešama koje sadrže soju sa nižim nivoom TI. Mortalitet brojlerskih pilića
nije bio pod značajnim uticajem ispitivanih faktora. Udeli abdominalne masti, grudi i karabataka, hemijski i aminokiselinski sastav belog i tamnog mesa nisu bili pod
uticajem ispitivanih faktora, a sa povećanjem koncentracije TI u obrocima brojlerskih
pilića postepeno se povećava masa i udeo pankreasa..
Production performance of broilers and laying hens fed mixtures with different share of raw soybean grain
Full text linkIspitivan je uticaj ishrane živine smešama koje sadrže dve sorte soje domaćeselekcije, od kojih je jedna sa smanjenim sadržajem tripsin inhibitora (TI) dok drugasadrži standardni nivo TI, i nivoa sirovog zrna soje obe sorte u završnim smešama zaishranu brojlerskih pilića i u ishrani kokoši nosilja na proizvodne rezultate, kvalitetpilećeg mesa i kvalitet jaja.Ogledi su izvedeni po principu dvofaktorijalnih, pri čemu je ogled sa brojlerskimpilićima imao 10 tretmana ishrane (2 sorte x 5 nivoa sirovog zrna soje) i 200 pilića potretmanu, a ogled sa nosiljama 8 tretmana (2 sorte x 4 nivoa sirovog zrna soje) i 64nosilje po tretmanu.Ogled sa brojlerskim pilićima izveden je u poslednjoj nedelji tova, pri čemu jesvakodnevno evidentirana količina utrošene hrane i mortalitet. Na kraju oglednogperioda (42. dana) izvršeno je merenje telesnih masa pilića, utvrđivanje prirasta,konzumacije i konverzije hrane. Metodom slučajnog uzorka iz svake grupe žrtvovano jepo 12 pilića (6 muških i 6 ženskih) u cilju dobijanja klaničnih pokazatelja, kvalitetamesa i mase i udela pankreasa.U toku 9 nedelja istraživanja kod kokoši nosilja, svakodnevno je praćenanosivost i pojava defektnih jaja, periodično (na svakih 7 dana) utvrđen je utrošak hrane ispoljašnji i unutrašnji kvalitet jaja. Na kraju ogleda izvršeno je merenje telesnih masanosilja i utvrđivanje prirasta. Metodom slučajnog uzorka iz svake grupe izdvojeno je po6 nosilja, koje su žrtvovane u cilju utvrđivanja mase i udela pankreasa.Dobijeni rezultati u ogledu sa brojlerskim pilićima su pokazali da se sapovećanjem učešća sirovog zrna soje u smešama, postepeno smanjivala završna telesnamasa. Učešće sirove soje u smešama od 15% i 20% kod obe sorte uticalo je na značajnosmanjenje telesne mase. Konverzija hrane je bila statistički značajno bolja kod pilićahranjenih smešama koje sadrže soju sa nižim nivoom TI. Mortalitet brojlerskih pilićanije bio pod značajnim uticajem ispitivanih faktora. Udeli abdominalne masti, grudi i karabataka, hemijski i aminokiselinski sastav belog i tamnog mesa nisu bili poduticajem ispitivanih faktora, a sa povećanjem koncentracije TI u obrocima brojlerskihpilića postepeno se povećava masa i udeo pankreasa..
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Full text linkWe 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
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