RIULS

Repository of Iasi University of Life Sciences, ROMANIA

Welcome to RIULS!

The mission of the University’s institutional repository is to manage, preserve and disseminate, in open access, the academic and institutional output of the university’s academic community. It also aims to promote values and personalities belonging to Romanian agricultural science, by storing digitized versions of rare books and manuscripts from its collections.

The repository is part of the international movement known as open science, which promotes free access to scientific literature. This translates into maximized impact of the work carried out by researchers, contribution to improving access to knowledge, increased visibility of the institution through the works of its authors and improvement of its search engine ranking.

All documents deposited in the repository receive a unique and persistent identifier called a Handle, thus guaranteeing perpetual access to scientific output through permanent links.

RIULS Repository of Iași University of Life Sciences is indexed in Duraspace, OpenDOAR,CORE,Google Scholar,BASE (Bielefeld Academic Search Engine) and ROAR (Registry of Open Access Repositories), global Directories of Open Access Repositories.

Categories in RIULS

Select a category to browse its collections.

Now showing 1 - 3 of 3

Colecții speciale - Ad Gloria Agris / Special Collections-Ad Gloria Agris 141
Cuprinde cărți și publicații periodice rare ale fondatorilor agriculturii și ai învățământului agricol românesc modern, precum și teze de doctorat din domeniul agricol de la început de secol XX.
Publicații ale Bibliotecii - Librum de libris / Publications of the Library - Librum de libris 13
Contains publications created by the Library’s staff: bibliographies, articles, tutorials, etc.
Publicații științifice ale Universității – AgriScriptum / Scientific Publications of the University - AgriScriptum 6553
Contains documents resulting from scientific research produced or edited by the departments, research institutes and study centres of the University: Doctoral Theses, articles published in ISI journals, articles published in the journals edited by the University, patents, scientific projects, etc.

Recent Submissions

listelement.badge.access-status Open Access ,
Effect of feeding rate on growth performance of A. stellatus (Pallas, 1771) reared in a recirculating aquaculture system
(“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2019) Petrea, Șt.-M.; Mogodan, Alina; Simionov, Ira-Adeline; Cristea, V.
Recirculating aquaculture systems (RAS) represents the most suitable solution for rearing sturgeons in intensive conditions, situation which imposes the use of a proper technology, respectively feeding rate, for a certain fish development stage. The aim of present study is to evaluate the effect of feeding rate on growth performance of stellate sturgeon (330.55±44.27 g) reared in RAS conditions. Two feeding rates were tested (F1 - 1% BW, respectively F2 - 2% BW), in replicate Biomass measurements were made at the middle of the experimental period, in order to adjust the daily administrated feed quantity. The average specific growth rate indicates a superior fish production at F2 (1.15 %BW/day), compared to F1 (0.65 %BW/day) experimental variant. However, from the perspective of feeding strategy efficiency, the average food conversion ratio (FCR) indicates better values for F1 experimental variant (1.5 g feed/g biomass gain), compared to F2 (1.61 g feed/g biomass gain). The protein efficiency ratio (PER) registered higher values at F1 experimental variant (1.67), compared to F2 (1.53), revealing the ability of fish organism to utilize proteins, which positively affects growth rate. Therefore, as a conclusion, it can be stated that during the analyzed stellate sturgeon development stage a better cost efficiency is recorded when applying 1% BW feeding rate, although if production maximization is targeted, 2% BW feeding rate is recommended.
listelement.badge.access-status Open Access ,
Research regarding the evolution of livestock and quality of pig carcasses in Romania
(“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2019) Al.A. Casapu; Cazacu, Cristina-Petronela; Arsinte, P.R.; Nistor, Cătălin-Emilian; Hoha, Gabriel; Păsărin, Benone
This study is conducted for the period 2014 - 2018 with the purpose of monitoring the quantity and quality of the swine carcases that are classified with SEUROP system in Romania. For determining the thickness of the Longissimus dorsis and the thickness of the dorsal fat there were used the equipments OptiGrade–Pro, Fat-O-Meat'er and Ruler. The data regarding the swine livestock evolution, abatorizations and classifications performed Romania came from the reports of the Commission of Carcass Classification transmitet towards European Commission. Through the study it was found, for the year 2018, that the swine livestock decreased by over 500,000 heads. This decrease of the livestock is placed on the base of the occurrence and spread of African swine fever in most counties of the country. The study also highlighted some constant factors of the 5 years such as: increase of the average carcass weight from 80.6 to 84.2 kg and the quantity of lean meat in the carcass from 47.2 to 49.56 kg.
listelement.badge.access-status Open Access ,
Research regarding quality of milk and of some dairy products obtained into a small production unit
(“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2019) Usturoi, Alexandru; Usturoi, Marius-Giorgi; Avarvarei, Bogdan-Vlad; Raţu, Roxana-Nicoleta; Nistor, Cătălin-Emilian; Simeanu, Cristina
After establishment of milk fat content we obtain a mean value for this parameter of 3.42±0.21%, this one being with 0.22% higher than the one imposed by firm’s standard. Milk acidity was inside the limits imposed by the same standard, respectively 15–19oT, being with 2.5oT higher than the accepted minimum. As mean, the established value for this quality physical parameter was 17.5±1.98oT. The product “Telemea cow cheese” was appreciated also through its physical-chemical characteristics, observing that these ones were into product’s standard. Regarding dry matter rate, was observed that this one was very close to the one imposed by standard (min. 43%), being of 43.37±2.44%. Salt content was situated at the inferior limit for the value imposed by standard (2.5-4.0), mean determined value being 3.11±0.48%. The fat rate reported to dry matter, recorded a calculated mean value of only 41.50±1.86%, inferior, to the demands imposed by standard (42%) with 0.50%. The product “Fresh cow cheese” presented sensorial characteristics in conformity with product standard, having a white to a white-yellowish colour, with compact mass and a soft consistency. Dry matter rate determined into final product overcome the minimum imposed by standard (20%), being 21.2±2.08%. Content in protein substances for fresh cow cheese was, in mean, of 17.6±1.27%, with +0.6% higher than the minimum accepted value. Acidity of fresh cow cheese was into the limits imposed by product standard (210–220oT), being obtained a mean value of 215.31±10.14oT.
listelement.badge.access-status Open Access ,
Research on the influence of "bior" preparation on crioconservation of ram sperm
(“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2019) Darie, G.; Bradu, Nina; Iurcu, I.
The object of the study was the sperm of sheep-producers of local breeds and the drug BioR (developed by the Institute of Microbiology and Biotechnology of the Academy of Sciences of Moldova). The drug BioR was added to the commercial environment (GCJ) as an additional component in a concentration of from 1 to 10%. It has been proven that BioR is not toxic to sperm within the studied concentration. The best results in motility and survivability after thawing of sperm were obtained when BioR at a concentration of 6% was introduced into the commercial medium of GC as an additional component. The medium was tested under production conditions for insemination of sheep. It was found that when using a medium in which BioR was introduced as an additional component, the fertility of sheep inseminated by thawed seed was 47.8%. A synthetic sperm cryopreservation medium for rams consists of glucose, sodium citrate, glycerin, egg yolk, BioR and antibiotics (patent 4513).
listelement.badge.access-status Open Access ,
Research regarding the factors influencing meat production at a bovine herd
(“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2019) Maciuc, Vasile; Nistor, Cătălin-Emilian; Popescu, E.C.
The present paper proposes a bold approach to a topical issue, namely the production of beef meat. The study was conducted on a herd of 120 Aberdeen Angus cattle. Genetic and exploitative factors that influence meat production have been studied on this biological material. In conditions, of an extensive exploitation system, the medium value of 1111.16 g for the average daily gain is very good. The limits were between 869 g and 1453 g. The body weight at 200 days registered an average value of 255.5 kg with limits between 171.8 and 322.6 kg. Analyzing the results of the descendants by sex factor, we found significant differences in the average daily gain, and the body weight at 200 days, in favour of the males. Thus, the average daily gain was 1060.4 g for females and 1268.2 g for males, the difference being significant with 208 g. The body weight at 200 days evolved accordingly, in favour of males with 50.63 kg respectively, a body weight of 245.46 kg was recorded for females and 296.09 kg for males. The birth weight is positively and intermediary correlated with the mean daily gain r=0.375 (37%), the link being significant for p<0.01, but also with the index of the average daily gain r=0.315 for p<0.05. As a conclusion, in the case of the studied herd, we find that both exploitation and genetic factors have positively influenced the results on meat production indicators.