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Contributions to the study of the additional feed of bee colonies and its influence on beekeeping
No full textResearch regarding the evaluation of technological factors involved in the improvement of turkey hen meat quality
No full textAdapting the treatment of ovarian cysts according to their type in dairy cattle
No full textOvarian cysts, estimated as
the most frequent ovarian disorder in
dairy cattle, can impact the economic
aspect and trigger serious loss by
affecting the reproductive performance.
However, treatment strategies for ovarian
cysts in dairy cattle are disputed, as some
researchers favour the use of
gonadotropin-releasing hormone (GnRH)
for all cysts, whereas others recommend
this treatment only for follicular cysts,
with prostaglandin F2α (PGF2α) for luteal
cysts, but not all of the dairy cattle
responded to these regimes. Other studies
mention a spontaneous recovery for some
of the dairy cattle that present this
disorder. However, the Ovsynch protocol
appears to be the most used for treating
ovarian follicular cysts, despite low
pregnancy rates. Thus, this study’s main
purpose is to assess by analogy the
reproductive efficiency of multiparous
dairy cattle with follicular cysts after
treatment with a recommended dose of
GnRH or a further Ovsynch protocol, and
of cattle with luteal cysts after PGF2α or a
further 12-day Presynch protocol, by
comparing the reproductive responses
between treated and non-treated cattle. It
is remarkable that ten of the dairy cattle
diagnosed with ovarian cysts recovered
spontaneously without any hormonal
intervention, but the reproductive
performance indicates that treatment
should be started as soon as the condition
is diagnosed. Compared with other studies,
our approach improved the conception
(82.4% and 64.3%, respectively) and
pregnancy rates (53.8% and 50%,
respectively) in both follicular and luteal
cysts
Ultrasonic extraction for preparation of plant extracts with bioinsecticidal effects on pest from seed deposits
Get PDFThis paper describes the preparation of plant extracts using
solid-liquid ultrasonic extraction (sonoextraction), the characterization of
prepared extracts and their bioinsecticidal activity. The studied raw vegetal
material:Primula veris, Achillea millefolium, Origanum vulgare and Artemisia
absinthium, was collected from the spontaneous flora of Romania, Moldova
region. To assess the efficiency of solid-liquid sonoextraction process, the
influence of some operating parameters such as solid/liquid ratio, extraction
time, extraction temperature, and extraction efficiency was studied. The
qualitative study has in view the interpretation of UV-VIS spectra recorded for
the extracts, and the quantitative study consists in the estimation of total
polyphenols and flavonoids content of prepared vegetal extracts. The resulted
data indicate that the content of polyphenols and flavonoids is dependent of
the extraction temperature, extraction time and solid/liquid extraction ratio.
The bioinsecticidal activity of Origanum vulgare and Artemisia absinthium
extracts was evaluated on the Acanthoscelides obtectus (commonly named
as ladybug bean) using two application techniques (i.e. direct and indirect
application using a cellulose disk as a porous material impregnated with
extract that allows controlled evaporation), being registered a mortality rate
of adults in the range of 35-55%. Therefore, the studied extracts proved to
be effective in controlling ladybug bean from seed stores
Evaluation of epidural anesthesia with lidocain compared to buprenorphine and the combination of lidocaine - buprenorphine in dogs
Get PDFThe aim of our study is the comparative evaluation of epidural anesthesia by determining the antinociceptive efficacy and the modification of cardiorespiratory variables, in dogs in which a local anesthetic (lidocaine) and an opioid analgesic (buprenorphine) were injected into the epidural space separately and in combination. The solutions were administered in the epidural space to the dog as follows: lidocaine 2% (2.5 mg / kg) and buprenorphine (concentration to be added) (1.5 mcg/kg), respectively lidocaine 2% (5 mg/kc) or buprenorphine 0.3 mg/ml (3 mcg/kc). Lidocaine had excellent penetrability, rapidly producing onset (1.7 ± 0.30 min.) and onset of surgical anesthesia. However, it did not induce long-lasting sensory and motor nerve block and no satisfactory analgesia (6.0 ± 0.1.). Buprenorphine had a slow onset, but with a long-lasting analgesic effect (108.0 ± 41.6 min.). Epidural administration of opioids provides additional intra- and postoperative analgesia, in which case buprenorphine may be the drug of choice in laborious surgical procedures
Milk fever and related postpartum diseases in dairy cattle – a review
Get PDFMilk fever is a metabolic condition that occurs in dairy cattle before or immediately after parturition as a result of low
calcium (Ca++) levels in the blood (hypocalcaemia). Based on its pathological changes, milk fever (hypocalcaemia) can
be clinical or subclinical, being particularly prevalent in high-producing cows during the calving period.
The most common factors leading to milk fever include milk production, breed, parity, age, body condition score
(BCS), and the composition of the cow's diet. The economic effects of milk fever are represented by decreases in milk
production and fertility, finally resulting in culling of high-producing dairy cattle within herds. In order to establish the
diagnosis of milk fever in dairy cattle, clinical and paraclinical examinations are used.
Milk fever prevention is economically essential for dairy farmers since it helps them avoid production and culling
losses, and also increased veterinary expenses related with this condition. Numerous approaches have been introduced
in order to mitigate hypocalcaemia, which include anionic salt feeding, low-calcium diets, vitamin D supplements,
magnesium supplements, and peripartum body condition management. As a final conclusion, preventing milk fever is
crucial for overcoming disease's economic impact on the dairy industry
Ecophysiological researches concerning active principles andvaluation of some species of medicinal plants used in Hildegard von Bingen therapies
No full textThe importance of technological parameters on the sensory quality of smoked mackerel
No full textFish meat, through its biological and chemical characteristics, is, for humans, nutritious food with many benefits on the
body and is suitable for industrialization in various forms.This study aimed to make assortments of smoked mackerel,
applying a differentiated technology, ending with a sensory evaluation of the product obtained to examine the effect of
processes and recipes applied to sensory characteristics such as appearance, texture, color, and aroma and palatability of
products.The study material was purchased from a fish warehouse and transported in specific conditions (0-4°C) the
next stage consisting of staining and differentiated maturation according to the established technological file and
smoking in the meat processing microsection within USV Iași. Thus, the assortments were marinated for 12 and
relatively 24 hours in a vacuum.Sensory evaluation is a vital operation in the development of new products and for this
evaluation, 45 evaluators were part of the study, answering a questionnaire to identify the differences perceived after
different maturation presented in the datasheet.The samples matured for 24 hours were the most appreciated by the
evaluators obtaining the highest averages for the sensory characteristics of appearance, texture, color, and aroma.
According to the sensory evaluation, the samples from experimental group 2 obtained higher values than the sample
from experimental group 1
Fertilisation source and dose optimisation boost yield of durum wheat in Mediterranean climatic conditions
No full textClimate change, global
warming, environmental pollution,
greenhouse gas emissions from
agricultural fields, stagnant wheat yields
and reduced farm economic returns require
optimisation of sources and doses of plant
nutrients. A field study was conducted to
evaluate wheat response to different forms
of fertilisers and nitrogen (N) doses under
Mediterranean conditions. The field trial
was comprised of fertiliser sources,
including chemical fertilisers, compost and
leonardite, while different nitrogen levels
(0, 80, 160, 240 kg ha-1) were also tested.
The experimental variables included yield
attributes (height of the, length of the
spike, spikelets number per spike,
thousand-grain weight and grain yield). In
addition, nutritional quality attributes like
protein and starch contents were studied
along with NDVI values of wheat under
different fertilisation regimes. The trial
was executed using a randomised
complete block (factorial) design using
four replications. The results revealed that
fertiliser forms and N doses remained
ineffective for boosting yield attributes of
wheat. For nutritional characteristics of
wheat grains, a higher N dose remained
instrumental in boosting protein, starch
and wet gluten contents. Thus, 240 kg ha-1
of N dose might be recommended for
general adoption under Mediterranean
conditions; however, study findings are
limited in scope and further in-depth
studies are needed by testing organic
manures from plant and animal origins
Technical solutions regarding the rehabilitation of the irrigation system under the OUAI ”Aqua” North Soloneţ Bivolari
No full textThe pumping and pressurization SPP 1.b, situated on the Tabăra - Trifeşti – Sculeni (Iasy County) arrangment of
irrigation has been put into operation in 1983 and it serves an area of 1428 ha. Being nearly 30 years old, the hydro
mechanical installations and the related electrical installations have accumulated a high degree of wear.The technical
rehabilitation and modernization of the structural and functional elements of the hydrotechnical works performed for
water pumping aims to reduce them to the initial operating parameters, but also to modernize them, according to the
current location requirements, modern technology in the field of execution technologies currently used. It was necessary
to redesign some basic parameters for the hydromechanical technological lines, but also for the auxiliary technological
lines. Thus, it was decided to replace the electric pumps, with some new generation, with higher efficiencies, the
introduction on each pumping stage of 1-2 pumps with variable speed, to reduce energy consumption and modernize the
pumping process. The fittings (water tapss, valves) have been replaced with modern variants, facilitating the optimal
operation with a high hydraulic efficiency. The pipes on the internal network have been replaced, the measuring and
control equipment has been rehabilitated. A monitoring and automation system has been introduced to monitor the
operating process