An investigation was conducted to evaluate the bioavailability of different Se sources on fattening lambs. Forty-eight lambs, divided in 3 groups, were ad libitum fed the same diet without Se ...addition (control, C), or with a supply of 0.03% sodium selenite (IS) or 0.03% of organic selenium (OS; Sel-Plex
TM
). Growth performances were not affected by treatment. With respect to C, OS significantly increased Se content of blood (P<0.01), liver (P<0.01) and GSH-Px enzyme activity (P<0.01). OS also significantly increased blood (P<0.01) and liver (P<0.05) Se content with respect to IS. It was concluded that Se in organic form had a better bioavailability compared to the inorganic form.
Blood samples for determining of epinephrine concentration and biochemical parameters in the blood serum of wild boars were taken from 42 healthy wild boars, both sexes, during the hunting season. ...All animals in good condition, body weight 20 to 95 kg, were divided into two groups up to 50 kg (group A) and up to 95 kg (Group B). Epinephrine concentration was determined by ELISA twice: one week after taking samples and a month after repeated freezing at -80°C. It was higher in relation to the reference value of domestic pigs and human (109.45 pg/ml in A and 119.54 pg/ml in B group). Repeated freezing and re-analysis after a month were resulted in lower concentrations of epinephrine (12% in young and 11.17% in adult animal), but without statistical significance (P>0.05). Biochemical analysis results’ show increased glucose and triglycerides concentrations compared to the reference values, while other indicators were observed within or slightly increased referring to the normal range. The correlation between glucose and epinephrine was not determined.
The study examined the effect of raw and roasted cereals (corn, oat and barley) and soybean in diet on growth performance and blood parameters of lambs fattening. Totally 60 lambs after ablactation ...at average of 50 days, were tested and equally divided into three groups: an experimental I (E I), experimental II (E II) and a control (C) group. The fattening period lasted 56 days. Lambs of the C group were fed on mixture with crude forages, those from the E I on mixture with roasted cereals and lambs of the E II on mixture with both roasted cereals and soybean. The lambs from E I and E II groups grew faster (by 13.62 and 19.40 %), gained higher final body weight (by 6.72 and 8.08 %) and spent less food per kg of daily gain weights (by 14.03 and 13.24 %) although feed consumption in E I was lower (by 2.33 %) but in E II higher (3.49 %) in comparison with the C group. The blood serum concentrations of cholesterol-total and cholesterol-HDL were lower for lambs EI groups compared with lambs C and E II groups. ALP activity was higher for lambs EI and EII groups compared with C group. Urea concentrations were significantly (P<0.05) lower, and that of albumin higher in E II group compared to C group. There were no differences among groups for the serum minerals content, other biochemical indicators and enzymes. Obtained differences in slaughter properties of lambs (carcass weight and dressing) indicate their better productive effects. Concerning the gained production results may be concluded that the use of roasted cereals and soybean in feed mixture in lambs fattening is justified.
Prirodni zeolit klinoptilolit je mikroporozni alumosilikatni mineral čvrste anionske rešetke, otvorene trodimenzionalne strukture u čijim porama su izmjenjivi kationi. Dodatak zeolita u obroku sve se ...više primjenjuje u hranidbi životinja. Cilj pokusa bio je ustanoviti utjecaj dodatka mikroniziranog zeolita klinoptilolita na zdravlje vimena i sastav mlijeka krava različitih laktacija u uvjetima robotizirane mužnje. Krave su hranjene parcijalnim obrokom za krave u mužnji (PMR) s dodatkom 200 g po kravi mikroniziranog zeolita klinoptilolita (Zeotex®, Mevex, Hrvatska) i koncentratom na robotskoj jedinici za hranjenje, tijekom 42 dana pokusa. Značajno (P<0,05) manji broj somatskih stanica utvrđen je u mlijeku krava 1. i 2. laktacije nakon 42 dana konzumacije zeolita u odnosu na početak pokusa. Udio mliječne masti u mlijeku krava 1. laktacije bio je značajno (P<0,05) veći nakon 42 dana konzumacije zeolita u odnosu na početak i 21. dan pokusa. Značajno (P<0,05) veća koncentracija ureje u mlijeku utvrđena je nakon 21 dan konzumacije zeolita okusa u odnosu na početak pokusa kod krava nižih laktacija. Značajno (P>0,05) smanjenje broja somatskih stanica nakon 42 dana primjene zeolita u obroku mliječnih krava potvrđuje sposobnost zeolita da pozitivno utječe na zdravlje vimena. Smanjenje broja somatskih stanica samo kod krava u 1. i 2. laktaciji daje naslutiti ograničenu sposobnost zeolita prema kroničnim infekcijama vimena kod krava viših laktacija. Značajno (P<0,05), ali prolazno povećanje ureje u mlijeku 21. dana pokusa, vjerojatno je odraz prilagodbe mikropopulacije buraga na novonastale uvjete hranidbe dodatkom zeolita. Povećanje udjela mliječne masti kod krava u prvoj laktaciji govori u prilog pozitivnog djelovanja zeolita na poboljšanje kvalitete mlijeka.
Natural zeolite clinoptilolite is a microporous aluminosilicate mineral of an open three-dimensional solid anionic lattice structure with pores of exchangeable cations. The addition of zeolite in the diet is increasingly being used in animal nutrition. The aim of the experiment was to establish the effect of micronized clinoptilolite zeolite on udder health and milk composition of cows of different lactations under conditions of robotic milking. Cows were fed a partial mixed ration (PMR) for milking cows with the addition of 200 g per cow of micronized clinoptilolite zeolite (Zeotex®, Mevex, Croatia) and concentrate on a robotic feeding unit for 42 days of the experiment. Significantly (P <0.05) lower number of somatic cells was found in the milk of 1st and 2nd lactation cows after 42 days of zeolite supplementation compared to the beginning of the experiment. The content of milk fat in the milk of lactating cows was significantly (P <0.05) higher on the 42nd day of the experiment compared to the beginning and the 21st day of the experiment. Significantly (P <0.05) higher urea concentration in milk was found on the 21st day of the experiment compared to the beginning of the experiment in lower lactating cows. A significant (P> 0.05) reduction in the number of somatic cells after 42 days of zeolite application in the diet of dairy cows confirms the ability of zeolite to positively affect udder health. The decrease in the number of somatic cells in cows of only 1st and 2nd lactation suggests a limited ability of zeolites to chronic udder infections in higher lactating cows. Significant (P <0.05), but transient increase in urea in milk on day 21 of the experiment, is probably a reflection of the adaptation of the rumen micropopulation to the new feeding conditions with the addition of zeolite. The increase in the content of milk fat in cows in the first lactation speaks in favor of the positive effect of zeolite and the improvement of milk quality.
Concentration of selenium in soil, pasture, blood and wool of sheep Antunovic, Z., Faculty of Agriculture, Osijek (Croatia); Steiner, Z.D., Faculty of Agriculture, Osijek (Croatia); Vegara, M., University of Life Science (UMB), As (Norvay) ...
Acta veterinaria (Beograd),
(2010), 2010-00-00, Volume:
60, Issue:
2-3
Journal Article
Peer reviewed
Open access
Investigation have been conducted on Slavonia during a three year period on six locations, two per each year during June (in the first year = Vinkovci and Beli Manastir; in the second year = Valpovo ...and Djakovo; in the third year = Slatina and Donji Miholjac). Six samples from the soil, pasture, and sheep wool, as well as 15 sheep blood samples were taken from each locality. There was a deficit of selenium content in the soil on four locations in the second and third year and an adequate content on locations Vinkovci and Beli Manastir in the first year. The locality Valpovo was characterized by the highest selenium concentration in pasture, blood and wool of sheep, as well as by the lowest blood enzymes activities when compared to other locations. Selenium concentrations in pasture was under the critical range on all locations, except the locality Valpovo in the second year. Serum selenium concentrations on all locations were below the adequate range for adult sheep and differed among locations. Activities of enzimes in blood of sheep showed severe selenium defficiency. Selenium concentration in the wool were under the critical level on all locations. The results regarding selenium in wool showed that, apart from blood selenium and activities of plasma enzymes, wool should also be taken in account as a selenium status indicator.
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IZUM, KILJ, NUK, PILJ, PNG, SAZU, UL, UM, UPUK
Commercial crossbred pigs weaned at four weeks were allocated into three equal groups. The experimental group 1 was primed intramuscularly, and the experimental group 2 was primed per os, with ...levamisole at an immunostimulatory dose of 2.5mg/kg once daily, for three consecutive days, and controls received saline. Venous blood samples from all pigs were collected after the last levamisole or saline dose was given (day 0), and 35 days later (day 35) for flow cytometry analysis. The results obtained by immunophenotyping of isolated circulating lymphocytes on day 35 indicate that priming by levamisole of weaned pigs selectively recruited CD4
+
, CD8
+
and CD4
+
CD8
+
, but not CD21
+
cells in the systemic circulation.
The research has been made on 20 Black Slavonian Pigs in both ways of keeping them (indoor, outdoor). The pigs have been fed up to 135 kg body weight. The pigs in the outdoor system have been held on ...a natural pasture ground. Other than pasture, the pigs have consumed, over the summer period, the food offered on stubble-fields after the harvest (barley, wheat) and over the winter times after corn harvest. They had only minimal corn consumption; mostly during the winter (average daily consumption was 0.15 kg). Dissection of cold (+40C) right sided pig body composition has been made by the modified Weniger et al (1963) method. The meat quality has been determined on a long back muscle sample (musculus longissimus dorsi- MLD) taken berween 13th and 14th rib. The pig carcasses in the outdoor system had a very significant (P<0.01) absolute and relative leg share, less belly-rib share and higher meat quantity. Commercially, more valuable parts-legs and back had a greater share of muscle tissue in pigs' carcasses in the outdoor system. The meat of the pigs in the outdoor system had no signifficant differences from the pigs in the indoor system, concerning the pH1, pH2, water holding capacity, colour and marbling. However, the meat of the pigs in the outdoor system had higher content of crude fat from the pigs in the indoor system.
This study investigated the biochemical and hematological parameters (at the beginning, after 90 days, and at the end of the experiment) of the pure genotype Black Slavonian (BS) pigs and crossbreeds ...of Black Slavonian and Duroc (BSxD) pigs, fed the same diet and kept under the same extensive free-range conditions during 200 days of the experiment. In the study, BS and BSxD pigs showed differen- ces in blood protein levels, hinting at dietary disparities. Glucose and triglyceride levels differed between the two groups, affecting energy availability and fat depo- sition. BS pigs showed higher white blood cell counts, while BSxD pigs exhibited more rapid metabolic activity. Alkaline phosphatase activity declined over time, with variations between the groups. Phosphorus and magnesium concentrations decrea- sed with pig growth, reflecting changes in metabolic demands. Hemoglobin, hema- tocrit, and red blood cell counts varied between the groups. MCV and MCH values in BSxD pigs indicated rapid red blood cell production. Platelet counts fluctuated with age. This study offers insights into the influence of genetic characteristics and growth rates impact biochemical and hematological parameters of pigs kept under free-range conditions, aiding swine population management.
The present work was undertaken in order to provide data of the biochemical parameters imported hinds, settled in confined area and restricted pasture. It also provided data about differences between ...hinds age categories. Blood samples were collected from 82 red deer hinds aged between 1 and 11 years, kept at 7.5 ha at the altitude of 87 m, 6 months after import from Hungary. While mean total protein was lower, glucose level was higher in our investigation in relation to other authors (Poljičak-Milas, 2004, Bouda et al, 2000). It is probably due to the insufficient grazing, stress condition and parasite infection.
Zeolites are crystalline hydrated aluminosilicates of alkali and alkaline earth cations, consisting of three-dimensional frameworks of SiO4and AlO4tetrahedra linked through the shared oxygen atoms to ...form an open crystal lattice with approximately uniform pores of molecular dimensions. The dietary use of naturally occurring or synthetic zeolites has been reported to improve feed efficiency, thus leading to a beneficial growth response in pigs. Three groups of weaned piglets (N=60), crossbreed (LWxSL)x Pietrein, the same sex proportions, aged 28 to 70 days were involved in the trial. Tribomechanically activated zeolite clinoptilolite (0.2% was added to the first experimental group, modified clinoptilolite was added to the second experimental group in the same concentration. Piglets in all groups were of similar body weights during both experimental periods. Plasma glucose, urea, total protein, sodium, potassium, chloride concentration were changed with the diet added modified clinoptilolite.
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