The impact of presence of mycotoxins in feed mixtures on production results of laying hens

Plijesni su skupina mikroskopskih gljivica od kojih veliki broj proizvodi jake toksine, odnosno mikotoksine. Oni mogu biti uzročnici mnogih poremećaja kod ljudi i životinja. Kako bi se spriječio učinak mikotoksina na organizam koriste se adsorbensi koji na sebe vežu mikotoksine te se zajedno s njima izlučuju iz organizma prije nego se prošire po njemu i prouzroče štetan utjecaj. Cilj istraživanja bio je utvrditi učinak dodatka adsorbensa u krmnu smjesu na proizvodne pokazatelje kokoši nesilica i fizikalne pokazatelje kakvoće jaja. U istraživanju je korišteno 90 Hisex brown kokoši nesilica, starosti 20 do 32 tjedna. Kokoši su bile podijeljene slučajnim odabirom u 3 hranidbena tretmana: T1(kontrolna skupina hranjena komercijalnom krmnom smjesom), T2 (T1 + 2 kg adsorbensa po toni krmne smjese), a T3 (T1 + 20 kg adsorbensa po toni krmne smjese). Na temelju rezultata dobivenih u istraživanju možemo konstatirati da nije utvrđena značajna razlika između tretmana. Odnosno, dodatak adsorbenata nije imao učinak na proizvodne rezultate (konzumaciju, konverziju, nesivost, mortalitet) kao ni fizikalne pokazatelje kakvoće jaja (masa, indeks oblika, čvrstoća ljuske, visina bjelanjka, HU, udijele pojedinih dijelova u jajetu). Razlog takvih rezultata treba pripisati higijenskoj i zdravstvenoj ispravnosti krmne smjese koja se koristi u komercijalnoj proizvodnji jaja, a koja je korištena i u ovom istraživanju. Stoga bi ovakva istraživanja ubuduće trebali provesti korištenjem krmne smjese u kojoj je utvrđena prisutnost mikotoksina.Molds are cluster of microscopic fungi from which a large number produce strong toxins, or mycotoxins. They may be the cause of many pathological disorders of people and animals. To prevent the effect of mycotoxins on the body adsorbens are used and they attach mycotoxins and together with them excrete from the body before they can spread and cause damage. The aim was to determine the effect of addition of adsorbens into feed micture on egg production indicators and physical indicators of egg quality of laying hens. Testing carried out used 90 Hisex brown laying hens, aged 20 to 32 weeks. Hens were randomly selected and placed within 3 dietary treatments: T1 (control group fed with commercial feed mixture), T2 (T1 + 2 kg of adsorbens per ton of feed) and T3 (T1 + 20 kg of adsorbens per ton of feed). Based on the results obtained from this study we can conclude that there is no significant difference between treatments. Regarding that, the addition of adsorbens had no effect on production results (consumption, conversion, egg production, mortality) as well as physical indicators of egg quality (weight, shape index, shell strength, height of albumin, HU, the percentage of certain parts inside of the egg). The reason for such results should be attributed to the hygienic and sanitary safety of compound feed used in commercial egg production, which was used in this research. Therefore, this kind of research, in the future, should be carried out using a feed mixture in which was indicated the presence of mycotoxins