Effectiveness of toxin adsorbents on Diazinon residues in grape pomace and its effects on intake, and ruminal and blood parameters in lactating goats

The aim of this research was to determine effects of different toxin adsorbents on the amount of Diazinon residues and effectiveness of these additives on ruminal parameters and some blood metabolites in Mohabadi lactating goats fed with high white grape pomace-based diets (27.71%). In this study, 20 lactating goats with 50±5 kg body weight were used in a completely randomized design with 4 treatments and 5 replications. Experimental treatments included diets containing: 1- White grape pomace without toxin adsorbent or control group 2- Grape pomace processed with Mycofix-Plus toxin adsorbent 3- Grape pomace processed with Bio-Tox toxin adsorbent 4- Grape pomace processed with Bio-Acid toxin adsorbent. Adding adsorbent compounds of toxins to diets with high levels of grape pomace reduced the amount of Diazinon in the diet (P˂0.05), so the highest amount of Diazinon in control treatment (4.08 mg/kg) and the lowest amount of toxin was observed in treatment group treated with Bio-Tox supplement (0.67 mg/kg). As a result of adding different toxin adsorbents there was an increase in the amount of dry matter intake (DMI), rumen N-NH3, total VFA, propionic acid, glucose and urea concentration (P˂0.05). Adsorbents did not have a significant effect on the Rumen protozoa population (p>0.05). Adding different adsorbents reduced Non-esterified fatty acids (p<0.05). There was not any significant difference among the investigated groups in terms of the concentration of β-hydroxybutyrate (BHBA), total protein and albumin as a result of adsorbent use (p>0.05). As a conclusion, the amount of the adsorbent and deactivating compounds of toxins in diets with high levels of grape pomace reduced the amount of Diazinon and improved feed intake, rumenal and blood parameters in Mahabadi's lactating goats.