Efektif Mikroorganizma ve Karahindiba Ekstraktının Buzağılarda Performans Üzerine Etkisi.

In this study, it was aimed to determine the effects of effective microorganism (EM) and dandelion extract (KH) on performance [live weight (CA), live weight gain (CAA), feed conversion ratio (FLF), body dimensions] rumen volatile fatty acid in calves. In the study, a total of 80 calves were included in a control group and three experimental groups (with similar breeds (10 Holstein, 10 Simental), age (7±3 days), body weight (40±5 kg), and gender (10 males, 10 females). EM, KH and EM + KH) were divided into four groups with 20 calves in each group. The feeding programs of all the calves in the study were the same, and unlike the control group, the calves in the experimental group were given 10 ml of EM per calf per day, and 5 g of dandelion extract in the KH group, and 10 ml of EM and 5 g KH in the EM + KH group. way drunk. It was determined that the administration of KH, EM or KH+EM to Simmental calves did not significantly affect the performance parameters (CA, CAA, YT, YY), body measurements and rumen VFA (acetic acid, butyric acid, propionic acid) ratio. On the other hand, it was determined that the administration of CH to Holstein calves significantly increased feed consumption. It was determined that the administration of CH to Holstein calves in the pre-weaning period did not affect the feed conversion ratio, but the administration of EM or CH+EM negatively affected the feed conversion ratio. HR administration to Holstein calves in the pre-weaning period decreased the rump width and daily rump width increase, but the treatments showed that rumen VFA levels, withers height, rump height, body tip, body depth and chest circumference, and daily withers height increase, rump height increase, body It was noted that it did not affect the increase in length, increase in body depth and increase in chest circumference. As a result, the number of studies in which both plant extracts and probiotics and prebiotics were used as feed additives in ruminants are quite insufficient to form a definitive opinion on the effects of these additives, and it is thought that much more studies should be done in ruminants [ABSTRACT FROM AUTHOR]