انجمن تغذیه دام-طیور و آبزیان کرمان

Author links open overlay panelMohadesah Karimian, Ahmad Riasi, Ebrahim Ghasemi, Saeid Ansari Mahyarihttps://doi.org/10.1016/j.smallrumres.2024.107201Get rights and contentAbstractThe objective of this study was to determine some effects of omega-6/omega-3 ratio by adding low level of calcium soap of fish oil (CSFO), calcium soap of soybean oil (CSSO) with or without a mixture of pennyroyal and rosemary essential oils (EO) on feed intake and apparent total-tract digestibility of nutrients, rumen fermentation characteristics, rumen bacteria community, back fat thickness changes, feeding behavior and blood metabolites in peripartum ewes. For this purpose, 40 pregnant Shall ewes in a completely random design were used from 21 d before to 80 d after lambing. Four experimental groups were: (1) diet containing CSSO – EO; (2) diet containing CSSO + EO; (3) diet containing CSFO – EO; and (4) diet containing CSFO + EO. The fat sources and a mixture of EO were added to rations based on 1.3% of DM and 0.6 g/kg of DM, respectively. Results showed that the interaction of fat sources and EO (Fat×EO) affected (P0.05) some characteristics such as feed intake, nutrient digestibility, butyrate and NH3-N production in rumen, rumen bacteria population; and blood urea, total protein and globulin. Moreover, supplementation the mixture of EO increased (P0.05) feed intake, total apparent tract digestibility, ruminating and chewing behavior and the plasma glucose level. Also, EO caused an increase (P انجمن تغذیه دام-طیور و آبزیان کرمان...