Impact of replacement alfalfa hay with Coronilla orientalis hay on digestibility, methane emissions, and microbial protein synthesis in a total mixed ration

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Selçuk B., Bilal Y., Bakır T., Kurt A. N., Kurt Ö.

VIII. International Congress on Domestic Animal Breeding, Genetics and Husbandry, Szeged, Hungary, 2 - 04 September 2025, pp.208-213, (Full Text)

  • Publication Type: Conference Paper / Full Text
  • City: Szeged
  • Country: Hungary
  • Page Numbers: pp.208-213
  • Open Archive Collection: AVESIS Open Access Collection
  • Ondokuz Mayıs University Affiliated: Yes

Abstract

The aim of current experiment was to determine the effect of replacement of alfalfa hay with Coronilla orientalis hay in ruminant diets on the fermentation parameters such as gas production, methane (CH4) production, true digestible dry matter (TDDM), true digestibility (TD), partitioning factor (PF), microbial protein (MP), and efficiency of microbial protein using in vitro gas production technique. The alfalfa hay was replaced with C. orientalis hay in a diets at the ratio of 0, 10, 20 and 30%. Partial substitution of alfalfa hay with C. orientalis hay a significant effect on only the GP (ml)/Incubated amount among the fermentation parameters and microbial protein values (P < 0.005). However, there was no significant difference between the groups in terms of other parameters (P > 0.05). C.orientalis hay exhibited similar characteristics with alfalfa in terms of the parameters examined. However, in vitro findings in this study showed that C. orientalis hay had a low anti-methanogenic effect with increasing levels of substitution of alfalfa hay for lamb diets. However, the results obtained in in vitro studies need to be tested with in vivo studies.