University of Guilan Animal Production Research 2252-0872 7 1 2018 05 22 Assessing effect of climate conditions on nutritive value, gas production and degradability parameters of cultivated alfalfa in two regions of mountainous and low land at different growth levels Assessing effect of climate conditions on nutritive value, gas production and degradability parameters of cultivated alfalfa in two regions of mountainous and low land at different growth levels 1 11 2853 10.22124/ar.2018.2853 FA E. Vali Former MSc. Student of Animal Science Department, Faculty of Agriculture Science and Natural Resources, Ganbad Kavous Universty, Gonbad, Iran Y. Mostafaloo Assistant Professor of Animal Science Department, Faculty of Agriculture Science and Natural Resources, Gonbad Kavous University, Gonbad, Iran J. Bayatkouhsar Assistant Professor of Animal Science Department, Faculty of Agriculture Science and Natural Resources, Gonbad Kavous University, Gonbad, Iran M. Moslemipoor Assistant Professor of Animal Science Department, Faculty of Agriculture Science and Natural Resources, Gonbad Kavous University, Gonbad, Iran Journal Article 2015 07 01 A study was conducted in order to compare the nutritive value, fermentation and degradability parameters of mountainous and plain alfalfa areas at different growth stages (before flowering, flowering and after flowering) at secondary harvest in four experiments.Alfalfa samples were randomly taken from a second species of the mountainous region (Mountain alfalfa meadows of Barfchal in Minoodasht) and plain (alfalfa plain around the Gonbad Kavous) collected and then transferred to the laboratory. The samples were dried for 48 h at 65^°C and with a two-millimeter sieve were milled. Results showed that mountainous alfalfa compared with mountainous alfalfa had higher ether extract, organic matter and crude protein. Extent and rate of gas production were highest at before flowering stage in both mountainous and plain Alfalfa (<em>P</em><0.05). Mountainous alfalfa at flowering stage and plain alfalfa at after flowering stage had highest and lowest quickly degradable fraction of dry matter (<em>P</em><0.05). Results from this experiment showed crude protein and ether extract were higher and ash, ADF and NDF were lower in mountainous alfalfa ‌than plain alfalfa. Generally, it was concluded that climatic conditions could be improved positively nutritive value of mountainous alfalfa compared with plain alfalfa. A study was conducted in order to compare the nutritive value, fermentation and degradability parameters of mountainous and plain alfalfa areas at different growth stages (before flowering, flowering and after flowering) at secondary harvest in four experiments.Alfalfa samples were randomly taken from a second species of the mountainous region (Mountain alfalfa meadows of Barfchal in Minoodasht) and plain (alfalfa plain around the Gonbad Kavous) collected and then transferred to the laboratory. The samples were dried for 48 h at 65^°C and with a two-millimeter sieve were milled. Results showed that mountainous alfalfa compared with mountainous alfalfa had higher ether extract, organic matter and crude protein. Extent and rate of gas production were highest at before flowering stage in both mountainous and plain Alfalfa (<em>P</em><0.05). Mountainous alfalfa at flowering stage and plain alfalfa at after flowering stage had highest and lowest quickly degradable fraction of dry matter (<em>P</em><0.05). Results from this experiment showed crude protein and ether extract were higher and ash, ADF and NDF were lower in mountainous alfalfa ‌than plain alfalfa. Generally, it was concluded that climatic conditions could be improved positively nutritive value of mountainous alfalfa compared with plain alfalfa. https://ar.guilan.ac.ir/article_2853_b1aecc06a03d15a8f60f8b00d59fbd40.pdf