TY  - JOUR
T1  - Use of <I>in vivo</I>, <I>in situ</I> and <I>in vitro</I> Gas Production Techniques toEvaluate Nutritive Value of Alfalfa Hay in Sheep
AU - , A. Mirzaei Aghsaghali AU - , N. Maheri Sis AU - , A. Mirza Aghazadeh AU - , A. R. Safaei 
JO  - Journal of Animal and Veterinary Advances
VL  - 6
IS  - 8
SP  - 964
EP  - 970
PY  - 2007
DA  - 2001/08/19
SN  - 1680-5593
DO  - javaa.2007.964.970
UR  - https://makhillpublications.co/view-article.php?doi=javaa.2007.964.970
KW  - In vivo
KW  -In situ
KW  -in vitro gas production
KW  -alfalfa
KW  -sheep
AB  - The nutritive value of alfalfa (variety of Hamedani) was evaluated at late maturity (mid to late bloom). The <I>in vivo</I> digestibility of the hay was determined by conducting digestibility and respiration trials in three Gezel rams. Dry matter, organic matter and protein degradability of the hay was determined by nylon bag technique and <I>in vitro</I> Organic Matter Digestibility (OMD) and Metabolizable Energy (ME) content were determined by Gas production technique. The results showed that the crude protein, Neutral Detergent Fiber (NDF) and Acid Detergent Fiber (ADF) content of alfalfa hay were 15.8, 43.1 and 29.4%, respectively. <I>In vivo</I> Dry Matter (DMD), Organic Matter (OMD), Crude Protein (CPD) digestibilities and ME content in alfalfa hay were 65, 66.7, 64% and 9.6 MJ per kg DM, respectively. <I>In situ</I> DM, OM and CP effective degradability at a rate 0.02 h <SUP>1</SUP> were 64, 61.23 and 49.6%, respectively. Gas production technique OMD and ME content were 71.2% and 10.69 MJ per kg DM. Results obtained with nylon bag technique were confirmed by the <I>in vivo</I> experiments involving the alfalfa hay samples.
ER  -