Download steam colonize11/19/2023 ![]() Une fois sectionné, le blé est plus sensible à la digestion microbienne, suivi par l'orge, le sorgho et le maïs respectivement. La digestion in sacco de matière sèche du grain entier (W) est plus faible que celle du grain H ou Q. On a mis de l'orge ( Hordeum vulgare L.), du maïs ( Zea mays L.), du sorgho ( Sorghum bicolor (L.) Moench) et du blé ( Triticum aestivum L.) dans des sacs de nylon dans le rumen d'un bouvillon fistulé. Key words: Cereal, rumen bacteria, digestion, processing, concentrate RésuméĬette étude a pour objet d'examiner la digestion et la colonisation microbienne de grains de céréales entiers (W), coupés en deux (H) et en quatre (Q) parties dans le rumen. The sequential colonization of the endosperm, culminating in the establishment of complex microbial consortia, is required for the digestion of cereal grains. In contrast, regions of the germ and horny endosperm in maize were not colonized. After 24 h of exposure in the rumen, the endosperm of barley, wheat and sorghum was colonized by a variety of rumen bacteria. Initial colonization (2 h) of the endosperm of H and Q grains by rumen bacteria tended to be between large starch granules. Fracturing of the pericarp is necessary to allow rumen bacteria to gain access to the rapidly digestible nutrients of the endosperm. Scanning electron microscopy showed that microbial colonization of W grain was restricted to fractured areas of the pericarp. Once sectioned, wheat was most susceptible to microbial digestion followed by barley, sorghum and maize, respectively. ![]() In sacco DM disappearance (ISDMD) of W grain was lower ( P < 0.001) than that of H or Q grain. Barley ( Hordeum vulgare L.), maize ( Zea mays L.), sorghum ( Sorghum bicolor (L.) Moench), and wheat ( Triticum aestivum L.) were placed in nylon bags in the rumen of a fistulated steer. The objective of this study was to examine the microbial digestion and colonization of whole (W), halved (H) and quartered (Q) cereal grains within the rumen.
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |