Abstracts 
                          Conference  on  Rumen  Function 
                                  Volume  23,  1995 
                              44  Years  or    Interaction 
                                     1951-1995 
           23rd  Biennial  Conference  on  Rumen  Function 
           Chicago,  Illinois 
           November  14-16,  1995 
         This  proceedings  publication  is  a  courtesy  of 
                Purina  Mills,  Inc. 
               St.  Louis,  Missouri 
                      ® 
                            23rd BIENNIAL 
                 CONFERENCE ON RUMEN FUNCTION 
                               1951-1995 
         Welcome to the 23rd Biennial Conference on Rumen Function. The Rumen Function Conference 
         has been meeting in the Congress Hotel since November 1951. The Conference originally focused 
         on the problem of bloat, and this aspect of rumen function was a central theme until 1961. Since 
         this  time,  the Conference has  broadened its  program to  other factors  which  influence rumen 
         fennentation and physiology. 
         In  the early days, the panel discussions were informal presentations of recent observations and 
         theories. As the Conference grew in attendance, the participants were asked to deliver more fonnal 
         podium presentations. A poster session was added in 1987. 
         H.  W.  Marston, ARC/USDA, served as Conference Chairman from 1951  until  1957 and from 
         1961  to  1965.  N.  R.  Ellis. ARC/USDA, was Chairman of the  1959 meeting.  C. R  Richard, 
         CSRS/USDA, assumed the  Chairmanship in  1967  and  served until  1983.  M.  J.  Allison. 
         ARS/USDA then served as Chairman from 1985 to 1989. 
         I hope that this current Conference will provide a stimulating and interesting forum. 
         Sincerely, 
        r~ 
         Research Microbiologist, USDA 
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                                                    Agenda 
               November  14,  1995 
               8:00 .  lf:30 pm    Mixer in Great Hall.  PosterS may be presented at this rime. 
               November  10,  1993 
               Nutrition-Agronomy  Panel 
               9:00  Brief introduction by James B. Russell 
               9: 15  #8    MODEL OF HYDROGEN ION FLOW TIIROUGH TifE RETICULORUMEN. 
               M. S. Allen, Dept. of Animal Science, Michigan State University, East Lansing, Ml 48824 (517-
               432-1386) 
               9: 30  #IO   THE USE OF NUMERICAL ME1HODS TO INTEGRATE A LOGISTIC MODEL 
               OF SUBSTRATE DIGESTION WITH AN EXPONENTIAL MODEL OF PASSAGE. M.C. 
               Barry, Department of Animal Science, Cornell University, Ithaca* NY 14853 (607-255-3973) 
               9:45  #4     INTAKE AND DIGESTION OF ORCHARDGRASS AND ALFAI.FA $II.AGES 
                         wmI CELLULASE, FORMIC ACID, AND INOCULANT. E. M. G. Nadeau, D. R. 
               lREATED 
               Buxton,  J.  R.  Russell,  E.  Lindgren,  and  P.  Lingvall.  Dept.  Agronomy,  USDA-ARS,  Dept. 
               Animal Science, Iowa State Univ., Ames, IA 50011; Dept. Animal Nutt:.  and Mgmt., Swedish 
               Univ. Agric. Sci., Uppsala, Sweden (515-294--5076) 
               10:00 #13    CRYOGENICAllY PROTECTED AND FRESH RUMEN INOCULUM FOR 
               DIGESTIBILITY STUDY. O.A. Ayangbilel, J.C. Meierl, and M.K. \bgell; J.  Robenson2; 
                                           4  1 
               A.R. McElroy3; A.R. Komarck    Analab, Division of Agri-King Inc., Fulton, n., 61252 (815-
               589-2525);  2
               3           Dept. of Animal Science, Cornell University, Ithaca, NY  14853  (607-255-4478); 
                Plant Research Center, Agriculture and Agri- food Canada. Ottawa, Ontario KlA OC-6 (613-759-
                     4
               1305);  ANKOM, Fairpon, NY 14450  (716-425-3940) 
               10: 15 #1    EFFECT OF NITROGEN SUPPLEMENTATION ON IN VITRO DIGESTION 
               KINETICS OF PERENNIAL GRASSES. D. J. R. Cherney and J. H. Cherney.  Depanments of 
               Animal Science and Soil, Crop, and Attnospheric Sciences, Cornell University, Ithaca, NY  14853 
               cro?-255-0604) 
               10:30 Brief break 
               11:00 #7     EFFECT OF MATURITY ON DIGESTION KINETICS OF WATER-SOLUBLE 
               AND WATER-INSOLUBLE FRACTIONS OF ALFALFA AND BROME. B. Stefanon, A.  N. 
               Pell•, and P. Schofield, Dipartimento di Scienzc delle Produzioni Animali, Univcrsita' degli Studi 
               di Udine, Udine, Italy and Dept. of Animal Science, Cornell University, Ithaca, NY 14853. (607)-
               255-2876. 
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