@article{johnson_1996, title={Global linkages in animal agriculture: New opportunities for United States agricultural universities}, volume={74}, DOI={10.2527/1996.7461386x}, abstractNote={Today's rapidly changing world offers new opportunities for Departments of Animal Science that wish to expand their international activity. Seeking a relevant role in the definition of sustainable agriculture, internationalizing courses and curricula for all students, supporting private sector enterprises at home and abroad (export promotion), maintaining collaboration with former students, and providing better information to our farmers and citizens about world conditions: these are some of the challenges now facing us. A survey of heads of departments of animal science at universities in the United States revealed that of 64 respondents, almost all report significant international activities. However, only 20% are satisfied with their present activity level, and 80% intend to seek an expanded international role. The expected benefits from international activity most often mentioned were a broadened faculty experience and a better capacity to prepare students for the 21st century. Anticipated problems are related to faculty and departmental recognition, faculty career trajectories, and continuity of work assignments. On balance, respondents overwhelmingly believe that expected benefits outweigh possible problems. Eighty percent of respondents reported a generally supportive attitude from their administration, but 75% indicated that the department itself needs to provide leadership in the search for new international linkages.}, number={6}, journal={Journal of Animal Science}, author={Johnson, W. L.}, year={1996}, pages={1386} }
 @article{johnson_djajanegara_1989, title={A PRAGMATIC APPROACH TO IMPROVING SMALL RUMINANT DIETS IN THE INDONESIAN HUMID TROPICS}, volume={67}, ISSN={["0021-8812"]}, DOI={10.2527/jas1989.67113068x}, abstractNote={Research conducted since 1980 on the nutrition and feeding of Kacang goats and Javanese Thintail sheep for meat production in Indonesia is reviewed. Feeding practices in three villages were monitored, along with animal production criteria, to better understand the limitations imposed by feed resource availability. Village and experiment station data showed that native or cultivated tropical grasses fed alone did not support growth of young goats and that lambs fed napier grass alone grew at no more than 20 to 25 g/d. Supplementing these grasses with tree legume foliage or wilted cassava leaves at modest levels improved ADG to about 50 g for lambs and 20 g for kids. Faster gains were obtained with higher intakes of tree legume foliage, or with combinations of higher-energy supplements such as rice bran, cassava meal and molasses. A response to mineral supplementation also was shown. Reproductive performance of North Sumatran ewes grazing a native pasture under rubber trees also was improved with supplementation. These experiments show that economically effective options exist for improving small ruminant diets in the humid tropics.}, number={11}, journal={JOURNAL OF ANIMAL SCIENCE}, author={JOHNSON, WL and DJAJANEGARA, A}, year={1989}, month={Nov}, pages={3068–3079} }
 @article{johnson_guerrero_pezo_1973, title={CELL-WALL CONSTITUENTS AND IN-VITRO DIGESTIBILITY OF NAPIER GRASS (PENNISETUM-PURPUREUM)}, volume={37}, ISSN={["1525-3163"]}, DOI={10.2527/jas1973.3751255x}, abstractNote={Growth stage and seasonal influences on the chemical composition and in vitro digestibility of napier grass (Pennisetum purpureum) were studied in the sub-tropical desert climate of Peru's central coast. Important seasonal differences in the effects of plant maturity were noted. Dry matter concentration, steadily increasing with maturity, was generally higher in summer and lower in winter, compared with other seasons. The expected decline in crude protein with maturity was more rapid in the warmer seasons than in winter. Likewise, the levels of total cell-wall constituents (CWC), acid-detergent fiber, and cellulose increased more rapidly in the warmer seasons than in winter. The CWC fraction was less digestible in winter than in spring or fall, but in vitro true digestibility of dry matter (DMD) was lower in summer than in other seasons at comparable ages of the forage. Using CWC and lignin levels to predict %DMD resulted in a coefficient of determination equal to 0.79; holocellulose or lignin plus silica fractions were less reliable predictors of digestibility. The results demonstrate the desirability of early utilization of napier grass grown under Peruvian coastal conditions, at no later than 12 weeks of age in summer but at possibly slightly longer intervals in winter. Excess summer forage possibly could be carried over in the field for winter use, but winter and spring forage should be harvested before the onset of summer.}, number={5}, journal={JOURNAL OF ANIMAL SCIENCE}, author={JOHNSON, WL and GUERRERO, J and PEZO, D}, year={1973}, pages={1255–1261} }