Download or read book Forage Intake and Digestion by Fistulated Steers Grazing Range as Estimated by Chromic oxid and Hignin Indicator Techniques written by M. C. Howard and published by . This book was released on 1971 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this study were to estimate the nutrient content of the diet for steers grazing a ponderosa pine range in Northern Arizona, to estimate digestibility of the forage dry matter, crude protein, energy, and acid detergent fiber with the lignin ratio indicator technique, and to estimate dry matter protein, and energy intake with the chronic oxide (Cr2O3) - lignin ratio indicator technique.
Download or read book Forage Intake and Digestion by Fistulated Steers Grazing Range as Estimated by Chromic Oxide and Lignin Indicator Techniques written by Montie Lee Howard and published by . This book was released on 1971 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of four trials were conducted each of two summers (1964 and 1965) to estimate the digestibility of the forage dry matter, crude protein, gross energy and acid detergent fiber and estimate the daily intake of the forage dry matter, gross energy, digestible energy, crude protein and digestible protein. Two different sets of three rumen fistulated, yearling steers were used each year as the experimental animals. The diet of the grazing animals was estimated by the rumen evacuation procedure with the digestibility of this diet determined by the lignin ratio technique. Nutrient intake was estimated from the digestibility data and the fecal output was determined using chromic oxide as an external indicator.
Download or read book Forage intake and digestion by fistulated steers grazing range as estimated by cronic oxide and lignin indicator techniques written by M. L. Howard and published by . This book was released on 1971 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of four trials were conducted each of two summers (1964 and 1965) to estimate the digestibility of the forage dry matter, crude protein, gross energy and acid detergent fiber and estimate the daily intake of the forage dry matter, gross energy, digestible energy, crude protein and digestible protein. Two different sets of three rumen fistulated, yearling steers were used each year as the experimental animals. The diet of the grazing animals was estimated by the rumen evacuation procedure with the digestibility of this diet determined by the lignin ratio technique. Nutrient intake was estimated from the digestibility data and the fecal output was determined using chromic oxide as an external indicator.
Download or read book Range and Wildlife Habitat Evaluation written by and published by . This book was released on 1970 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Miscellaneous Publication written by and published by . This book was released on 1970 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forage Intake and Digestion by Cattle and Sheep on a Common Dry Foothill Annyal Range written by George M. Van Dyne and published by . This book was released on 1964 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comprehensive Dissertation Index 1861 1972 Agriculture written by Xerox University Microfilms and published by . This book was released on 1973 with total page 1226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Probabilistic Estimates of Range Forage Intake written by and published by . This book was released on 1965 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1973 with total page 1244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Probabilistic Estimates of Range Forage Intake written by and published by . This book was released on 1965 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Forage intake is never measured directly in grazing studies, but estimates of mean forage intake are obtained indirectly by lignin ratio, chromogen ratio, fecal nitrogen index, or microdigestion techniques. Estimates of dietary composition are usually obtained from a group of esophageal or ruminal fistulated animals and estimates of quantity and composition of fecal output are obtained from a separate group of animals. No measure of precision is obtained with these techniques, however, because estimates of forage intake obtained thereby apply to the group rather than to individual animals. In addition to an estimate of the mean forage intake, it is desirable to have a knowledge of the distribution about that mean. A method is described in this paper for generating a population of forage intake values about the mean value of forage intake so that the nature of the distribution may be examined. The method is applied to data from range nutrition studies in which microdigestion techniques were used to calculate mean forage intake.
Download or read book U S Canadian Range Management 1935 1977 written by John F. Vallentine and published by Phoenix, Ariz. : Oryx Press. This book was released on 1978 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Determination of Intake and Digestibility of Pasture Forages Using Conventional and Indicator Techniques written by Suleyman Orhan Alpan and published by . This book was released on 1965 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Digestibility experiments were carried out with dairy heifers to determine the digestibility of orchard grass, Dactylis glomerata, and also to evaluate the accuracy of various indicator techniques in pasture digestibility experiments. Chromic oxide was used as an external indicator to predict fecal dry matter output in three digestion trials. Cut grass was fed in one of the trials and corn silage in the other two. The internal indicators fecal nitrogen and protein of feed and feces were studied in two of the trials in which one conventional and one grazing trial were involved. The experimental animals consisted of six approximately two year old Holstein heifers and six Jersey heifers of the same ages. All animals were in about the fifth month of pregnancy. In the experiments, five grams of chromic oxide in gelatin capsules were fed to the animals twice a day at 7 A.M. and 4 P.M. Solka-floc, which is a pure cellulose material, was used as a carrier for chromic oxide. Fecal grab samples were collected from the rectum of grazing animals at 6 A.M. and 4 P.M. The chromic oxide recoveries in the feces of the stall fed animals fed orchard grass ranged from 98.4 to 99.2 percent, averaging 98.8 percent. The average difference between the predicted and actual fecal dry matter output was 23.1 g. This magnitude of difference yielded a 1.01 percent error of prediction. However, chromic oxide recoveries for the silage trials were considerably lower, estimated as 79.9 and 74.9 percent for trials III and IV respectively. These low recoveries of chromic oxide resulted in a rather high error of prediction of fecal dry matter output with silages. The average errors of prediction for the grass forage dry matter intakes using fecal nitrogen and protein indigestibility techniques were found to be 1.4 and -6.4 percent, respectively. The respective differences between the average actual and predicted forage dry matter intakes were 86.1 and -405.2 g. Based on the results of this study the fecal nitrogen index technique appears to be superior to the protein indigestibility technique. The digestion coefficients of ether extracts were found to be higher for the conventional trial with pasture than for that of the grazing trial, while the reverse was true for the nitrogen free extracts. The average TDN and digestible energy values for orchard grass dry matter in the conventional trial were found to be 67.1 and 68.0 percent, respectively. The difference in estimations of the TDN and digestible energy values between total collection and fecal nitrogen technique was 0.5 percent, which may be regarded as a reasonable error in digestibility experiments. The TDN and digestible energy values of the grazing trial were slightly higher than that of the conventional trial. The digestible energy determinations were highly correlated with the calculated TDN values. It was concluded that chromic oxide and fecal nitrogen may be used effectively in pasture digestibility experiments. More research is needed to establish their use as reliable indicators with single feed stuffs, such as silages, or when combined in complete rations.
Download or read book Herbage Intake by Grazing Dairy Cows written by J. A. C. Meijs and published by Bernan Press(PA). This book was released on 1981 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: An extensive review of the literature is given of - nine possible methods for estimating herbage intake by grazing ruminants, with special attention to the sward-cutting and indirect animal methods - the factors determining the herbage intake by grazing ruminants.
Download or read book Techniques of Research in Range Livestock Nutrition written by Lorin E. Harris and published by . This book was released on 1967 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by Grassland Society of Southern Africa and published by . This book was released on 1976 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forage Evaluation in Ruminant Nutrition written by D. I. Givens and published by CABI. This book was released on 2000-05-25 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: Current pressures to maximise the use of forages in ruminant diets have renewed interest in fast, inexpensive methods for the estimation of their nutritional value. As a result, a wide variety of biological and physiochemical procedures have recently been investigated for this purpose.This book is the single definitive reference volume on the current status of research in this areaCovers all forages eaten by ruminant animals
Download or read book Evaluation of Various Indicator Techniques in Estimating Forage Intake and Digestibility by Range Cattle written by Robert Roderick Wheeler and published by . This book was released on 1962 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
