Download or read book The Evaluation of Forage Systems for Fall Calving Cows written by James Christopher Forcherio and published by . This book was released on 1986 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Year round Grazing Systems for Fall and Spring calving Beef Cows written by Nicole Anne Janovick and published by . This book was released on 2002 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two grazing systems were evaluated over three years to compare the amounts of hay fed, cow weight and condition score changes, growing animal production, and effects of management systems on the mass and nutritive value of forages. In a minimal land (ML) grazing system, replicated 8.1-ha smooth bromegrass-orchardgrass-birdsfoot trefoil (SB-OG-BFT) pastures were rotationally stocked with six spring-calving cows and calves. Excess forage was harvested as first-cutting hay, then the entire area was rotationally stocked the rest of the season. At termination of summer grazing, cows were fed hay in a drylot. In the year-round (YR) grazing system, 8.1-ha SB-OG-BFT, 6.1-ha smooth bromegrass-red clover (SB-RC), and 6.1-ha tall fescue-red clover (TF-RC) pastures were stocked with six spring-calving cows and calves, 12 stocker animals (previous season's calf crop) and six fall-calving cows. First-cutting hay was harvested from TF-RC and SB-RC pastures simultaneous to the ML system. Second-cutting forage was strip-grazed by cows, while stocker animals remained in SB-OG-BFT pastures. Stocker animals were removed from pastures and finished and cows were again stocked in SB-OG-BFT pastures, while forage was allowed to accumulate in TF-RC and SB-RC pastures. During winter, spring-calving cows sequentially strip-grazed corn crop residue fields and stockpiled SB-RC pastures. Simultaneous to initiation of corn crop residue grazing, fall-calving cows with calves strip-grazed stockpiled TF-RC pastures. Hay was supplemented during winter when weather conditions limited grazing. Fall-calving cows had greater (P [Less than or equal to symbol] 0.03) body condition scores at all production stages except post-breeding (P = 0.13) and post-weaning (P = 0.53) compared to either group of spring-calving cows. Total growing animal production was 27 kg/cow greater (P = 0.01) from the YR grazing system than the ML grazing system. The amount of hay fed in the ML grazing system was 896 kg DM/cow-stocker pair greater (P
Download or read book Development and Evaluation of a Bio economic Model for Simulating Forage beef System Performance Under Risk Conditions written by William D. McBride and published by . This book was released on 1991 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Economic Analysis of Forage and Beef Systems in South Central Texas written by Don L. Parks and published by . This book was released on 1978 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis of Two Alternative Management Systems for the Production of Fall Born Beef Calves in Western Oregon written by John Gerald Rosecrans and published by . This book was released on 1981 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two management systems were evaluated in terms of the effects on calf growth, on calf weight produced per cow per year, and on reproductive performance of fall calving cows. The alternative management systems tested were twin foster calf production and, delayed weaning, production of single suckled calves weaned at the end of the spring forage production season. Fall born calves which were single suckled and weaned at approximately 200 days of age served as controls. An evaluation of the effects of twin fostering on maternal-filial behavior and of the effects of cross suckling on calf growth in early life was also conducted. Delayed weaning was evaluated as a model for the demonstration of the effects of metabolizable protein intake on calf growth. Calves used in these studies were born during September and October of 1979. Control (C) calves were weaned at approximately 200 days of age, twin forster (TW) and delayed weaned (DW) single calves were weaned at approximately 291 days of age. Twin fostering resulted in calves 39 kg lighter at 200 days of age than single suckled calves (P
Download or read book An Economic Analysis of Beef Cow calf Forage Systems on Fescue ladino Clover Pastures with 0 100 200 Pounds of Nitrogen and with and Without Supplemental Feed for the Calves written by James A. Stricker and published by . This book was released on 1975 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forage Intake and Related Performance Criteria of Spring and Fall Calving Cow calf Pairs on Summer Range written by Rex John Kartchner and published by . This book was released on 1974 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three studies during three consecutive summers were conducted at the Squaw Butte Experiment Station to estimate relative and quantitative forage intake of spring and fall calving cow-calf pairs on summer range. In a drylot study (experiment 1) individual animal consumption of fescue or meadow hay cut at 2- to 10-day intervals from May 16 to August 22 was determined for 6 spring and 6 fall cow-calf pairs. Spring cows consumed more hay than did fall cows (10. 72 vs. 10.00 kg/day; P = 0.08) and produced more milk (3.73 vs. 2.13 kg /day between June 4 and July 8; P
Download or read book Evaluation of Annual and Perennial Forages for Late Fall early Winter Stockpile Grazing of Beef Cattle in Manitoba written by Brittainy Hewitt and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The intent of this study was to evaluate the yield and nutritive value of seven annual forage species, five perennial grass and three perennial legume forage species in pure stands and binary grass-legume mixtures, in an ES (early stockpile) and LS system (late stockpile), for their potential usage for stockpile grazing of beef cows. Forage samples were cut in late October 2014 and 2015 (perennial 2015 only) for DM (dry matter) and yield calculations, which were then ground and analyzed using wet chemistry to determine nutritive value. Corn and C+O (Courtenay + Oxley II) TDN (Total Digestible Nutrients) and CP (crude protein) values would meet the nutritional requirements of a dry beef cow (up to 648 kg) in the middle trimester of pregnancy. Corn and C+O on the ES system demonstrated good potential for high yield and adequate nutritive value for extending the grazing season for beef cows in Manitoba.
Download or read book Nutrient Requirements of Beef Cattle written by Subcommittee on Beef Cattle Nutrition and published by National Academies Press. This book was released on 2000-05-16 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: As members of the public becomes more concious of the food they consume and its content, higher standards are expected in the preparation of such food. The updated seventh edition of Nutrient Requirements of Beef Cattle explores the impact of cattle's biological, production, and environmental diversities, as well as variations on nutrient utilization and requirements. More enhanced than previous editions, this edition expands on the descriptions of cattle and their nutritional requirements taking management and environmental conditions into consideration. The book clearly communicates the current state of beef cattle nutrient requirements and animal variation by visually presenting related data via computer-generated models. Nutrient Requirements of Beef Cattle expounds on the effects of beef cattle body condition on the state of compensatory growth, takes an in-depth look at the variations in cattle type, and documents the important effects of the environment and stress on food intake. This volume also uses new data on the development of a fetus during pregnancy to prescribe nutrient requirements of gestating cattle more precisely. By focusing on factors such as product quality and environmental awareness, Nutrient Requirements of Beef Cattle presents standards and advisements for acceptable nutrients in a complete and conventional manner that promotes a more practical understanding and application.
Download or read book Bulletin written by and published by . This book was released on 1970 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Southern Pasture and Forage Crop Improvement Conference written by and published by . This book was released on 1985 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Model for Selecting Forage Systems for Cow calf Operations in Piedmont South Carolina written by William H. Amspacher and published by . This book was released on 1981 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Economic Comparison of Intensive Cow calf Forage Systems for South Mississippi written by and published by . This book was released on 1990 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forage Quality Evaluation and Utilization written by George C. Fahey and published by . This book was released on 1994 with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a historical foundation as well as a review of the state-of- the-art in forage science, detailing 25 years of progress in forage quality, evaluation, and utilization, along with the latest developments and new directions for future research. The volume is divided into six sections: overview of forage science; identification and quantitative measurement of forage quality components; intake as a critical element of forest quality; role of digestion and metabolism in determining forage quality; integrating concepts affecting changes in forage quality; and improving forage quality and evaluation. No index. Member price, $36. Annotation copyright by Book News, Inc., Portland, OR
Download or read book Economic Feasibility of Fall calving on Oregon High Desert Cow calf Operations written by Thomas Lee Nordblom and published by . This book was released on 1972 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: The traditional practice on beef cow-calf ranches in the high desert region of Eastern Oregon has been to breed the cows to calve in the Spring months. Interest has been growing recently in the practice of Fall-calving; that is, breeding cows to calve in the months of October and November. The Squaw Butte Experiment Station at Burns, Oregon, began a Fall-calving program with part of their range beef herd several years ago. They found that climatic conditions are generally more favorable for calving in the Fall, resulting in higher weaned-calf percentages. Calves from both Spring and Fall-calving herds were weaned in late Summer, with Fall calves averaging around 500 pounds compared with 330 pounds for the Spring calves. There was little doubt about the biological feasibility of the Fall-calving practice in that area, but its economic feasibility was somewhat in question. The purpose of this research was to analyze the economic aspects of Fall-calving and determine what are the most important factors in deciding its economic feasibility. A linear programming model was developed for comparing Fall and Spring-calving systems under different conditions. The model was designed to maximize net returns to labor, management and fixed resources in the beef enterprise. This model took account of range forage utilization patterns. Solutions from the model indicated that Spring-calving systems may have slightly higher net returns than Fall-calving because of two main differences: (1) the lighter Spring-born calves bring a higher average price per cwt., and (2) the Fall-calving herd requires about 1500 pounds more Winter hay than cows in the Spring-calving herd. An algebraic relationship was found between calf price differentials and the price of meadow hay, which would equate the net return values for Spring and Fall-calving systems. With an expected differential of $2. 95, between the average prices of calves sold from the Spring and Fall-calving herds, it was found that a price as low as $14.12 per ton of meadow hay would be needed to equate the net returns of a Fall-calving system with those of a Spring-calving system (with calf sales on September 1). Labor costs were not included in the model, but the ranch operator's labor situation may well be the most important element in his decision to go with Fall rather than Spring calving. The main difference is in the times of the year that labor is needed. The Fall-calving system needs more labor in the Fall, and the Spring-calving system needs even more in the Spring.
Download or read book Proceedings of the 39th Southern Pasture and Forage Crop Improvement Conference written by and published by . This book was released on 1983 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Warm season Annual Forages in Forage finishing Beef Cattle Systems in the Southeast written by Deidre Danielle Harmon and published by . This book was released on 2017 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: A three year trial was conducted to evaluate the performance of sorghum x sudangrass [Sorghum bicolor var. bicolor*bicolor var. sudanense (SS)], brown-midrib sorghum x sudangrass (BMR), pearl millet [Pennisetum glaucum (L.) R. Br.; (PM)], and pearl millet planted with crabgrass [Digitaria sanguinalis (L.) Scop.; (PMCG)] in a Southeastern forage-finishing beef production system. In a randomized complete block design, 16 pastures (0.81-ha) were assigned to one of four forage treatments and were subdivided for rotational grazing. British-cross beef steers (n = 32; 3 yr average: 429℗ł22 kg) grazed for 70, 63 and 56 days in 2014, 2015 and 2016, respectively. Forage DM yield was least (P 0.01) for PMCG at the initiation of the grazing trial, while BMR was greater (P 0.01) than SS at week 6. Higher stocking densities were maintained on SS than PM and PMCG (P
