Download or read book Winter Supplementation and Delayed Weaning of an Autumn Calving Beef Herd Under Western Oregon Conditions written by Heidi Renata Buehner and published by . This book was released on 1986 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two management systems were evaluated in terms of the effects on cow condition score and body weight changes and calf growth rates. The management systems evaluated were winter supplementation of energy, winter creep feeding and delayed weaning. The calves used in this study were born in September and October of 1981. The 48 cows and their calves were brought to a feedlot situation in December and allotted to four groups to allow controlled feeding of an energy or a non-energy supplement to the cows and a creep feed to the allotted calves. The cows receiving 3.64 kg rolled barley/head/day were not different in either body weight or condition score (1 to 5 condition score scale) from the cows fed a protein (non-energy) supplement which was fed at a level to provide the equivalent protein intake for all the cows. That is, there was no effect of the additional energy present in the rolled barley on the performance of the cows or their nursing calves. Creep feeding had a significant effect on calf end weight (P=.001) and calf rate of gain (P=.001). The creep fed calves were on the average 12.95 kg heavier at the end of the trial and gained an average of 9.34 kg more than the calves not creep fed. Creep feeding, though, in today's marketplace may not be a cost effective alternative for the commercial beef producer. Delayed weaning (DW) significantly increased the ADG of calves between the ages of 196 to 266 days of age (P=.001). Steers gained significantly faster than the heifers during this period (P=.001). DW calves did not have a significantly higher ADG than the control (C) calves during the postweaning period (to yearling age), but the DW ADG from 196 days of age to yearling age was still significantly greater than the C calves (P=.001). Postruminal digestion of milk during the experimental period may be the reason for the additional gains by the DW calves. Delayed weaning of fall born calves appears to be a sound management alternative under western Oregon conditions. Winter supplementation of cows and/or calves during the winter months did not realize significant changes in body weight and condition or the profitability of the sale of beef calves.
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 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 Winter Nutrition of Fall calving Cows and Calves written by Henry Ashby Turner and published by . This book was released on 1985 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forages Volume 2 written by Kenneth J. Moore and published by John Wiley & Sons. This book was released on 2020-06-03 with total page 963 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forages: The Science of Grassland Agriculture, 7th Edition, Volume II will extensively evaluate the current knowledge and information on forage agriculture. Chapters written by leading researchers and authorities in grassland agriculture are aggregated under section themes, each one representing a major topic within grassland science and agriculture. This 7th edition will include two new additional chapters covering all aspects of forage physiology in three separate chapters, instead of one in previous editions. Chapters will be updated throughout to include new information that has developed since the last edition. This new edition of the classic reference serves as a comprehensive supplement to An Introduction to Grassland Agriculture, Volume I.
Download or read book Fall Weaning Date and Winter Protein Supplementation Effects on Cow calf Productivity written by Lane Alan Ciminski and published by . This book was released on 2002 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Weekly Weather and Crop Bulletin written by and published by . This book was released on 1989 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agrindex written by and published by . This book was released on 1986 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Range Field Day Annual Report 2000 written by and published by . This book was released on 2000 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Breeder s Gazette written by and published by . This book was released on 1919 with total page 1084 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Breeders Gazette written by and published by . This book was released on 1958 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Beef 2007 08 written by and published by . This book was released on 2009 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Canadian Range Management 1978 1980 written by John F. Vallentine and published by Phoenix, Ariz. : Oryx Press. This book was released on 1981 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Western Livestock Journal written by and published by . This book was released on 1950 with total page 2002 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hoard s Dairyman written by and published by . This book was released on 1924 with total page 870 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Bibliography of Agriculture written by and published by . This book was released on 1990-05 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt:
