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Impact Of Milk Production Level On Beef Cow Calf Productivity In Tennessee
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Book Synopsis Impact of Milk Production Level on Beef Cow-calf Productivity in Tennessee by : Sarah Rebecca Edwards
Download or read book Impact of Milk Production Level on Beef Cow-calf Productivity in Tennessee written by Sarah Rebecca Edwards and published by . This book was released on 2015 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: The beef cattle industry tends to focus on selecting production traits with the purpose of maximizing cow-calf performance. One such trait is milking ability, which is considered the primary influence on weaning weight of the calf. But, it can also have a negative effect on cow reproductive efficiency and cost of production. Therefore, the objective of this study was to determine the effect of actual milk yield on reproductive performance, circulating blood metabolites, and calf performance in beef cows in Tennessee. Data were collected from 239, 3- to 9-yr-old Angus sired beef cows from 3 research centers across Tennessee. On approximately d 58 and 129 postpartum, 24-hr milk production was measured with a modified weigh-suckle-weigh technique using a milking machine. Subsamples of milk were collected for analysis of milk components. Milk yield data were used to classify cows on actual milk yield as High (≥ 10 kg/d), Moderate (8-9 kg/d), or Low (
Book Synopsis Impact of Increasing Level of Milk Production on Cow and Calf Behavior and Performance in the Nebraska Sandhills by : Selby L. Boerman
Download or read book Impact of Increasing Level of Milk Production on Cow and Calf Behavior and Performance in the Nebraska Sandhills written by Selby L. Boerman and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Selection for increased milk production across the United States has resulted in variable cow and calf production responses. Better understanding of calf nursing and grazing behaviors may provide opportunities to help estimate how milk and grazed forage intake influence variability in calf performance. In a 2-yr study, cow-calf pairs (n = 65) were equipped with neck collars containing global positioning system (GPS) units to validate the efficacy of high-frequency GPS data to accurately identify calf nursing events and grazing behavior. Data were collected during 3-wk tracking periods during early lactation (calf age 65.4 ± 10.0 d; EARLY) and late lactation (calf age 162 ± 22.3 d; LATE). Calf behavior was visually observed for a total of 350 hrs and was used in a training dataset for a random forest (RF) classification model. Out of bag (OOB) estimates of individual behaviors indicated relatively low misclassification error rates, less than 4%, suggesting that high frequency GPS tracking can be used to effectively classify calf nursing and grazing behaviors. Behavior prediction results in this study match ranges reported in previous literature, supporting the efficacy of this technique to assess behavior in beef calves. In a 2-yr study, crossbred cow-calf pairs (n = 118) from March- and May-calving herds were used to determine the impact of increasing total milk production on cow body weight (BW), body condition score (BCS), reproductive performance, calf BW, and calf average daily gain (ADG). On approximately 30, 60, 90, 120, and 210 d postpartum, individual cow 24-h milk yield was estimated with weigh-suckle-weigh techniques. Milk area under the curve (AUC) values were calculated and data were analyzed using linear regression analysis. Cow BW, BW change, and reproductive performance were not (P > 0.12) associated with milk AUC, except for a tendency (P = 0.09) for lower BW at breeding. At weaning, cow BCS was negatively associated (P = 0.09) with increasing milk AUC but was not associated at any other physiological stage. A significant positive association with calf average daily gain (ADG) was observed from birth to age 120 d and a tendency (P = 0.09) for a positive association was observed from age 120 d to weaning. Steer ADG in the finishing phase was not (P = 0.63) associated with dam milk production. In this environment, increasing milk production had a positive increase in calf growth during the pre-weaning phase without any negative impacts on overall cow-calf production.
Book Synopsis An Economic Analysis of the Beef Cattle Enterprise in Tennessee Using Multiple Regression on Secondary Time Series Data by : Charles Ray Kerley
Download or read book An Economic Analysis of the Beef Cattle Enterprise in Tennessee Using Multiple Regression on Secondary Time Series Data written by Charles Ray Kerley and published by . This book was released on 1970 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Level of Milk Production in Crossbred Beef Cows and Its Effect on Calf Gain by : Archie C. Clutter
Download or read book Level of Milk Production in Crossbred Beef Cows and Its Effect on Calf Gain written by Archie C. Clutter and published by . This book was released on 1984 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effects of Initial Winter Condition and Level of Winter Feeding on Beef Cow and Calf Performance by : James Burkett Neel
Download or read book The Effects of Initial Winter Condition and Level of Winter Feeding on Beef Cow and Calf Performance written by James Burkett Neel and published by . This book was released on 1966 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Food and Agriculture Organization of the United Nations Publisher :Food & Agriculture Org. ISBN 13 :925107920X Total Pages :139 pages Book Rating :4.2/5 (51 download)
Book Synopsis Tackling Climate Change Through Livestock by : Food and Agriculture Organization of the United Nations
Download or read book Tackling Climate Change Through Livestock written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2013 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: Greenhouse gas emissions by the livestock sector could be cut by as much as 30 percent through the wider use of existing best practices and technologies. FAO conducted a detailed analysis of GHG emissions at multiple stages of various livestock supply chains, including the production and transport of animal feed, on-farm energy use, emissions from animal digestion and manure decay, as well as the post-slaughter transport, refrigeration and packaging of animal products. This report represents the most comprehensive estimate made to-date of livestocks contribution to global warming as well as the sectors potential to help tackle the problem. This publication is aimed at professionals in food and agriculture as well as policy makers.
Book Synopsis Modern Dairying by : Victoria Dept of Agriculture
Download or read book Modern Dairying written by Victoria Dept of Agriculture and published by Legare Street Press. This book was released on 2023-07-18 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a comprehensive guide to modern dairy farming and management. It covers the principles of genetics, nutrition, herd health, milk production, processing, and marketing. It also includes case studies of successful dairy farmers and practical tips for improving productivity and profitability. This book is an essential resource for dairy farmers, veterinarians, and anyone interested in the dairy industry. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Agrindex written by and published by . This book was released on 1994 with total page 992 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dairy 2007: Reference of dairy cattle health and management practices in the United States, 2007 by :
Download or read book Dairy 2007: Reference of dairy cattle health and management practices in the United States, 2007 written by and published by . This book was released on 2007 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Tall Fescue for the Twenty-first Century by : Henry A. Fribourg
Download or read book Tall Fescue for the Twenty-first Century written by Henry A. Fribourg and published by ASA-CSSA-SSSA. This book was released on 2009 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Book and Multimedia Publishing Committee; David Baltensperger, chair ... [et al.]."
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:
Book Synopsis Smallholder Dairying in the Tropics by : Lindsay Falvey
Download or read book Smallholder Dairying in the Tropics written by Lindsay Falvey and published by ILRI (aka ILCA and ILRAD). This book was released on 1999-01-01 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Environment on Nutrient Requirements of Domestic Animals by : National Research Council
Download or read book Effect of Environment on Nutrient Requirements of Domestic Animals written by National Research Council and published by National Academies Press. This book was released on 1981-02-01 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Agricultural Research Service. Animal Disease and Parasite Research Division Publisher : ISBN 13 : Total Pages :8 pages Book Rating :4.F/5 ( download)
Book Synopsis Liver Flukes in Cattle by : United States. Agricultural Research Service. Animal Disease and Parasite Research Division
Download or read book Liver Flukes in Cattle written by United States. Agricultural Research Service. Animal Disease and Parasite Research Division and published by . This book was released on 1968 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :University of Tennessee (Knoxville campus). Agricultural Experiment Station Publisher : ISBN 13 : Total Pages :52 pages Book Rating :4.:/5 (31 download)
Book Synopsis Annual Report of the Tennessee Agricultural Experiment Station by : University of Tennessee (Knoxville campus). Agricultural Experiment Station
Download or read book Annual Report of the Tennessee Agricultural Experiment Station written by University of Tennessee (Knoxville campus). Agricultural Experiment Station and published by . This book was released on 1990 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Lactation and the Mammary Gland by : R. Michael Akers
Download or read book Lactation and the Mammary Gland written by R. Michael Akers and published by John Wiley & Sons. This book was released on 2016-02-10 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: Michael Akers provides the basics for understanding mammary development and lactation and conveys the critical regulatory events in lactation. This text willl prove to be an invaluable overview of mamorary development and lactation for undergraduates and graduates studying lactation, new researchers, and as a review for established scientists. Additionally, the book will be an important resource for professionals in the animal and dairy industry and for those in other scientific disciplines such as food chemistry, cell biology, and endocrinology whose work is closely tied to mammary gland development and function. Lactation and the Mammary Gland covers growth and development of the mammary gland including comparisons between species. It imparts and emphasizes the critical nature of mammary growth and the onset of lactation at the time of parturition. Special emphasis is given to the endocrine and growth factor regulation of both mammogenesis and lactogenesis. A thorough discussion of the role of growth hormone in development and maintenance of lactation or galactopoiesis adds to this book's value as a text and reference. The author reviews the presence of hormones, growth factors, and other bioactive compounds in milk and mammary secretions as well as the potential for use of the mammary gland as a bioreactor in the pharmaceutical industry. A description of the nutritional and management factors in milk production round out the book's comprehensive coverage.
Book Synopsis Mitigation of Greenhouse Gas Emissions in Livestock Production by : Pierre J. Gerber
Download or read book Mitigation of Greenhouse Gas Emissions in Livestock Production written by Pierre J. Gerber and published by Food & Agriculture Organization of the UN (FAO). This book was released on 2013 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current analysis was conducted to evaluate the potential of nutritional, manure and animal husbandry practices for mitigating methane (CH4) and nitrous oxide (N2O) - i.e. non-carbon dioxide (CO2) - GHG emissions from livestock production. These practices were categorized into enteric CH4, manure management and animal husbandry mitigation practices. Emphasis was placed on enteric CH4 mitigation practices for ruminant animals (only in vivo studies were considered) and manure mitigation practices for both ruminant and monogastric species. Over 900 references were reviewed; simulation and life cycle assessment analyses were generally excluded
