More Milking Days with Lower Yields PDF Download

Author:
Publisher:
ISBN: 9789463438346
Category :
Languages : en
Pages : 184

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Author: Thompson Elwyn Woodward
Publisher: Forgotten Books
ISBN: 9781396116322
Category : Business & Economics
Languages : en
Pages : 22

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Excerpt from The Production of Dairy Cows as Affected by Frequency and Regularity of Milking and Feeding Cows milked twice a day and three times a day for long periods, 217 to 365 days, gave nearly 20 per cent more milk and nearly 21 per cent more butterfat when milked three times a day. The decline in milk yield in the long periods was much greater when the cows were milked twice a day than when they were milked three times a day. The production Of milk by a cow milked once a day declined times as fast as when she was milked twice a day. Cows milked four times and three times a day, in alternate periods of 30 days, following 10 day transitional periods, gave 7 per cent more milk and 6 per cent more butterfat when milked four times a day. The explanation Offered for the greater yield following the more frequent milking is that relief from the pressure of milk within the udder allows secretion to proceed more freely. Changing milkers resulted in an almost negligible decrease in milk production. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Author: Céline Bosquillon de Jenlis
Publisher:
ISBN:
Category :
Languages : en
Pages : 34

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In New Zealand, cows are usually milked Twice A Day (TAD). But Once A Day milking (OAD) has become more and more practised recently. Research has been done in order to improve the knowledge of this system and to select the dairy cattle that is the most suitable to OAD milking. A 2004-2005 trial that involved 144 friesan cows was carried out at Dexcel. These animals were milked OAD or TAD from calving, but the TAD herd switched to OAD in January. Furthermore, they were allocated to a high or low milksolids (fat + protein) content groups based on the cows' results from the previous year or the heifers' genetic potential. Because Jersey cows, with concentrated milk, perform better on OAD milking than Friesians with less concentrated milk, i twas thought that the same results might occur within the Friesian breed. Analyses of Variance were used to compare the performances of the groups. In this trial, high milksolids content cows didn't seem to be better suited to OAD milking. No major significant differences concerning milk and milksolids yields were found between the high and low milksolids content animals. Some differences for the milk of cows milked once or twice a day were shown : OAD cows produce lower milk and milsolids yields and their milk contains more somatic cells. The change from TAD to OAD milking was followed by a decline in milk and milksolids yields, which quickly dropped to the OAD herd level. Unfortunately, there was no carry over from the TAD level. The udder capacity of each animal was measured three times throughout the lactation. It tended to be larger in November and January for cows milked TAD and for low milksolids content cows. Curves were fitted to the milk production of each cow. Although it is difficult to determine accurately the day of the peak milk yield, it is easier to find out peak milk yield. It appeared that TAD cows produce more mil kat peak than OAD. Low milksolids content cows with less concentrated milk have a higher peak yield than high milksolids content cows.

Author: M. G. Diskin
Publisher:
ISBN:
Category : Dairy cattle
Languages : en
Pages : 296

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Author: National Research Council
Publisher: National Academies Press
ISBN: 0309031818
Category : Science
Languages : en
Pages : 169

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Author: National Research Council
Publisher: National Academies Press
ISBN: 0309037956
Category : Medical
Languages : en
Pages : 384

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This lively book examines recent trends in animal product consumption and diet; reviews industry efforts, policies, and programs aimed at improving the nutritional attributes of animal products; and offers suggestions for further research. In addition, the volume reviews dietary and health recommendations from major health organizations and notes specific target levels for nutrients.

Author: Ronald Ross Watson
Publisher: Academic Press
ISBN: 0128097639
Category : Health & Fitness
Languages : en
Pages : 492

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Nutrients in Dairy and Their Implications for Health and Disease addresses various dairy products and their impact on health. This comprehensive book is divided into three sections and presents a balanced overview of the health benefits of milk and milk products. Summaries capture the most salient points of each chapter, and the importance of milk and its products as functional foods is addressed throughout. - Presents various dairy products and their impact on health - Provides information on dairy milk as an important source of micro-and macronutrients that impact body functions - Addresses dietary supplements and their incorporation into dairy products

Author: Harald Volden
Publisher: Springer Science & Business Media
ISBN: 9086867189
Category : Science
Languages : en
Pages : 172

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NorFor is a semi-mechanistic feed evaluation system for cattle, which is used by advisors in Denmark, Iceland, Norway and Sweden. This book describes in detail the system and it covers five main sections. The first is concerned with information on feed characteristics, feed analysis and feed digestion methods. The second section describes the digestion and metabolism in the gastrointestinal tract and the supply and requirement of energy and metabolizable amino acids. The third section considers the prediction of feed intake and physical structure of the diet. The fourth section focuses on model evaluation and the final section provides information on the IT solutions and feed ration formulation by a non-linear economical optimization procedure. This book will be of significant interest to researchers, students and advisors of cattle nutrition and feed evaluation.

Author: Jennifer Anne Voelker Linton
Publisher:
ISBN:
Category : Beets
Languages : en
Pages : 308

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Author: W. Haresign
Publisher: Elsevier
ISBN: 148310026X
Category : Technology & Engineering
Languages : en
Pages : 200

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Recent Advances in Animal Nutrition-1981 is a collection of papers that discusses the effects of dietary fat on milk composition, relating it to the biochemistry of fat synthesis in the mammary gland. The influence of concentrates on milk composition as well as the pattern and level of concentrate feeding on milk output are also covered. The book describes the need for better utilization of grass and grass products in dairy production, the mineral and trace element requirements of pigs; the importance of anion-cation balance in poultry diets and its effects on performance levels; and the selenium and cobalt requirements of ruminants. The problems of medicinal residues in animal products and the toxicological effects of aflatoxin residues in animal products are also considered. People involved in agriculture, dairy production and animal nutrition will find the book useful.