Some Factors Associated with the Rate of Milk Flow in Dairy Cattle PDF Download

Author: Eugene Wesley Hupp
Publisher:
ISBN:
Category : Milking
Languages : en
Pages : 340

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

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Book Description
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: Carter Smith Elliott
Publisher:
ISBN:
Category : Dairy cattle
Languages : en
Pages : 194

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Author: Krishan Chandra
Publisher:
ISBN:
Category :
Languages : en
Pages : 71

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Author: Vaughn Stewart Logan
Publisher:
ISBN:
Category :
Languages : en
Pages : 39

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Author: Monica Reynolds
Publisher: University of Pennsylvania Press
ISBN: 1512806056
Category : Medical
Languages : en
Pages : 284

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Book Description
Proceedings of a symposium, satellite to the 24th International Congress of Physiological Sciences, University of Pennsylvania.

Author: Claudia Kamphuis
Publisher: BRILL
ISBN: 9086868290
Category : Technology & Engineering
Languages : en
Pages : 459

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Book Description
The supply of new innovative precision dairy farming technologies is steadily increasing. It aims to help farmers to be more labour efficient and to support them in their daily management decisions. At the same time, since many technologies are developed from an engineering perspective, adoption of these technologies is sometimes limited since knowledge on economic benefits and farmers' needs is often incomplete. This book covers the current status of precision dairy farming technologies and what farmers expect from them. It also includes insights and future perspectives on managing, analysing, and combining sensor information. Moreover, new innovative ideas that may better fit farmers' needs and expectation are introduced, ranging from technologies or innovations that aim at improved animal health and welfare, to those technologies that result in a more efficient use of feed and improved grazing management. This book is unique because science and engineering are combined to develop precision dairy farming technologies that are to be applied in practice. The book will serve as a stepping stone for new and innovative ideas within this rapidly growing area within dairy farming.

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

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Author: D. Sauvant
Publisher: Springer Science & Business Media
ISBN: 908686712X
Category : Science
Languages : en
Pages : 418

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For more than 30 years, modelling has been an important method for integrating, in a flexible, comprehensive and widely applicable way, basic knowledge and biological concepts on digestion and metabolism in farm animals. The purpose of this book is to present the 'state of art' in this area. The chapters are written by leading teams and researchers in this field of study, mainly from Europe, North America and Australasia. Considerable progress has been made in topics dealing with: modelling methods, feeding behaviour, digestion and metabolic processes in ruminants and monogastric animals. This progress is clearly illustrated by the emergence of a new paradigm in animal nutrition, which has moved from the aim to cover the requirements of the animal to explaining and predicting the responses of the animals to diets (e.g., productivity and efficiency, impact on quality of products, environmental aspects, health and well-being). In this book several chapters illustrate that through empirical models, meta-analysis is an efficient tool to synthesize information gathered over recent decades. In addition, compared with other books on modelling farm animal nutrition, two new aspects received particular attention: expanding knowledge of the individual animal to understanding the functioning and management of herds, and the consideration of the environmental impact of animal production. This book is a valuable source of information for researchers, nutritionists, advisors, and graduate students who want to have up-to-date and concise information on mathematical modelling applied to farm animals.

Author: F. Harding
Publisher: Aspen Publishers
ISBN:
Category : Business & Economics
Languages : en
Pages : 192

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Book Description
1 World milk production.- 2 Milk production: Factors affecting milk composition.- 2.1 Introductio.- 2.2 Synthetic and secretory tissues of the mamary gland.- 2.2.1 Functional anatomy.- 2.2.2 Role of the milk-producing cell.- 2.2.3 Milk flow within the udder.- 2.3 The initiation and establishment of lactation.- 2.4 The milk ejection reflex.- 2.5 Effect of breed on milk composition and yield.- 2.6 Role of genetics in milk production.- 2.7 Effect of environment on milk composition and yield.- 2.7.1 Effects of season.- 2.7.2 Effects of thermal stress.- 2.8 Dairy cattle nutrition and its influence on milk yield and composition.- 2.8.1 Dietary effects on milk fat.- 2.8.2 Influence of ration on milk protein.- 2.9 The effects of milking management practices on milk quality.- 2.9.1 Milking interval.- 2.9.2 Milking rate.- 2.9.3 Frequency of milking.- 2.9.4 Milking routine.- 2.9.5 Cow preparation and residual milk.- 2.10 Influence of age and stage of lactation on milk component yield 22 References and further reading.- 3 Mastitis and milk quality.- 3.1 Introduction.- 3.2 Causative organisms.- 3.3 Contagious and environmental pathogens.- 3.4 Inflammation.- 3.5 Compositional changes.- 3.6 Milk losses.- 3.7 Impact on dairy products.- 3.8 Control of mastitis.- 3.9 Measurement.- 3.10 Summary 37 Further reading.- 4 Hygienic quality.- 4.1 Milk production, plant cleaning, on-farm storage and collection of milk.- 4.1.1 Milk production.- 4.1.2 Plant cleaning and sterilisation.- 4.1.3 Effect of storage time and temperature on bacterial count.- 4.2 Types of bacteria.- 4.3 Cooling and storage of milk on the farm.- 4.4 Collection, delivery and reception of milk.- 4.4.1 Churn collection.- 4.4.2 Bulk collection.- 4.5 Delivery and storage prior to processing 47 4.5.1 Storage of milk prior to processing.- 4.6 Importance of hygienic quality of milk.- 4.7 Measurement of the hygienic quality of milk.- 4.7.1 Simple, rapid tests for mesophiles.- 4.7.2 Tests for cooled milk.- 4.7.3 Staining and counting bacteria.- 4.7.4 Measurement of metabolic products of microbial cells.- 4.7.5 Measurement of metabolic activity.- 4.8 The future.- 4.9 Sampling, storage, preservation and transportation of samples 55 4.9.1 Sample transport and preservation.- References and further reading.- 5 Adulteration of milk.- 5.1 Introduction.- 5.2 Extraneous water.- 5.2.1 Vieth ratio.- 5.2.2 Nitrates as an indication of extraneous water.- 5.3 Freezing point test for detecting adulteration.- 5.3.1 Basis of the test.- 5.3.2 Freezing point depression and how it is controlled.- 5.3.3 Measurement units.- 5.3.4 How constant is the freezing point of milk?.- 5.3.5 Freezing point of goat's, buffalo'sand ewe's milk.- 5.3.6 Factors affecting freezing point of milk.- 5.3.7 Test method.- 5.3.8 Calculation of amount of extraneous water in milk.- 5.4 Sources of contamination by extraneous water.- 5.5 How to avoid getting water into milk at the farm.- 5.6 Control of extraneous water through payment schemes.- 5.7 Other sources of adulteration.- 5.7.1 Salt.- 5.7.2 Sugar.- 5.7.3 Skim-milk powder.- 5.7.4 Detergent sterilants.- 5.7.5 Preservatives.- 5.7.6 Colostrum.- 5.7.7 Blood.- 5.7.8 Taints.- References and further reading.- 6 Compositional quality.- 6.1 Composition of milk.- 6.2 Measurement of total solids in milk.- 6.3 Measurement of the solids-not-fat (SNF) of milk.- 6.4 Major constituents.- 6.4.1 Fat.- 6.4.2 Proteins.- 6.4.3 Lactose.- 6.5 The use of instruments in assessing compositional quality.- 6.5.1 Assessing compositional quality using infrared.- 6.6 Dairy herd improvement (DHI) and quality payment laboratories.- 6.7 Quality payment systems for milk.- 6.7.1 Compositional quality.- References and further reading.- 7 Milk from sheep and goats.- 7.1 Introduction.- 7.2 Milking practices.- 7.3 Compositional quality.- 7.4 Measuring cow's milk in sheep's or goat's milk products.- 7.4.1 Differences in lipids.- 7.4.2 Differences in protein.- 7.4.3 Immunological techniques.- 7.4.4 General differences.- 7...