Häftad, Hindi, 2020
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10 produkter
10 produkter
- E-bokEngelska, 2013
4 484 kr
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Dairy Technology deals with all methods of handling milk from production and consumption and includes processing, packaging, storage, transport and physical distribution. Based on the sciences of biochemistry, bacteriology, and nutrition, Dairy Technology employs the principles of engineering. Its objectives are to prevent spoilage, improve quality, increase shelf-life, and make milk palatable and safe for human consumption. Dairy farming is a class of agricultural, or an animal husbandry, enterprise, for long-term production of milk, usually from dairy cows but also from goats, sheep and camels, which may be either processed on-site or transported to a dairy factory for processing and eventual retail sale. Most dairy farms sell the male calves born by their cows, usually for veal production, or breeding depending on quality of the bull calf, rather than raising non-milk-producing stock. Many dairy farms also grow their own feed, typically including corn, and hay. This is fed directly to the cows, or is stored as silage for use during the winter season. Centralized dairy farming as we understand it primarily developed around villages and cities, where residents were unable to have cows of their own due to a lack of grazing land. Near the town, farmers could make some extra money on the side by having additional animals and selling the milk in town. The dairy farmers would fill barrels with milk in the morning and bring it to market on a wagon. This important and comprehensive encyclopaedia covers, in depth, the most important recent advances in dairy technology. This encyclopaedia is an essential purchase for all dairy technologists worldwide, whether in academic research and teaching, or within food companies.
- E-bokEngelska, 2013
3 698 kr
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Animals and bacteria have cell surface antigens referred to as a blood type. Antigens from the human ABO blood group system are also found in apes such as chimpanzees, bonobos and gorillas. Other animal blood sometimes agglutinates (to varying levels of intensity) with human blood group reagents, but the structure of the blood group antigens in animals is not always identical to those typically found in humans. The classification of most animal blood groups therefore uses different blood typing systems to those used for classification of human blood. In many animals body odour plays an important survival function. Strong body odour can be a warning signal for predators to stay away, or it can be also a signal that the prey animal is unpalatable. For example, some animals species, who feign death to survive (like possums), in this state produce a strong body odour to deceive a predator that the prey animal has been dead for a long time and is already in the advanced stage of decomposing. The advances that have taken place in the field of physiology during the last four to five decades are spectacular. It is therefore necessary that the students either at undergraduate or postgraduate level are fully exposed to these frontiers in Animal Physiology and the present publication is an attempt in this direction. - E-bokEngelska, 2013
3 698 kr
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The vertebrates traditionally include the hagfish, which do not have proper vertebrae, though their closest living relatives, the lampreys, do have vertebrae. Hagfish do, however, possess a cranium. For this reason, the vertebrate subphylum is sometimes referred to as “Craniata” when discussing morphology. Molecular analysis since 1992 has suggested that the hagfish are most closely related to lampreys, and so also are vertebrates in a monophyletic sense. Others consider them a sister group of vertebrates in the common taxon of Craniata. Vertebrates are smart. Some of them are very smart. We mean you. Most vertebrates have very advanced nervous systems. While a goldfish might not compare to your intelligence, when you compare a goldfish to a sea anemone, a goldfish is like Einstein. Octopi are probably the smartest invertebrates and may equal or be smarter than some vertebrates. Octopi are the exception in the invertebrate category. More cool traits about vertebrates are that they have muscles and skeletons. While the materials may vary, muscles allow vertebrates to move around very efficiently and perform complex moves. That ability to move and the intelligence to go with it gives vertebrates such as reptiles and birds an advantage in the natural world. This book presents a thorough and accessible account of comparative anatomy of vertebrates and is designed to be useful and effective for the students of zoology, life sciences and other allied fields. The subject matter is as such that it facilitates the students at the graduate and postgraduate level. - E-bokEngelska, 2013
3 848 kr
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The role of milk in nature is to nourish and provide immunological protection for the mammalian young. Milk has been a food source for humans since prehistoric times; from human, goat, buffalo, sheep, yak, to the focus of this section - domesticated cow milk (genus Bos). Milk and honey are the only articles of diet whose sole function in nature is food. It is not surprising, therefore, that the nutritional value of milk is high. Milk is also a very complex food with over 100,000 different molecular species found. There are many factors that can affect milk composition such as breed variations, cow to cow variations, herd to herd variations - including management and feed considerations, seasonal variations, and geographic variations. To those with a good knowledge of chemistry and physics the various formulae and equations will prove useful, but it has been the endeavour of the author to treat the subject-matter in such a manner as to enable the salient facts to be appreciated by those with only an elementary knowledge of these two subjects. - E-bokEngelska, 2013
4 639 kr
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As an agricultural product, milk is extracted from mammals and used as food for humans. Worldwide, dairy farms produced about 730 million tonnes of milk in 2011. India is the world’s largest producer and consumer of milk, yet neither exports nor imports milk. New Zealand, the European Union’s 27 member states, Australia, and the United States are the world’s largest exporters of milk and milk products. China and Russia are the world’s largest importers of milk and milk products. The fat content of milk is of economic importance because milk is sold on the basis of fat. Milk fatty acids originate either from microbial activity in the rumen, and transported to the secretory cells via the blood and lymph, or from synthesis in the secretory cells. The main milk lipids are a class called triglycerides which are comprised of a glycerol backbone binding up to three different fatty acids. The fatty acids are composed of a hydrocarbon chain and a carboxyl group. Saturated fatty acids (no double bonds), such as myristic, palmitic, and stearic make up two thirds of milk fatty acids. To those with a good knowledge of chemistry and physics the various formulae and equations will prove useful, but it has been the endeavour of the author to treat the subject-matter in such a manner as to enable the salient facts to be appreciated by those with only an elementary knowledge of these two subjects. - E-bokEngelska, 2014
6 568 kr
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The issue of raising livestock for human benefit raises the issue of the relationship between humans and animals, in terms of the status of animals and obligations of people. So it becomes mandatory for the owners to properly look after the animals’ food as well health issues. Domestic Animals’ diseases compromise animal welfare, reduce productivity, and can infect humans. Animal diseases may be tolerated, reduced through animal husbandry, or reduced through antibiotics and vaccines. In developing countries, animal diseases are tolerated in animal husbandry, resulting in considerably reduced productivity, especially given the low health-status of many developing country herds. Disease management for gains in productivity is often the first step taken in implementing an agriculture policy. It is hoped that the information provided in this book will be useful to the students and can be easily understood and remembered in diagnosing infectious diseases. - E-bokPDF, Engelska, 2014
6 822 kr
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The term biotechnology is made from two words: bio and technology. The bio in biotechnology means "life" and refers to microbes and other living cells including animal and plant cells. The technology comprises the growth of living cells in vats (fermentors or bioreactors) containing nutrients and oxygen (if needed) at the specified conditions, and processing of biological materials produced by the cells through process integration and optimization at top efficiency for achieving commercialization. While there have been many practical applications for bio technology and humans, there has also been extensive research in bio technology and animals. Veterinary Biochemistry and Biotechnology is prepared keeping in view the immature minds of the students who just entered a professional course. No doubt that there are a number of books, available in the market embedding very many details of each and every aspect of Biochemistry, but this books gives only the basic information in the form of short notes in a very simple language. Understanding a glossary of terminnologies in English itself becomes a great task for the students. - E-bokEngelska, 2013
6 752 kr
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Dairy farming has been part of agriculture for thousands of years. Historically it has been one part of small, diverse farms. In the last century or so larger farms doing only dairy production have emerged. Large scale dairy farming is only viable where either a large amount of milk is required for production of more durable dairy products such as cheese, butter, etc. or there is a substantial market of people with cash to buy milk, but no cows of their own. Dairying is an important source of subsidiary income to small/marginal farmers and agricultural labourers. The manure from animals provides a good source of organic matter for improving soil fertility and crop yields. The gober gas from the dung is used as fuel for domestic purposes as also for running engines for drawing water from well. The present book will be immense importance to geographers, research scholars, policy makers, animal husbandry departments and government agencies. - E-bokEngelska, 2013
6 752 kr
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The origins of the scientific study of animal behaviour lie in the works of various European thinkers of the 17th to 19th centuries, such as British naturalists John Ray and Charles Darwin and French naturalist Charles LeRoy. These individuals appreciated the complexity and apparent purposefulness of the actions of animals, and they knew that understanding behaviour demands long-term observations of animals in their natural settings. At first, the principal attraction of natural history studies was to confirm the ingenuity of God. Comparative psychology also studies animal behaviour, but, as opposed to ethology, is construed as a sub-topic of psychology rather than as one of biology. Historically, where comparative psychology researches animal behaviour in the context of what is known about human psychology, ethology researches animal behaviour in the context of what is known about animal anatomy, physiology, neurobiology, and phylogenetic history. The author expresses the hope that this way of treatment may serve its purpose and form an introduction to the fascinating science of the psychology of animals.
