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Ultrasonography is being routinely practiced in canine and feline medicine for the diagnosis of diseases of the organs and also to confirm pregnancy. Its routine use in ruminant medicine is mainly restricted to pregnancy diagnosis. Recently the potential of ultrasonography is also being explored in zoo and wild animals as well as in exotic pets. Information available in companion and other domestic animals cannot be applied blindly to zoo and wild animals.

During last two decades significant advances have been made in diagnostic ultrasound .These advances have positively impacted on diagnostic imaging across all species of animals and have made ultrasound as an indispensable diagnostic modality in veterinary medicine. Since equines have been more a sport and pack animals, the ultrasound technique has long been utilized in the diagnosis of equine musculo-skeletal disorders. Recent years have witnessed its utility in the management of equine reproduction beside its use in the diagnosis of colic and other diseases.

For the sake of convenience ruminants are broadly divided into two categories as large ruminants and small ruminants. Large ruminants consist of cattle and buffaloes and small ruminants consist of goats and sheep. Sonography is becoming an important part of diagnostic modalities in ruminants also. Its major use in ruminants is in reproduction and lameness.

Architecture of the organ is affected in the primary or secondary diseases of the organs. Ultrasonography plays a significant role in detecting the changes in the organs in various diseases.

Focused assessment with sonography for trauma (abdominal and thoracic) refers to the limited ultrasound examination with the main focus on quick identification of the presence of free fluid within peritoneal, pleural and pericardial spaces in trauma cases in intensive care units. Despite limitations, findings of FAST are helpful in stabilizing the emergency patients.

Abdominal organs in different species of animals have distinctive features with respect to their shape, size, location and echogenicity and echo texture. This is true for dogs and cats also. Therefore, information with respect to sonographic features of dogs cannot be taken for granted for cats in totality

Beside heart, ultrasound of the thorax facilitates the imaging of lungs, pleura, mediastinum, chest wall and diaphragm. Sonographic examination of the heart is discussed in chapter16. Because of nearly total reflection of sound waves at gas interfaces (Fig. 176) thoracic ultrasound has limitations. Pulmonary and mediastinal lesions located deep are difficult to image. Peripheral pulmonary lesions and pleural fluid can be visualized.

Cardiac ultrasound is also known as echocardiography and it has a very important place in the diagnosis of cardiac diseases of the humans as well as animals. Echocardiography is an imaging of the heart using ultrasound. The diagnosis of congenital heart diseases, shunts, complex malformations, valvular heart diseases, different cardiomyopathies, endocarditis, pericardial effusion, cor pulmonale and cardiac tumours has been possible by cardiac ultra ultrasound that was otherwise difficult.

Imaging of muscles, tendons, joints and bones is not common practice in canine and feline medicine. However, scanning of tendons and ligaments is extensively done in race horses to see their fitness. Adhesions, ruptures/ tears and inflammation of tendons and ligaments can be detected by sonographic imaging of these structures. These structures are relatively superficial so a high frequency linear or curvilinear transducer (7.5 to 13.0 MHz) is used to scan these structures. For scanning of joints acoustic window is relatively small so micro convex or sector probes are more appropriate.

Sonography of the nervous system in dogs dates back to 1972 when it was employed in experimental studies. Thick bony cage of the brain limits the sonographic evaluation of the brain. It has an important place in human paediatric medicine. Sonography of the brain and the nervous system is not very common in veterinary medicine.

Ophthalmic or ocular ultrasound can provide important diagnostic information that is readily not available with other diagnostic techniques. Ocular ultrasound is emerging as an important diagnostic modality in veterinary ophthalmology.

Ultrasound has been used to image thyroid and parathyroid glands. It can assist in the diagnosis of hyperthyroidism and hyperparathyroidism in dogs and cats. Recently it has also been used to differentiate cases of primary hypothyroidism or euthyroid syndrome.

Application of ultrasonography has become a routine practice in canine and feline medicine to detect pregnancy, to ascertain foetal wellbeing, to ascertain live/dead status of the foetus, ovarian dynamics, and to diagnose reproductive ailments (uterine, ovarian,) in females. Sonography is also being preferred in males for the diagnosis of diseases of prostate gland, cryptorchid, and testicular diseases.

The urinary tract is the body’s drainage system. It includes kidneys, ureters, urinary bladder and urethra. Ultrasound is a most preferred imaging tool for the diagnosis of diseases of urinary tract not only in humans but also in dogs and cats. Little adipose tissue in urinary system of dogs makes the contrast between different planes and anatomical structures poor.

The pancreas is a thin and elongated ‘V’ shaped organ having two lobes (right and left) and body. It lies in the right cranial quadrant of the abdomen. It is difficult to visualize normal pancreas sonographically because of its echogenicity similar to that of adjacent mesentery and fat.

Ultrasound and survey radiography are two important diagnostic modalities regularly employed in the diagnosis of intestinal diseases. Both modalities are complementary to each other in investigating the problems related to intestines. It is always better to have plain survey radiograph of abdomen first and then ultrasound to rule out obstruction or radio-opaque foreign bodies. Wherever barium meal radiograph is indicated, it should be done after sonographic examination as barium may degrade image quality of the sonogram. Assessment of intestinal motility can be done in real time sonography.

Ultrasonographic examination of gastrointestinal tract is not very much rewarding in dogs because of gas in the tract but it is crucial for a correct diagnosis. Imaging of stomach plays a significant role in the diagnosis of gastric diseases such as gastric dilatation, gastric foreign bodies, pyloric outflow obstruction, or gastric tumours.

Spleen is an elongated solid organ located on the left side along cranial and ventral abdominal wall. The size of spleen is variable in dogs. The spleen is larger in German Shepherds and Greyhounds. In cats the spleen is smaller and has fixed size. It is parallel to greater curvature of stomach within greater omentum. The position of spleen in dogs is variable as it is only attached by gastrosplenic ligament.

Liver is situated in cranial abdomen. Scanning of abdomen is started with the examination of liver. Hepatic ultrasonography is a non-invasive diagnostic modality to evaluate liver parenchyma. Differentiation of focal disease from diffuse disease, cystic lesions from solid masses, and obstructive jaundice from non-obstructive jaundice is possible by hepatic ultrasonography.

Ultrasound is an excellent diagnostic modality for detecting visceral abnormalities. Detection of masses, nodules or effusions through sonography provides non-specific diagnosis. For specific/definite diagnosis tissue samples are necessary for histopathological examination. The techniques of ultrasound guided fine needle aspiration and core biopsy are of great help in establishing etiological diagnosis.

Doppler ultrasound is a non-invasive diagnostic tool being employed in evaluating blood flow in major vessels, veins and arteries. Information regarding perfusion in an organ or an area can also be obtained through Doppler ultrasonography. Doppler ultrasound is an important part of echocardiographic examination in dogs and cats. Its more recent application is in the investigation of the tissue wall motion while evaluating the heart. B-mode ultrasound is used to examine cardiac structures.

Ultrasonography or sonography is a diagnostic medical procedure that uses echoes of ultrasound pulses to produce images, of the objects or of the areas of different densities in the body, on the screen. This diagnostic procedure is performed through ultrasound machine. Sonogram is a visual image produced from ultrasonography.

During recent years ultrasonography has become an indispensable diagnostic modality in human and veterinary medicine because of its non-invasive nature, providing visualization of internal organs, and quick results. Birth of ultrasound took place in 1794 when an Italian biologist Lazzaro Spallanzani discovered that bats used sound waves for navigation. Since then continuous developments and advancements in the technology have made the sonography a dependable and an easily accessible diagnostic modality.

With the invention of bitcoin in 2008, the world was exposed to a new technology paradigm called blockchain. Blockchain was conceptualized by an unknown person named as Satoshi Nakamoto in 2008. The identity of Satoshi Nakamoto is still not known. Nakamoto proposed the design of blockchain which uses digital signature and timestamps to enable secure and trusted online transaction without the need of any trusted regulatory or third party.

Big Data refers to extremely large, very fast, highly diverse, and complex data that cannot be managed with conventional data management systems, tools or processes. In the perfect world, Big Data may include all kind of data, which can deliver the right information, to right person, in the right quantity, at the right time, to help in making the right decisions.

The term ‘geo’ is a Greek word, it means the earth, and the term ‘spatial’ means parameter/feature measured, mapped or modeled with reference to distance or space. The geospatial technology refers to the technology that measure, model, analyze, map, or predict the features or phenomena that occur on earth and its surface.

The term robot is czech word, first time used by play write Karel Capek, in year 1920, applicable to the forced labour or serfs or slaves. The first commercial, digital and programmable robot, named ‘Unimate’ was built by George Devol in 1954.

One of the major goals in agricultural crop management is to achieve maximum yield with minimum investment while maintaining a good quality of the crop produce. Crop infestation due to insects, diseases, and weeds are some of the major factors responsible for loss in crop yield. Further, an efficient Precision Agriculture Crop Management System is one, which is capable of precisely detecting the crop yield indicators (or crop health parameters) at an early stage and can predict the yield at any point of time of the crop cycle.

Sending a message from one place to another place, which are physically separated from each other, is called Communication. The Communication Engineering or Communication Technology deals with the design and development of engineering systems to transmit information from its source, and at the same time, to receive the same information at a remote destination with reliability, accuracy and quality.

The human civilization and environmental eco-system are the two most important components of real world. The technology intervention to safeguard human civilization and the environment has always been the foremost priority of scientific and engineering community through their innovative expeditions.

Internet of Things (IoT) is networking of physical objects, devices, machines, systems etc to interconnect each other for exchanging data through standard internet protocols. The IoT is also termed as Machine-to-Machine (M-to-M) communication. The term ‘Things’ in IoT includes objects embedded with sensors, actuators, mobile phones, routers, hubs, computers, wearable’s and smart devices etc.

Artificial Intelligence (AI) is technology which can store, retrieve, manipulate, manufacture, transmit or receive, analyze any digital information and can apply machine vision for increasing efficiency and workability of the system. The AI permits systematically scope of ‘3S’ i.e. Safety, Security and Surveillance, which is also known as manmade intelligence. In fact, it needs more reliable and accurate data or information for processing and correction for predicting performance of any system and devices.

Sensor is a physical device used to detect manifestations or variations in a process value and collect data in real time assessment mode for measuring and predicting system/device performance and finally analyzing it to attain a specific task or application. Sensor technology is now-a-days used for interdisciplinary applications for data collection, system analysis and monitoring.

The term digital is derived from the word digit or digitus, a Latin word for finger, as fingers are often used for discrete counting. A variable is discrete when it is countable in a finite time and its instantaneous value at any timing/ instant belongs to a set of finite values.

A disaster is any event natural or manmade which creates an intense negative impact on people goods and services and or the environment and exceeds the affected community internal capability to respond prompting the need to seek outside assistance. In other words a disaster is a serious disturbance of a community or society interfere human resources losses and impacts on economically and environmentally or disaster means simply an event has unfortunate consequences on only on human but also on whole environment. Disaster can be two types’ Natural disaster and manmade disaster.

Environmental Ethics is a conceptual term which consist various aspects of environmental fundaments, Enviromental ethics is responsible to protect and sustain the resources and ecological system.

For the protection of all the factors of environment, laws were formed and amended from time to time as per the requirement. There are many acts according to the main factors and separate laws, for the enforcement. Also, the are some control acts, which can be implemented by states for the local environmental problems.

Sustainable Development A social cause is a problem that influences a considerable number of individuals within a society. There are many environmental issues the India like pollution, waste management sustainable development, rain water harvesting etc.

Solid wastes are all the wastes arising from human and animal activities, that are normally solid and that are discarded as useless or unwanted materials. It consists of the highly heterogeneous mass of discarded materials from the urban community as well as the more homogenous accumulation of agricultural, industrial and mining waste.

Pollution: Environmental pollution in general, may be described as the contamination of the environment with harmful wastes arising mainly from human activities. These activities release certain materials which produce pollution in the atmosphere water and soil. In simple words, environmental pollution may be defined as direct or indirect changes as a result of human activities, which adversely influence the biological and non-biological equilibrium of the environment.

The term biodiversity is used by Walter and Roses in 1985. Biodiversity means the existence of a large number of different kinds of animals and plants which make a balanced environment. According to “Convocation on biological diversity (1992)”-Biodiversity is present in terrestrial, ocean and aquatic ecosystem. This diversity present in between same species, different species and in different ecosystem.

Environment: Environment means “surrounding”. First definition of environment was given by “Ernst Haeckel”. According to this - The relation between all organic and inorganic atmosphere of any animal is called environment.

Natural resources are the resources present naturally in the environment. These resources are used by human being for their survival. Minerals, building stones, forests, and various energy resources are known as natural resources. Natural resources have been extracted and utilized since ancient times but as the population increased, the demand of natural resources are increasing day by day.

About 25% of worldís total food production is lost due to insects, bacteria and rodents after harvesting.

Indiaís exports of Processed Food was Rs. 31563.43 Crores in 2014-15, which includes products like Mango pulp (Rs. 841.39 Crores), Dried and Preserved vegetable (Rs. 847.11 Crores), Other Processed Fruit and Vegetable (Rs. 2,569.93 Crores), Pulses (Rs. 1,209.51 Crores), Groundnuts (Rs. 4,675.35 Crores), Guargum (Rs. 9,480.00 Crores), Jaggery and Confectionary (Rs. 1,161.81 Crores), Cocoa Products (Rs. 848.62 Crores), Cereal preparations (Rs. 3,038.79 Crores), Alcoholic and Nonalcoholic beverages (Rs. 2,231.58 Crores) and Miscellaneous preparations (Rs. 2,437.77 Crores).

Medicinal plants are non-food non-plantation crops.

These are rich in secondary metabolites viz. alkaloids, glycosides, coumarins, flavonoides and steroids, etc.

Union government of India has started a project on 'Traditional Knowledge Digital Library' under which it is documenting all Ayurvedic formulations in a digital form to avert patent threats from companies in the developed world

Spices: It is defined as vegetable products (non-leafy parts) or mixture thereof, used for flavouring, seasoning and imparting aroma in food. It may be whole form or in ground form e.g. Pepper, Cardamom, Clove, Cinnamon, etc.

These crops are cultivated in an extensive scale in large contiguous areas, owned and managed by an individual or a company and whose produce is utilized only after processing e.g. Coffee, Tea, Rubber, Coconut, Cocoa, etc.

USA ranks 17th in per capita cut flowers consumption.

India ranks 2nd in flower cultivation next to China.

India stands 14th in the world in exporting floricultural products, while the Netherlands and Columbia rank 1st and 2nd, respectively

Olericulture is Latin term ‘Olerus’ meaning ‘pot herb’ and ‘Cultra’ meaning ‘cultivation’.

Definition: Vegetables are those plants wherein parts such as leaf, stem or root can be used for food.

Herbs: Are those plants that are used for food, medicine, scent or flavour.

GENERAL POMOLOGY

Word pomology: Derived from Greek word ëpomeí means ëdevelopment of fruit from inferior ovaryí and ëlogosí means ëto studyí.

Father of systematic pomology: De Candolle.

T. A. Knight attempted 1st artificial hybridization in fruit crops