eChapters

Food is a complex system of inorganic and organic compounds. These compounds are present in food in unique combination and uniquely organized structures, and therefore, every type of food has unique characteristics, nutritive value, sensory quality, texture, etc. Food items are always in physical, chemical and biological dynamics, however rate of change vary from food to food. Those highly perishable in nature undergo faster rate of spoilage as compare to those semi-perishable or stable. Foods are affected by nearly every variable of environment. Heat, cold, light or other radiations, oxygen, moisture/dryness, natural food enzymes, microorganisms, macro-organisms, industrials and agricultural contaminants, time, etc. - all adversely affect the foods resulting to its spoilage or deterioration. Spoilage may be referred to the losses in nutritive value, sensory desirability, safety and aesthetic appeal to the unacceptable level. Level of unacceptability is the subject of socio-economic status and policies of the state. A food which is of unacceptable quality for one society may be of acceptable quality for other society.

History reveals that food was the root cause of many wars and also the battles were won or lost over food spoilage and its control. Wars and the need to provide safe food to armies in the region far away from the areas of their production have always focused attention on the problem of food spoilage, and this valid today even. Some of the most important advancements in the technology of food preservation were made during the war-time. Of these, most important was the technology of preventing food from spoilage for months together developed by French scientist Nicolas Appert for French army. He won awarded money of 12,000 Francs in 1908 for this. The World learnt the art of canning foods in which the food is packed in a sealed metal container and heated sufficiently. He, however, could not explain the principle behind the preservation by canning. Some 50 years later, work of Louis Pasteur explained that the growth of microorganisms was the major cause of food spoilage which are killed in Appert’s method of preservation.

It is a serious disease of apple which not only reduces the quality and size of fruit but also cause premature fruit drop and defoliation. Fruit loses its marketability due to poor quality. It also reduces storage time and cause loss up to 70%.

Soil is the product of various soil forming factors acting on the parent material over a period of time. The parent material is usually devoid of organic matter and consists of variable quantities of sand, silt, clay and carbonates. High temperatures and adequate moisture promote mineral transformations, but these effects are magnified by living organisms and the organic substances they produce. The biosphere and the organic substances they produce are directly or indirectly responsible for the following:

1. Decay of organic matter by microbes leads to the formation of CO₂ which is quantitatively the most important “aggressive” weathering agent because of its tendency to form carbonic acid with water [CO₂ + H₂O → H₂CO₃].

Introduction

Cell surface components such as adhesins, polysaccharides, and proteins play major roles in the adherence of probiotic bacteria to the intestinal epithelium, interactions that might lead to pathogen exclusion and immunomodulation of host cells. Probiotic bacteria have the ability to produce exocellular polymers called Exopolysachcharides (EPSs). These exocellular polymers present in the surface of many lactic acid bacteria, including Lactobacilli.The adhesive properties of lactobacilli are directly linked to their surface properties which are influenced by the structure and composition of their cell wall. The cell envelope of lactobacilli, bacteria, is composed of the bilipidic plasma membrane with embedded proteins encompassed by the cell wall. The bacterial cell wall consists of a thick multilayered sacculus made of peptidoglycan (PG) with teichoic acids (wall teichoic acids (WTA) and/or lipoteichoic acids (LTA)), exopolysaccharides (EPS), proteinaceous filaments called pili, and proteins that are anchored to the cell wall through different mechanisms (Figure 1).

Some species of lactobacilli possess an additional paracrystalline layer of proteins surrounding the PG layer, referred to as the S layer. These macromolecules together may play crucial roles in determining species and strain-specific characteristics of lactobacilli by influencing host-microbe interactions and microbial adaptations to the changing host environment. Several studies implicate that cell surface components, either individually or collectively, involve in host-microbe interactions. Lactobacilli beneficially affect the host in many ways by producing abundant variety of EPSs through the activity of extracellular glycosyl transferases. Approximately 30 species of lactobacilli are described as EPS producers. Among them, the best known are L. casei, L. acidophilus, L.brevis, L. curvatus, L. delbrueckii bulgaricus, L. helveticus, L. rhamnosus, L. plantarum, L. johnsonii, etc.

Soil health management plays a pivotal role in sustainable agriculture and directly influencing plant growth, crop productivity and environmental quality. Healthy soils are essential for nutrient cycling, water retention and supporting a diverse array of microorganisms that contribute to plant resilience. However, modern agricultural practices, including the excessive use of chemical fertilizers, monoculture cropping and improper irrigation, have degraded soil health, leading to nutrient imbalances, reduced organic matter and soil erosion. This has sparked a growing awareness of the need for effective soil health management strategies that not only maintain but enhance soil quality. Innovative tools for soil health management are reshaping plant protection strategies by promoting holistic approaches that focus on maintaining and improving the biological, chemical and physical properties of the soil. These tools range from organic amendments and biofertilizers to advanced diagnostic technologies such as soil microbial profiling, remote sensing, and precision agriculture techniques. Together, they offer a comprehensive framework for addressing soil-related constraints and enhancing plant resistance to pests and diseases.

Abstract
India, with 70% of its population reliant on agriculture, faces a challenge in rural development due to a modest 3.64% agricultural growth rate against a target of 4%, lagging behind the 7-8% growth in manufacturing and services. This disparity leaves rural communities unable to fully benefit from national economic progress. Promoting agripreneurship is a vital strategy to harness rural resources, enhance livelihoods, and achieve balanced economic development. Opportunities abound in agricultural inputs, farming technologies, output processing, and allied sectors like dairy, poultry, horticulture, and sericulture. However, challenges such as limited awareness, weak entrepreneurial culture, poor infrastructure, and insufficient government focus hinder progress. Strategic interventions in these areas can unlock the potential for sustainable rural growth and economic inclusivity.
Keywords: Agripreneurship, Rural Development, Agriculture, Economic Growth, Farming Technologies, Agricultural Inputs, Dairy Development, Horticulture, Infrastructure Challenges, Sustainable Development
 

ABSTRACT

The Shivalik range of Himalayas, represent the most fragile ecosystem in India. In order to see the impact of land treatment, five hilly micro watersheds typical of the region having catchment area from 0.813 to 4.750 ha were selected for study. All the five watersheds were brought under study during 1966. Temporal changes in water yield from hilly catchments of Shivalik were monitored for twenty eight years (1966-1993). The watersheds were treated with annual burning (LT1), contour trenching +afforestation (LT2), cutting of trees, shrubs and over grazing (LT3) and over grazing alone (LT4). One watershed (LT5) was kept as control without any interference. As a result of burning, cutting and grazing there was significant increase in runoff as well as peak flow in the initial years, however, after increase in vegetation through protection from 1977 onwards resulted in decrease in runoff and soil loss.

10.1. Challenges and Opportunities in SMEs

The Nigerian transport system faces great challenges and also offers several opportunities. The predisposing factors include:

• The size of the country: With area coverage of 923,768.64 km2, spanning longitude 30E-160E and latitude 40N-140N Nigeria is a comparatively large country. It is inhabited by over 140 million people. Transportation is a crucial instrument for linking the country economically, socially and politically.

• Nigeria’s vast natural resources: Nigeria is endowed with petroleum, gas and solid mineral resources. The country is also blessed with abundant agricultural and forest resources, which vary by the three ecological zones of the country. The country is endowed with a highly productive open sea with abundant and diverse marine resources within her coastline of 852km bordering the Atlantic Ocean in the Gulf of Guinea and her maritime area of 46,000 km. This variation is a factor in spatial interdependence. Transport plays an important role in the exploitation and distribution of these resources and in the reduction of spatial inequality and in poverty alleviation.

Minimally invasive percutaneous osteosynthesis (MIPO), or minimally invasive fracture repair, was introduced into human orthopedic surgery during the 1990s because of several distinct advantages over traditional open reduction techniques. In MIPO, large incisions to facilitate open reduction are avoided and implants are introduced through small stab incisions in the skin. This led to advent to more biology friendly techniques. These biological techniques lay stress upon maximal preservation of blood supply around the fractured bone by minimal direct handling of the fracture environment. MIPO offer advantages which include preservation of the fracture hematoma; less surgical trauma to the surrounding soft tissues, reduced operative time therefore, decreased risk of infection and ultimately leading to indirect bone healing with abundant callus. Minimally invasive plate osteosynthesis (MIPO) is a novel technique for application of principles of biological fracture healing with a philosophy of dealing with soft tissues with utmost respect. Following advancements in implant technology and development of techniques of indirect fracture reduction this technique gained more popularity. The evolution of MIPO began with the use of bridge plating. Initially a conventional plate is applied for comminuted femoral fractures using long incisions but with preservation of the vastus lateralis muscle resulting in healing with abundant callus. Subsequently, the size of incisions got decreased, rather two small incisions are given at proximal and distal ends and plates are bridged sub muscularly over the fracture fragments. This technique causes minimal distress to soft tissues and bone, provides access to the bone through soft tissue windows, with minimal or no contact with the fracture by indirect reduction tools and leaving behind minimal foot prints.

Introduction

Tea is the most popular and cheapest beverage consumed by two-thirds of the world population. The stimulative effect of tea is due to the presence of caffeine (1.25–4.5 %). Panthothenic acid, caffeine and theophylline present in tea stimulate the nerves and are good for the heart. Tea is grown in 50 countries, predominantly in Asia, Africa and Europe. Of the major tea producers, India, China, Sri Lanka, Kenya, Russia and Indonesia contribute the maximum share to global production. Though the share of India in global tea production has declined over the years, it still retains its status as the largest tea producer with 30 % of world output (2,780 million kg). India can also boast of producing many varieties of tea. Well-known varieties like Darjeeling, Assam and Nilgiris are well-known for their distinctive characters. Assam (24.86 %), West Bengal (15.20 %), Tamil Nadu (6.28 %) and Kerala (2.28 %) are major tea producing states in the country.

Many horticulture schemes have been launched by the Government. The main aim is to expand the area under horticulture with better productivity. These ambitious schemes are as follows.

A. Mission for Integrated Development of Horticulture (MIDH): Mission for Integrated Development of Horticulture (MIDH) is a centrally sponsored scheme from 1st April 2014 for the holistic growth of the horticulture sector covering fruits, vegetables, root and tuber crops, mushrooms, spices, flowers, aromatic plants, coconut, cashew, cocoa and bamboo. Under MIDH, Government of India (GOI) contributes 60% of total outlay for developmental programmes in all the states except states in North East and Himalayas, 40% share is contributed by state governments.

Introduction

The hydrological cycle transfers water and energy between the land and atmosphere, but its regional characteristics make accurate modeling challenging. Hydrological models aim to predict hydrological events and processes, but there are uncertainties in their output due to the complex nature of the system and assumptions made. Empirical models use statistical or mathematical relationships, while process-based models use equations to represent physical processes.

Hydrological modeling involves various steps, leading to uncertainties that can affect the accuracy of model predictions. The four main types of uncertainties commonly encountered are data, model, parameter, and climate uncertainty. Data uncertainty arises due to errors or gaps in the input data, model uncertainty stems from limitations in the model structure or assumptions used, parameter uncertainty arises due to uncertainties in the values allocated to various model parameters, and climate uncertainty refers to uncertainties in the future climate projections used as inputs.

Abstract
Rural women in India play a pivotal role in economic development, particularly through their significant contributions to dairy farming, a key enterprise in rural economies. Despite their extensive involvement in dairy activities such as fodder collection, milking, and animal care, their labour often remains non-monetized, limiting economic empowerment. Dairy farming, bolstered by initiatives like Operation Flood, has made India the world’s largest milk producer, offering profitable opportunities for rural women. Entrepreneurship in dairy farming can economically empower women, granting them decision-making autonomy and social recognition. Government schemes, NGOs, and institutions like KVKs facilitate this through training, formation of Women Dairy Cooperatives, and Self-Help Groups. Success stories from Chittoor, Jajpur, and Valsad highlight women leveraging dairy enterprises for financial independence and community inspiration. Promoting women’s entrepreneurship in dairy farming through skill development and market access is crucial for their socio-economic upliftment.
Keywords: Rural Women, Dairy Farming, Entrepreneurship, Economic Empowerment, Women Dairy Cooperatives, Self-Help Groups, Operation Flood, Socio-Economic Development, Milk Production, Skill Development

Use of animals in teaching is an inevitable process of learning in Veterinary and Animal Science colleges. Consequently, animals have to be handled for anatomical demonstration, surgical practice and used as experimental animals in various investigatory researches. The apprehensions and pain the animals have to suffer from these handlings (mishandlings) have brought the need to look for alternative ways to deal with animals and yet the purpose of learning about them does not diminish. Now-a-days, a growing emphasis is placed on minimizing the overall use of animals alongside advancements in science.

Exacum bicolor, Roxb. commonly known as country kreat is  endemic to Peninsular India. It is a herbaceous perennial with attractive flowers and posseses medicinal properties. Plant is endangered today due to large scale habitat destruction.  Non- lodging nature of plant, attractive bi-colored flower bunches with a long flowering period and good field life offer great future for this plant to be domesticated as an attractive garden flower. Its ornamental value and medicinal properties are yet to be fully exploited.

India is bestowed with a wide array of flowering plants. It represents two of the 18 hotspots of biodiversity in the world; one being the Western ghats and other the North Eastern Himalayas. Nature has also blessed our India with  uniqueness of endemism. Of the 17000 flowering herbs distributed in nine phyto geographical regions of the country, 5700 are endemic. Exacum  bicolor Roxb. is one of the endemic species to Peninsular India. Plant is popularly known as Bharachirata and Habshi chirata in Hindi, Kannamthali in Malayalam, Dodda  chirayuta in Kannada and ceti in Tamil.

Introduction

E lectronic-resources is an umbrella term which refers to provision of digital instruction courseware over the public Internet, private distance learning networks or in-house via an intranet. E-resources most often means an approach to facilitate and enhance access through the use of devices based on information and communications technologies (ICT) like personal computers, digital television, PDAs (Personal Digital Assistant) and mobile phones. The electronic resources might include notes, PowerPoint presentations, video clips or Internet sites.

Online library resources aim at providing materials, information and services by different types of libraries to the end users. These libraries may be in different jurisdictions, but agree to serve one another on the same basis as each service to its own users through the use of ICT. With the rapid growth of information on veterinary science, there are frequent delays in providing service to the end users when traditional library systems are adopted. The cost of providing service is also rising, mainly because of manual methods and duplication of investments in library holdings. ICT enables the use of the Internet, email, discussion forums, and collaborative software to support students and veterinarians through the use of WANs (Wide Area Networks), and may also be considered where greater flexibility and just-in-time access is desired.

One of the most common fractures seen in the dog is comminutuion of femoral shaft, often related to sever impact from an automobile accident or jump from a height. Comminuted fractures are characterized by one or more butterfly fragments and assorted small bone chips that are especially difficult to align accurately and stabilize completely. These complicated fractures require sophisticated repair technique that are capable to resisting compression, bending and rotational forces. Rebuilding of comminuted fractures so that all fragments are accurately aligned and gaps are eliminated is often impossible. Non-union and osteomylitis have their highest incidence in these fractures. Over the years, several techniques are tried to treat comminuted femoral fractures with different success rate and there is a lack of uniform fracture presentation. Hence, it will be difficult to compare different techniques in a particular type of fracture. The present chapter is, therefore, undertaken to evaluate radiographically and histopathologically the efficacy of three different internal fixation techniques in the management of comminuted diaphyseal femoral fracture in dogs.

Clinically healthy, adult mongrel dogs (15) of either sex are randomly divided into groups A, B and C of 5 animals each. In all the animals unilateral comminuted diaphyseal femoral fractures is created under general (thiopental - 5%) anaesthesia and is immobilized with intramedullary (IM) pinning with cerclage wiring (Gr. A), neutralization bone plating (Gr. B) and neutralization bone plating with cerclage wiring (Gr. C) respectively. All the animals are administered broad spectrum antibiotic (streptopenicillin @ I g intramuscularly (dog/day) and analgesic (diclophenac sodium @ l mg/ kg b. wt. daily) and surgical wounds are dressed daily with povidone iodine and antibiotic cream for 5 days postoperatively.

Lateral and oblique views of radiography are taken at the operated site just after the operation and subsequently on days 15, 30, 45 and 60 postoperatively. The radiographs are observed for status of fracture reduction and fixation, progress of healing at the fracture site and complications like fixation failure, osteomylitis etc., if any, at different intervals. Bone sections are collected from the fracture site including adjacent normal bone after sacrificing the animals on day 60. The sections are decalcified using Goodling and Stewart’s solution (80% distilled water, 15% formic acid and 5% formalin) and then processed routinely for H & E staining for histopathological studies

Indian Council of Agricultural Research; formerly known as Imperial Council of Agricultural Research, established on 16^th July 1929 and located at New Delhi. It is an autonomous organization under Department of Agricultural Research and Education (DARE), Ministry of Agriculture and Farmers Welfare, Government of India. It is the apex body for coordinating, guiding and managing research and education in agriculture including horticulture, fisheries and animal sciences. This is one of the largest national agricultural systems in the world.

The ICAR has played a pioneering role in ushering in the green revolution and subsequent developments in agriculture through its research and technology development. Thus, the food grains production increased by 5.6 times, horticultural crops by 10.5 times, fish by 16.8 times, milk by 10.4 times and eggs by 52.9 times to achievenational food and nutritional security during the period of 66 years (1950-51 to 2017-18). It has also played a major role in promoting excellence in higher education in agriculture. Organizational setup of ICAR to achieve mandate is as follows.

The historical origins of diffusion research can be traced back over 200 years. In the early 18th century, French judge and sociologist Tarde wrote "The Laws of Imitation" (1903). He viewed the diffusion of innovation as arising from conscious and unconscious social imitations among individuals. Tarde introduced seminal diffusion concepts such as the S-curve, opinion leaders, and perceived compatibility.

Following Tarde, German political philosopher and sociologist Simmel published "Conflict and the Web of Group Affiliations" (1922). In this work, Simmel explored how the relationships in which individuals are embedded influence their responses to innovations. He also suggested that individuals outside a social system can introduce new ideas into that system.

In the 1920s, American cultural anthropologist Kroeber studied both the spread of innovations and how cultures recursively shape innovations. These early works contributed to the development of diffusion research in sociology during the 1920s and 1930s.

Polymerase Chain Reaction (PCR) is a cutting-edge molecular technique widely utilized for the swift and accurate detection of fish pathogens, especially bacterial infections. By amplifying targeted DNA sequences from minimal sample quantities, PCR enables the identification of pathogens even at very low concentrations.
In India, PCR has become crucial to disease diagnostics in aquaculture, particularly as farming intensifies. It offers early detection of viral, bacterial, fungal, and parasitic infections, including subclinical cases. Given India’s vast range of aquaculture species and environmental conditions—from carp and catfish farming in West Bengal and Andhra Pradesh to shrimp and seabass cultivation in Tamil Nadu and Kerala—PCR diagnostics are increasingly adopted in research institutions, government labs, and commercial hatcheries.
PCR detects the genetic material of pathogens in fish tissues, blood, mucus, or even water and sediment samples. Its high sensitivity and specificity make it ideal for early-stage diagnosis and disease monitoring. Institutions like CIBA, CIFA, TNJFU, and KUFOS have incorporated PCR into their routine health assessments.
The process involves collecting tissue samples (such as gill, liver, or kidney), extracting DNA or RNA, and using pathogen-specific primers in a thermocycler to amplify the target sequence. DNA-based pathogens undergo direct DNA extraction, while RNA viruses require RT-PCR. The results are then analyzed through gel electrophoresis or real-time PCR.