eChapters

The International Ergonomics Association (IEA) defines ergonomics or human factors as the scientific discipline concerned with the understanding of interactions among humans and other elements of a system, and the profession that applies theory, principles, data and methods to design to optimize human well-being and overall system performance.

Concept of Evaluation

Evaluation is the structured interpretation and giving of meaning to predict or actual impacts of proposals or results. It looks at original objectives, and at what are either predicted or what was accomplished and how it was accomplished.

Context Based Meaning and Concept

The meaning of evaluation is the way of judging or calculating the quality, importance, amount, or value of something: Evaluation of this new treatment cannot take place until all the data has been collected.

In its earliest uses (documented in the 15th century), context meant “the weaving together of words in language.” This sense, now obsolete, developed logically from the word’s source in Latin, contexere “to weave or join together.

Concept of Evaluation: Meaning and concept in different contexts
The term “evaluation” originates from the Latin word “Valupure,” which signifies the value attributed to a particular entity, concept, or action. Evaluation is a systematic process that involves the periodic comparison of actual outcomes and impacts against those initially planned or anticipated. It is designed to assess the overall worth of an endeavor, thereby facilitating learning and improvements for future initiatives. This process encompasses the structured and objective assessment of an ongoing or completed project, program, or policy, including its design, execution, and results. The primary objective of
evaluation is to determine the relevance, achievement of objectives, efficiency, effectiveness, impact, and sustainability of a given intervention. Through this approach, evaluation seeks to provide credible and useful information that supports informed decision-making for stakeholders, including beneficiaries and donors. By integrating lessons learned from past experiences, evaluation enhances the strategic planning and implementation of future projects, ensuring continuous improvement and better resource utilization. Evaluation is an essential tool in both public and private sectors, allowing organizations to measure their performance against predefined benchmarks. It serves as a crucial mechanism for accountability, ensuring that resources are utilized effectively to achieve intended goals. Moreover, evaluation fosters transparency by offering objective insights into the successes and shortcomings of initiatives, thereby reinforcing stakeholder trust and engagement. There are several types of evaluation, each serving a distinct purpose.

Concept of Education

Education is derived from the Latin terms Educare (Educere) and Educatum. The word “educare” means to train, nourish, or shape. “Educere” means “to lead froth, to pull out.” The Latin term “Educatum” refers to the act of teaching. “Shiksha” and “Vidya” are two significant Sanskrit words that stand out as equivalents of English education. Shiksha is a word derived from “Shah,” which means “to control or discipline.” The term “Vidhya” is derived from the word “Vidh,” which means “knowledge.” During the ancient schooling period, the most essential aspects of human personality were discipline and knowledge.

A. Answer the following questions

1.    What is adulteration?

Ans: It is an intentional admixture of a pure substance with some cheaper and low quality ingredients in order to make more profit.

2.    What is sampler?

Ans: The appliance used for the collection of samples is knownas sampler.

3.    What is dry rolling?

Ans: The process of disintegration of kernels into particles with the application of pressure by moving rollers is known as dry rolling or cracking.

4.    What is crimping?

Ans: The process of rolling of feed ingredients with the use of corrugated rollers is called crimping

5.    What is crumbles?

Introduction
Fish and fisheries play a significant role in Kashmir's economy and people's livelihoods. Kashmir abounds with water bodies the lakes, rivers, and streams run the course to produce a favourable environment for numerous species of fish. Apart from the natural water bodies, fish farming has also emerged significantly in Kashmir, where several small-scale fish farmers are engaged in the fish rearing and fisheries activity in ponds and race ways, both for commercial and subsistence purposes (Islam, 2020). The fish farmers do more than just contribute to local food supplies; they also provide money and work for people locally. However, the fish and fisheries sector of Kashmir is faced with various challenges. The challenges range from overfishing, Exclusively Distributed by NIPA GENX Electronic Resources and Solution Pvt. Ltd. New Delhi environmental degradation, and pollution to the lack of infrastructure for fish handling and processing and climatic change. Despite all odds against this sector, the government and other agencies/organizations are trying their best to achieve sustainable management and development of fisheries in Kashmir. Moreover, full- and part-time work by fish farmers and fish workers, seasonal or occasional, supplement thousands of livelihoods with additional income in the sector's activities (Qayoom and Bhat, 2015). Most of those engaged in small-scale fisheries and aquaculture in Kashmir are self-employed, hence directly contributing towards food security within their households and communities. Due to the ever-increasing demand for protein-rich food, the production of fish has elevated around the world. According to the Food and Agriculture Organization, fish production attained 179.2 million metric tons in 2020, which is valued at USD 345 billion (FAO, 2020). This shows a large increase from the years of the 1990s when world fish production was 100 million metric tons.
Fish Production of India
Trends in fish production of India indicate a continuous rise of an annual average growth rate of 8.61% over the period from 2014-15 to 2021-22 (dof. gov.in). It is due to inland fisheries, which contributes around 75 percent of the total fish production in the year 2021-22, while the remaining 25 percent is from marine fisheries (dof.gov.in). Value-wise, the country's fish production has also had a massive outflow in exports, touching US$ 8.09 billion in FY 2022-23 (Handbook of fisheries statistics, 2023).

Fish and shellfish seed rearing, a crucial branch of aquaculture, involves the controlled breeding, nurturing, and development of aquatic organisms—primarily fish and shellfish—from their earliest life stages. This process ensures a sustainable and reliable supply of high-quality aquatic seed stock, especially vital in regions facing declining wild fisheries.
Seed rearing acts as the intermediate stage between hatching and grow-out. It focuses on the careful management of larvae or juveniles until they grow large enough to be transferred to grow-out systems such as ponds, cages, or pens. The main goal is to enhance survival rates, promote healthy growth, and produce robust fry or post-larvae that can thrive in commercial farming conditions.
In aquaculture terminology, “seed” refers to young aquatic organisms—fish fry, fingerlings, or shellfish post-larvae—sourced either from hatcheries or natural environments. These early-stage organisms are highly vulnerable to environmental changes and disease, requiring meticulous care. Success during this stage depends on optimal nutrition, water quality control, and disease management.
The seed rearing process typically begins shortly after hatching. For fish, stages include yolk-sac larvae, free-swimming larvae, fry, and fingerlings. For shellfish such as shrimp, development proceeds through nauplii, zoea, mysis, and post-larvae stages. Each phase demands close attention to water parameters like temperature, salinity, oxygen levels, and hygiene.
Seed rearing can take place in a variety of systems—indoor tanks, nursery ponds, hapa nets, or specialized seed rearing facilities—depending on the species and production scale. In India and other tropical regions, both extensive systems (natural feed-based) and intensive systems (involving formulated feeds and aeration) are widely practiced. Innovations such as biofloc technology, probiotics, and recirculating aquaculture systems (RAS) have significantly improved outcomes.

Fish nutrition is a key component of aquaculture, as it directly affects the growth, health, reproduction, and overall efficiency of farmed species. Unlike land animals, fish primarily obtain their energy from proteins and fats, making their dietary needs distinct and specific to each species. With the expansion of aquaculture and rising demand for high-quality fish protein, ensuring nutritionally balanced diets for fish has become increasingly important. Fish require both macronutrients—proteins, fats, and carbohydrates—and micronutrients, including essential vitamins and minerals. Proteins are especially important for tissue building and enzymatic functions, while fats provide energy and vital fatty acids needed for cell membranes and hormone synthesis. Although carnivorous fish digest carbohydrates less efficiently, they are still used as a low-cost energy source. Vitamins such as A, D, E, and C, and minerals like calcium, phosphorus, zinc,

Fish pathology is a specialized area within veterinary and aquatic sciences that focuses on understanding diseases affecting fish—their origins, progression, effects, and methods of control. With aquaculture playing an increasingly critical role in meeting global protein demands, maintaining fish health is essential for the long-term viability and efficiency of aquatic farming. Like other animals, fish are prone to numerous diseases caused by a variety of pathogens, which can impact both wild and farmed species, leading to serious economic, ecological, and health issues.
The field draws on various disciplines, including parasitology, immunology, microbiology, histopathology, and molecular biology, to study disease mechanisms and how fish interact with infectious agents. Disease outbreaks in fish may stem from infections, poor environmental conditions, overcrowding, or insufficient nutrition. Among these, infectious diseases pose the greatest threat, caused by viruses, bacteria, fungi, and parasites, each differing in severity, transmission methods, and environmental resistance.
Viral infections, such as those from IHNV or KHV, can rapidly spread and cause high death rates, particularly in hatchery environments where treatment options are limited. Bacterial diseases, triggered by agents like Aeromonas hydrophila, Vibrio anguillarum, or Edwardsiella tarda, often enter through damaged skin or gills, causing ulcers, bleeding, and internal organ damage. Fungal diseases, like those caused by Saprolegnia, are usually secondary infections that develop when fish are already weakened. These fungi attack the skin and gills, forming cottonlike lesions and damaging tissue.

In broad perspective, forages are plants and crops used for animal feeding. It includes all the natural and cultivated crops, shrubs, and trees etc., used in livestock feeding. Here, fodder specifically denotes the cultivated crops exclusively used for livestock feeding. Though, they are synonymously used in books, a student of veterinary science should able understand the difference between forages and fodder. Fodder is a term mainly used in intensive livestock farming where stall feeding is preferred over grazing to optimize the efficiency of production per unit area. Though, most of the tree's leaves are used for animal feeding, some of the trees being cultivated exclusively for animal feeding and those are called fodder trees and others called as multipurpose trees.

1. Sample: One or more units selected from a population of units, or a portion of material selected from a larger quantity of material
2. The Standard Operating Procedures (SOPs) should contain full working instructions as well as information on applicability, expected performance, internal quality control (performance verification) requirements and calculation of results. It should also contain information on any hazards arising from the method, from standards or from reagents.
3. Analytical Samples: The quantity of the analytical sample to be used is usually indicated in tests and assays. Unless otherwise specified, the quantity used may deviate by 10% from that stated. All quantitative determinations should be conducted on triplicate test portions and in these cases, the amount actually taken should be accurately weighed or measured and the result of the analysis calculated on this exact quantity. When substances are to be “accurately weighed” in a test or assay, the weighing is to be performed in such manner as to limit the error to ± 0.1% or less. Quantities smaller than 100 mg should be weighed to the nearest 0.1 mg.

In today’s global food industry, packaging has evolved into an essential component that extends beyond basic containment. The rapid expansion of food distribution networks and increasing consumer demand for quality, convenience, and safety have transformed packaging into a sophisticated, multi functional system. Food packaging now serves critical roles in preservation, safety, marketing, and sustainability, aligning with both global and regional standards that cater to a wide array of consumer needs. This chapter provides an overview of the importance of food packaging, discusses the current landscape in both global and Indian markets, identifies key trends and challenges, and explores packaging’s role in the modern food supply chain. Each section aims to illustrate how food packaging impacts food quality, longevity, and overall consumer satisfaction, highlighting the industry’s ongoing innovations and adaptations to regulatory and environmental concerns. 1.1 Definition and Significance of Food Packaging Definit

1.1. Introduction

Food packaging involves enclosing the food product to ensure its safe delivery to end consumer in safe condition. Packaging is one of the integral components of the food industry. In order to maintain the basic nutritional and functional attributes of food material, they must be packaged safely. A faulty package can ruin all the efforts made to develop the food product. Selection of right packaging system and packaging material is essential to arrest the deterioration of food products from physical, chemical and biological factors. 

Food preservation involves treating and safely handling food to prevent or delay spoilage while retaining colour, texture, flavour and nutritional value. Food deterioration may result from microbial growth, indigenous enzymes, oxidation, physical damage, insects, moisture, temperature and other environmental conditions. Bacteria, fungi and other microorganisms contaminate food through soil, water, air and biological sources. The effectiveness of preservation therefore depends on controlling intrinsic factors such as pH, water activity, nutrients and redox potential, together with extrinsic factors such as temperature, humidity and storage atmosphere. Understanding these mechanisms provides the scientific foundation for selecting safe and effective preservation methods.

Food processing is a fundamental component of the food industry that transforms raw materials of plant and animal origin into safe, nutritious, convenient and value-added products. This chapter introduces the basic concepts and evolution of food processing, tracing its development from traditional practices to modern technologies driven by consumer demand. It explains the major purposes of processing, including shelf-life extension, food variety, safety and preservation of nutritive value. The chapter also examines primary, secondary and tertiary processing and discusses the effects of processing on macronutrients and micronutrients. Understanding these fundamentals provides a foundation for evaluating conventional and emerging food-processing technologies.

Food safety and hygiene has been an age-old concern. However, today it has become an important aspect due to the rise in foodborne illnesses for the past few decades globally. It is estimated by WHO that annually 600 million suffer from foodborne diseases as a result of unsafe food consumption while 4,20,000 deaths are recorded globally.

Food Science is one of the ancient sciences and the genesis originates to the very beginning of human civilization. The advent of food science was associated with practice and observation by humans before establishment of scientific concepts. The ancient man knew that roasting or smoking of meat improves the edible quality and digestibility. As a consequence, he started practicing the same much before the reasons for the same could be established. Many of the modern preservation concepts had their origin in prehistoric period itself as humans could use techniques such as dehydration, fermentation and pickling to their advantage to improve the sensory attributes of the products and also to enhance their shelf life. Humans during the Pre-Neolithic period about 2,50,000 years before used fire for cooking meat. During the Paleolithic period humans not only roasted food but also developed grinding, pounding and drying. During the Mesolithic era, humans were desperate for food and got involved in extensive hunting and fishing. During the same time domestication of animals took place and animal husbandry became a reality (Stewart and Amerine 1982). The Neolithic period made qualitative changes in the food habits of humans and they changed from a food gathering and hunting society to one of food production (Heizer and Elsasser 1980).

INTRODUCTION

Fish culture as a hobby or business is well established in India. Increased interest in fish culture has also increased awareness and experience with parasites that affect fish health, growth, and survival. Information provided in this chapter is intended for the novice fish culturist as a guide to common parasites of freshwater fish. Identification of parasites and their basic treatment is included; however, any herbal treatment alone or biological cum chemical treatment may be choosen for eradication purpose (Das et al., 1995a).

A Overview

Genetics is a branch of biology concerned with heredity and variation.

Genes are the unit of inheritance and are composed of DNA.

The effects of genes are noticeable at the molecular, cellular, family, and population levels.

Genes are DNA sequences that instruct cells to produce particular proteins, which in turn determine traits.

Genes can exist in more than one form and the variants of a gene arise by mutation.

An allele is a variant of a gene that alters its expression in a detectable way. Alleles can be dominant or recessive.

A polymorphism is a particular sequence of DNA that varies in one percent or more of the population.

Single nucleotide polymorphisms are single base pair sites that differ among individuals.

Chromosomes consist of genes and associated proteins.

The human genome consists of 22 pairs of autosomes and one pair of sex chromosomes.

A karyotype is the photographic catalog of the human chromosomes.

Specialized cells and tissues arise by differentiation from the stem cells of the early embryo.

Pedigree diagrams enable recessive and dominant traits to be followed through multiple generations of a family.

A gene pool is the collection of alleles in a population.

Comparative genomics is leading to a more detailed and subtle understanding of evolutionary relationships among species

Introduction

A geographic information system or geographical information system (GIS) is a system designed to capture, store, manipulate, analyze, manage, and present all types of spatial or geographical data. The acronym GIS is sometimes used for geographic information science (GIScience) to refer to the academic discipline that studies geographic information systems and is a large domain within the broader academic discipline of geoinformatics. What goes beyond a GIS is a spatial data infrastructure, a concept that has no such restrictive boundaries. In a general sense, the term describes any information system that integrates stores, edits, analyzes, shares, and displays geographic information. GIS applications are tools that allow users to create interactive queries (user-created searches), analyze spatial information, edit data in maps, and present the results of all these operations. Geographic information science is the science underlying geographic concepts, applications, and systems.

GIS is a broad term that can refer to a number of different technologies, processes, and methods. It is attached to many operations and has many applications related to engineering, planning, management, transport/logistics, insurance, telecommunications, and business. For that reason, GIS and location intelligence applications can be the foundation for many location-enabled services that rely on analysis and visualization. GIS can relate unrelated information by using location as the key index variable. Locations or extents in the Earth space–time may be recorded as dates/times of occurrence, and x, y, and z coordinates representing, longitude, latitude, and elevation, respectively. All Earth-based spatial–temporal location and extent references should, ideally, be relatable to one another and ultimately to a “real” physical location or extent. This key characteristic of GIS has begun to open new avenues of scientific inquiry.