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Research techniques are the various methods and tactics strategically used to collect the materials, record the observations and analyse the data for study. These approaches provide a structured framework for achieving research objectives and validate the findings.

Anatomy is the oldest scientific discipline of the medicine, which deals with the form and structure of the organisms. The first documented scientific dissection on the human body were carried out as early as in the third century BC in Alexandria. At that time anatomists explored anatomy through dissection of animals, primarily on pigs and monkeys. The first written evidence of anatomical terms and rational observations can be found in the Egyptian medical papyri. The work of Andreas Vesalius played a significant role in medical research and education. During the 19th century the research in anatomy increased due to discovery of microscopes which allowed in-depth studies of body tissues and their components. However, in the last 100 years due to technological innovations and the growing understanding of related sciences progress in anatomy took place at a much faster pace. A thorough knowledge of research techniques in anatomy is very important to perform systemic experiments to reach a definite conclusion. The technique should be selected according to the aim and field of research. Here we are going to discuss some of the important gross anatomical techniques.

Veterinary anatomy is a cornerstone of veterinary education, essential for diagnosing and treating animals. It imparts knowledge about origin, form, structure and function in animals. Traditionally, veterinary anatomy education has been delivered through lectures, dissections, and practical sessions. Anatomy teaching has undergone significant changes to keep up with advances in technology and to cater for a wide array of student specific learning approaches. In recent time a generalized decline in dissection based veterinary anatomy teaching has been observed due to implementation of new curriculum of veterinary anatomy by VCI, legal and ethical issues, unavailability of ethically sourced cadaver, reduced teaching hour to veterinary anatomy, reluctance of students as well as teacher to handle formalin fixed cadavers and specimens etc. Even with the introduction of modern instructional technology and improved teaching methods, dissection continues to remain a foundation of veterinary anatomy teaching. Conventional methods, while foundational, face significant limitations, including the availability of resources and variability in hands-on experiences. As veterinary education evolves, there is a growing recognition of the potential for disruptive technologies to address these challenges and enhance learning outcomes.

As we delve into the subcellular world, we uncover pivotal insights for advancing our understanding of animal health and disease. Immunoelectron microscopy (IEM) is the same as immunohistochemistry or immunocytochem istry at the light microscopy level. The Power of IEM combines the high-resolution imaging capabilities of electron microscopy with the specificity of immunolabeling. This robust procedure allows us to visualize the precise local ization of proteins and other molecules within cells, providing a detailed cellular architecture and function map. This technique is known as immunogold staining (IGS) or immunogold labelling (De Paul et al., 2012).

Principle of Immunoelectron Microscopy (Iem)

The basic principle of IEM is based on the specific binding of a primary antibody to the target antigen in the sample. A secondary antibody, which is conjugated to colloidal gold particles, is then added. This secondary antibody binds to the primary antibody. The gold particles are electron-dense, meaning they scatter electrons effectively. If viewed under an electron microscope, these particles appear as dark spots, indicating the location of the target antigen. This method demonstrates very specificity and high contrast, making it easier to visualize and study the distribution of proteins at the ultrastructural level (Schwartzbach & Osafune, 2010; Murtey, 2016).

Introduction

Equines are a fascinating and diverse group of mammals that have played a significant role in human history and continue to do so today. From the majestic horses used for transportation, sport, and work, to the hardy donkeys and mules used for farming and packing, equines have been an essential part of human societies for thousands of years. Equines are social animals and usually live in groups or herds. They form strong bonds with their herd members and communicate with each other through a range of vocalizations, body language, and scent cues. Equines also engage in playful behaviour, particularly when they are young. They can be seen running, kicking, bucking, and frolicking in the fields as a way of expending energy and developing physical coordination [6].

This is a group of mammals that belong to the family Equidae known for their slender legs, hooves, and long faces. Large, soft and expressive eyes, a velvety muzzle, a forelock adorning a smooth face these are just a few of the attributes of the equine head that beckon horse lovers. The equine head, which accounts for 10% of a horse’s total weight, houses a series of intricate turbinates within the nasal passageways. Turbinates are a network of bones, vessels, and tissue that warms, humidifies, and filters the air the horse inhales. In addition, seven air-filled sinus cavities called the paranasal sinuses sit on each side of the head, above, below, and between the eyes. A young horse starts out with teeth that extend up into the sinuses; with wear and age, the teeth descend into the mouth. Eventually, in a horse’s golden years, the sinuses are mostly empty of teeth.The head also contains a plexus of nerves and blood supply in addition to the eyes, ears, nostrils, lymph nodes, guttural pouches, brain, and more than 30 bones[6,7].

The present study was carried out on gross anatomical and morphometrical studies of extensor and flexor muscles of digits of forelimb and hind limb in six adults non-descript dogs irrespective of sex. Common digital extensor muscle was originated from the lateral (extensor) epicondyle of the humerus with multiple tendons of insertion whereas lateral digital extensor was originated from the lateral ligament of the elbow joint. Extensor pollicis longus and indicisproprius muscle was present under the lateral digital extensor and superficial to the abductor pollicis longus and originated from the middle third of the dorsolateral border of the ulna. Deep digital flexor muscle was comprised of two heads, flexor hallucis longus, and flexor digitorum longus.The average tensile strength for common digital extensor, lateral digital extensor, extensor pollicis longus and indicisproprius, and abductor pollicis longus muscles were 2.65 ± 0.36 kg, 2.20 ± 0.47 kg, 1.60 ± 0.38 kg and 1.95 ± 0.35 kg respectively. Mean Muscle belly length for common digital extensor, lateral digital extensor, extensor pollicis longus and indicisproprius, and abductor pollicis longus muscles was 8.30 ± 0.51 cm, 6.68 ± 0.45 cm, 4.80 ± 0.68 cm and 8.08 ± 0.73cm respectively. Mean tensile rest strength for the superficial digital flexor, deep digital flexor, interosseous muscle, f lexor pollicis brevis and lumbricales was 7.61 ± 0.56 cm, 8.53 ± 0.51 cm, 2.76 ± 0.47 cm, 0.73 ± 0.13 cm and 0.85 ± 0.17 cm respectively. Mean muscle belly volume of superficial digital flexor, deep digital flexor, interosseous muscle, flexor pollicis brevis, and lumbricales muscles was 6.61 ± 0.72 cm3, 7.84 ± 0.53 cm3, 0.24 ± 0.07 cm3, 0.03 ± 0.01 cm3, 0.02 ± 0.00 cm3 respectively.Mean tendon cross section area for muscles tibialiscranialis, long digital extensor, lateral digital extensor, and extensor digitorum brevis was 0.05 ± 0.00 cm2, 0.06 ± 0.00 cm2, 0.04 ± 0.00 cm2 and 0.04 ± 0.00 cm2 respectively.

This practical assignment is related to write the technical matters in simplest form to be digested by the common readers. It also helps in summarizing the entire matter related to new technology or innovation in a nutshell.

PURPOSE

 To acquaint the students how to write summary of a topic

 To improve technical writing skills

Definition

Fracture of Upper 3rd of tibio-fibula Presence as a difficult Problem for the Surgeon to immobilise it Perfectly. As the fracture site generally moves within the imobiliser. Its healing becomes difficult. The aimof immobilisation technique of upper 3rd tibio-fibula fracture is to fix the upper 3rd of tibio-fibula with the anterior half of ring of thomas splint with bandages. This is an important step for achieving no movement of fracture fragment during healing.

Indication

Correction of upper 3rd fracture of tibio-fibula (Fig.1) by thomas splint application.

There is an urgent need to take up productivity improvement programmes in the senile plantations, with fresh stock supported with appropriate and integrated combination of inputs, pruning and grafting as well as training techniques taking care of health, vigour and productiveness. This require proven technology implementation through individual farmers, farmers’ cooperatives, self-help groups, NGOs, growers’ associations and commodity organizations. However, technology depends upon the nature and requirement of a particular fruit crop. The rejuvenation technology for transformation of old senile orchards into young productive ones in sustained manner requires well-planned and concerted efforts. Though processes and procedures require scientific skill with precision in application/implementation as these important commercial crops have been associated with livelihood of many farmers/growers, i.e. why economic production is of utmost important for the growers as it holds true for all the region specific important commercial fruit crops in general.

The successful translation of rejuvenation technology in old senile orchards includes sequential operational steps. They should be followed in scientific manner for different category/group of fruit crops.

Research methodology is the process of planning and executing a research study, including defining the research questions, selecting appropriate research design, data collection, analysis, and interpretation. The methodology is a blueprint of the research study that guides the researcher through each step of the research process. The research methodology is essential to ensure the validity, reliability, and generalization of the study.

This chapter provides an in-depth explanation of the research methodology used in the research. The purpose of this chapter is providing a clear understanding of the methods, techniques, and concepts used to design, implement, and analyse the research study. By understanding the methodology, readers can evaluate the reliability and validity of the study results.

The chapter is divided into several sub-headings for easy understanding of the methodology used:

• Research locale

• Sampling design

• Pilot study

• Variables and their measurements

Analytical methods for study of soil microbes

The analytical techniques for study of soil microbes are grouped under the following heads :

• Determination of form and arrangement of microorganisms in soil
• Isolation and characterization of soil microorganisms
• Detection of microbial activity in soil
• Determination of microbial biomass.

For the above, the different analytical methods used are described below.

Soil organisms play vital role in agri-ecosystem processes such as nutrient cycling, soil detoxification and organic matter decomposition. They also influence water infiltration by improving soil porosity through production of polysaccharides. Rhizosphere microorganisms help plant to acquire macro and micronutrients, produce phytohormones for better crop establishment. Soil microbes process organic matter to provide a balance of minerals and nutrients which are utilized by plants to achieve healthy and vigorous growth. Microbes also colonize on plants parts and offers protection by excluding many plant pathogens. They are the basic indicators of soil fertility and are responsible for maintaining a hospitable environment for crop growth.

Schultz Method for Cholesterol
Frozen sections; cold calcium-cadmium-formalin fixed sections
Protocol
1) Thoroughly wash the sections in distilled water for 24 hours, changing the water several times.
2) Incubate the sections in 2.5% ferric ammonium sulphate solution at 37oC for 7 hours.
3) Wash the sections three times in fresh acetate buffer, allowing 1 hour for each wash.
4) Rinse briefly in distilled water.
5) Immerse in 5% formalin for 10 minutes.
6) Mount the sections onto slides, blotting the edges to remove excess water. Do not let the sections dry out.
7) Place a drop of a 1:1 mixture of sulphuric and acetic acids on a coverslip. Invert the slide and lower it onto the coverslip. Then turn the slide rightside up and gently press the coverslip to flatten the section. Hold the coverslip by its corners and gently oscillate it a few times to ensure even spreading.

The drones are configured to traverse the field and acquire photos and sensor data in alignment with the predetermined flight plan. High-resolution cameras get visual data, whereas multispectral sensors gather information on light wavelengths beyond the visible spectrum, thereby offering insights into plant health and stress levels.
During drone flights, essential techniques for data acquisition encompass photogrammetry utilizing overlapping high-resolution images, GPS tracking for accurate location data, IMU (Inertial Measurement Unit) sensors for monitoring attitude and movement, ground control points (GCPs) for precise georeferencing, multispectral or hyperspectral imaging for comprehensive spectral analysis, LiDAR scanning for the generation of 3D point clouds, and data logging systems to document sensor readings throughout the flight, all while meticulously planning flight paths and accounting for variables such as lighting and weather conditions.
Drones have emerged as a vital competitive advantage in the inspection of various asset types, optimizing time, reducing costs, and mitigating risk. Historically, an inspection necessitated an inspector to ascend the structure, capturing images and doing measurements manually from considerable heights.
This procedure is intricate; it necessitates extended hours and the presence of numerous experts on site for safety. The data generated by inspectors through manual pictures and measurements is limited: manual inspections may necessitate many trips to collect adequate information for necessary maintenance.
Manually operating a drone to obtain the data necessitates training, expertise, and extensive experience. A pilot collecting data for a tower inspection must comprehend the requirements of the inspectors. The pilot must comprehend how to maneuver an aircraft accurately around an asset to obtain precise aerial photos, regardless of barriers, wind conditions, or the necessity to replace batteries during the trip. The data must be examined and converted into a digital format that is

Examination of faecal sample for helminthic infections

Gross Examination: It precedes the microscopic examination of faecal sample and includes collection of information as below:
    a)    Consistency: Condition of the faeces should be noted as soft, watery (diarrhoeic) or hard but it should be kept in mind that the description varies with the concerned animal species.
    b)    Colour: It is to report the unusual faecal colour, if any as mud coloured foul  smelling faeces in calves indicate ascarid infection; tarry coloured faeces in dog is pinpointing of hookworm infection.

Principle

The majority of cell lines are cultivated as monolayer adherent cells, meaning they only grow on the surfaces of culture vessels. However, there are particular cells that are non-adhesive and do not rely on external support for their growth, referred to as suspension cells. A suspension culture, is a cell culture where individual cells or small cell clusters grow and multiply in a stirred growth medium, forming a suspension. Subculturing, also known as passaging cells, involves transferring cells from a previous culture into fresh growth medium to allow the cell line to continue growing. Suspension cultures involve the suspension of cells in a liquid medium and agitation at a specific speed to ensure that the cells are uniformly exposed to nutrient media from every angle. This method prevents cell aggregation and enhances nutrient absorption, thereby promoting cell growth. The maintenance of these cultures is achieved by transferring the cells from the early stationary phase to a fresh medium through subculturing. During the incubation period, there is an increase in both cell division and cell enlargement, leading to rapid cellular growth. The viability of cells in the suspension decreases after the stationary phase due to the exhaustion of certain factors or the accumulation of toxic substances in the medium. This decrease in the viability of the cells further reduces the growth rate of the entire culture. Next, a portion of the cell suspension is added to the freshly prepared medium with the same composition.

Laparoscopy is an operative procedure designed for the visual inspection of peritoneal cavity and biopsy of organs. Laparoscopy is a valuable diagnostic and therapeutic tool in clinical medicine. In the field of cholecystectomy, appendicectomy, vagotomy, hernia repair and adhesion release laparoscopy surgery offers significant advantages over open surgery in humans. For gynecological problems like ovarian cyst or in the case of oophorectomies and hysterectomies, laparoscopic surgery (‘scarless surgery’) is now considered a better alternative in addition to laparoscopic sterilization. Only in the last 15 years laparoscopy is widely used in different animal species for research and clinical diagnostic and therapeutic purposes. The first canine laparoscopy procedures were performed in the early 1900’s (Kelling, 1902). Anderson (1937) used dogs to perfect his skills prior to human clinical trials. The first clinical application of laparoscopy in dog’s involved ovarian function studies in the early 1960’s and Lettow reported the first laparoscopic liver biopsy procedure in a dog in 1972.

Bielschowsky’s Method for Axis Cylinders and Dendrites
Tissues fix in 10% neutral buffered formalin and process for routine paraffin sections Protocol:
1) Deparaffinise the paraffin sections with two changes (10 minutes each) of xylene.
2) Descending grades of ethanol from absolute to 50% solution (2 minutes each).
3) Hydrate the sections with distilled water 5 minutes.
4) 2% Silver nitrate solution for 48 hours, in the dark.
5) Rinse quickly in double distilled water.
6) Ammoniacal silver solution 10-20 minutes or until sections turn a deep brown.
7) Rinse in distilled water.
8) Reduce in 20% formalin solution for 5 minutes. Sections appear a dark brownish black.
9) Rinse thoroughly in distilled water.
10) Tone in gold chloride solution for 1 hour. Sections will be a reddish violet colour.
11) Rinse thoroughly in distilled water.
12) Sodium thiosulfate solution for 1 minute.
13) Wash in tap water.
14) Dehydrate in ascending grades of 90% to absolute ethanol (one minute each).

The Millon Reaction
Tissues fixation in 10% neutral buffered formalin solution
Protocol
1) Deparaffinise the paraffin sections with two changes (10 minutes each) of xylene.
2) Descending grades of alcohol from absolute to 50% solution (2 minutes each).
3) Hydrate the sections with distilled water for 5 minutes.
4) Transfer the sections to a small beaker with the reagent and gently boil.
5) Stop the heating process and let the solution cool to room temperature.
6) Remove the sections and rinse them three times in distilled water (2 minutes each).
7) Dehydrate in ascending grades of 90% to absolute alcohol (one minute each).
8) Clear in xylene, two changes of 30 minutes each.
9) Mount glass cover slip with DPX.

9.1. ITKS for Seed Treatment and Sowing

• Yield of almost all the crops depends on seed quality.
• Even if it is a quality seed, it should be a dried one because well dried seeds will have higher longevity and keeping quality.
• It better to change the seeds at least once in two years.
• To maintain the seed viability and prevent it from outside damage, the outer shell is not separated.
• The seeds are generally stored along with the leaves of neem (Azadirachta indica), pungam (Pongamia pinnata), notchi (Vitex negundo) and thumbai (Leucas aspera).
• Six weeks nursery period is enough for six months duration of the crop.
• Shallow sowing is followed in dry lands.
• Severing the broadcasted seeds in dry lands with soil.
• Dragging, over the fields, the thorny branches with weight over them for covering seeds the sown on dry lands.
• It is better to start planting from ‘Sani moolai’ (north east) of the field to get higher yields.
• It is better to perform sowing and planting operations during evening hours.