eChapters

Borreliae, which are longer and wider than other spirochaetes, have a similar helical shape. In addition to a linear chromosome, which is unique among bacteria, borreliae possess linear and circular plasmids. Although these spirochaetes can cause disease in animals and humans, subclinical infections are also common. Borreliae are transmitted by arthropod vectors.
Usual Habitat
Borreliae are obligate parasites in a variety of vertebrate hosts. Although these organisms persist in the environment for short periods, they depend on vertebrate reservoir hosts and arthropod vectors for long-term survival.
Differentiation of Borrelia Species
Borreliae can be differentiated from other spirochaetes by their morphology, by the low guanine and cytosine content of their genomic DNA and by ecological, cultural and biochemical characteristics. Identification of Borrelia species depends mainly on genetic analysis. At least nine genospecies or genomic groups of B.burgdorferi sensulato, have been identified using DNA-DNA hybridization, 16s rRNA sequencing and other molecular techniques.
Clinical Infections
The species of particular veterinary importance are B. burgdorferi sensu lato, the cause of Lyme disease in animals and humans, and B. anserina which causes avian borreliosis. The significance of two other species, B.theileri andB.coriaceae, as animal pathogens, is uncertain.
Lyme Disease
This condition, also known as Lyme borreliosis, was first identified in 1975 following investigation of a cluster of arthritis cases in children near the town of Old Lyme, Connecticut. The causative agent, a spirochaete, was named Borrelia burgdorferi.

During photochemical reactions of photosynthesis, takings place in the chloroplast lamellas system, electrons flow from water to NADP resulting in generation of a powerful reductant NADPH. Simultaneously, water is oxidised and O₂ oxygen is released. This reaction is known as Hills reaction. The rate of production of NADPH and ATP in the photochemical reaction is directly associated with the oxidation of water the sole electron donor. So the photochemical efficiency can be measured by measuring the rate of oxygen evolution.

Since oxygen evolution is a good reflection of the photochemical activity of chloroplast, determination of the rate of oxygen evolution can be conveniently adopted to estimate the photochemical activities. Normally oxygen evolution as a measure of photochemical reactions, is measured either in isolated chloroplasts or in the excised leaf discs using an oxygen electrode. An oxygen electrode is a special form of chemical electrode cell in which the current generated is proportional to the activity of oxygen present. This equipment is widely used for determining the amount of oxygen liberated during the photochemical reaction either in isolated chloroplasts or in leaf bits. Though oxygen electrode is the most frequently used technique to determine the rate of oxygen evolution, there are a few indirect methods to quantify the amount of oxygen evolved.

In photosynthesising tissues or in isolated chloroplasts, the rate of oxygen liberation can be determined by using appropriate artificial electron acceptors and donors (artificial electron donor and acceptors are compounds which can substitute the physiological electron transport carriers and helps in understanding the electron transport mechanisms and ATP synthesis). Oxygen is a powerful oxidizing agent which means it readily oxidizes another compound and itself gets reduced to water. This property can be effectively used in qualitative and quantitative determination of oxygen evolution in green leaves exposed to light. The oxygen that is liberated during the photochemical reactions can be determined by using an appropriate organic substance which can be readily oxidized by oxygen.

Aim

To evaluate the performance of the gravity separator.

Materials required

Specific gravity separator

Weighing balance

Sample divider

Stopwatch

Grains

Manifests its action mainly in chronic rheumatic, arthritic and paralytic affections, indicated by the tearing, drawing pains in the muscular and fibrous tissues, with deformities about the joints; progressive loss of muscular strength, tendinous contractures. Broken down senile. In catarrhal affections of the air passages, seems to choose preferably dark - complexioned and rigid fibered persons. Restlessness at night, with tearing pains in joints and bones, and faint - like sinking of strength. This weakness progresses until we have gradually appearing paralysis. Local paralysis, vocal cords, muscles of deglutition, of tongue, eyelids, face, bladder and extremities. Children are slow to walk. The skin of Causticum person is of a dirty white sallow, with warts, especially on the face. Emaciations due to disease, worry etc. Burning, rawness and soreness are characteristic.

Causticum is indicated in the treatment of chronic rheumatism and paralysis accompanying it. Here, Causticum ranks with Rhus Tox and Sulphur.

1.0. Objectives

• To impart knowledge about voices
• To differentiate between active and passive voices
• To escribe rules of transferring from active to passive and Vice versa
• To provide the knowledge of making communication and writing more effective with the inclusion of voice

Active Voice is used when the subject of the sentence is prime and emphasis is on that.

E.g. Teacher elected him CR of the class.

To identify parasitic infections, it is essential to examine excretory- secretory products (ESPs), viz., faeces, urine, sputum and nasal discharges as examination of such material is essential for clinical diagnosis. It is extremely rare to get an animal completely free from parasites and at the same time all animals may not show signs of disease. Most of the important helminths and coccidia inhabit intestinal tract. Therefore, clinical diagnosis of gut dwelling helminths and coccidian depends mostly on identification of ova/oocyst in faecal samples

Part A

Counting of Seeds in a Seed Lot

Counting of seeds is essential in order to estimate the number of seeds required for planting in a nursery or direct sowing or where seeds are valuable and are sold or purchased on number basis. However, in practice, it is difficult to count the seeds in the entire lot. Alternately, the whole lot is weighed accurately. From the whole lot, 5-6 small seed samples of 100 g each are randomly selected. The number of seeds in these samples are counted. The average of these samples is then applied to the whole seed lot in order to calculate the number of seeds.

Poultry is one of the fastest-growing industries within agriculture and allied sectors worldwide. This rapid expansion results in the generation of substantial amounts of waste, including poultry manure, dead birds, hatchery wastes, and abattoir wastes. Proper treatment and scientific disposal of these wastes are crucial to avoid significant threats to both avian health and human safety. Unmanaged poultry wastes can lead to the spread of diseases among birds, resulting in considerable economic losses due to mortality and decreased productivity. Additionally, improper waste disposal can contribute to soil and groundwater pollution. Globally, an estimated 400 million chickens are processed weekly, generating a vast amount of waste. For instance, a broiler produces about 0.09 kg of manure daily, while a laying hen produces around 0.18 kg. Effective management of poultry waste requires a comprehensive understanding of its composition and the various physical, chemical, and microbiological processes that influence the fate of potential pollutants, particularly when the waste is applied to land.

Medicinal and Aromatic Plants (MAPs) are vital components of traditional medicine, perfumery, and cosmetics. To ensure the quality and sustainability of these plants, it is essential to adopt Good Collection and Agricultural Practices (GCAP). GCAP encompasses a set of guidelines and practices that promote the responsible cultivation, collection, and harvesting of MAPs.
Principles of GCAP
Sustainability: Ensure that the cultivation and collection of MAPs are sustainable and do not harm the environment or deplete natural resources. Quality: Maintain the highest quality standards for MAPs, from cultivation to harvesting and processing.
Traceability: Ensure that MAPs are traceable from the farm to the consumer, to guarantee authenticity and quality.
Fair Trade: Promote fair trade practices, ensuring that farmers and collectors receive fair prices for their products.
Environmental Stewardship: Protect biodiversity, conserve water, and minimize waste and pollution.
Agricultural Practices
Soil Conservation: Implement soil conservation techniques, such as contour farming and mulching, to prevent soil erosion.

Drying and dehydration are interrelated terms. Drying generally refers to the method of removal of moisture from the food under natural conditions such as sunlight and wind for example open sun drying, shade drying etc. Whereas, dehydration refers to a process of removal of moisture by application of artificial heat under controlled conditions of temperature and airflow. In this case single layer of fruit and vegetables, either whole or sliced after primary pretreatments is spread on trays which are placed inside the dehydrator or in the open sun for drying. In the dehydrator, the initial temperature is generally kept at 43oC which is then gradually increased to 66-71oC for fruits and 60- 66oC for vegetables. Dried grapes (raisins and monucca), apricots, dates, apple rings/cubes, Morchella (Guchhi), bael, aonla, fig, green peas, cauliflower, cabbage, onion, garlic etc are commercial products prepared by using drying.
Procedure for drying: Drying generally involves three stages: pre-drying treatments or pre-treatments, drying of commodity and post-drying operations such as handling, packaging and storage. The flow sheet for drying of fruit and vegetables is shown in Figure 1 and details of pretreatments for drying fruits and vegetables are shown in Table 1&2 respectively.

Points to ponder
• Minerals are naturally formed substances in earth. They are typically solid, inorganic, have crystal structure formed by geological processesnaturally. They may consist of single chemical element or a  compound more usually. They are identified by these characteristics: colour, streak, hardness, hardness, luster, diaphaneity, specific gravity, cleavage, fracture, magnetism, solubility.
• Colour in minerals: Its result of brain’s interpretation of the dominant wavelength of light. “Minerals are coloured, because certain wavelengths of incident light are absorbed and the colour we perceive is produced by the remaining wavelengths that were not absorbed”. Some minerals are colourless.
• The mineral is an essential element which has a metabolic role in the body and if not provided in the diet, can cause deficiency symptoms, which can be prevented by adding that element to the diet. Animal body contains about 3% minerals, which are constant constituents of animal tissue.
• Classification is based on the amount required by the animals. Major elements are required in large amounts and are expressed in % age, whereas minor or trace elements are required in small amounts and hence expressed in parts per million (ppm) or parts per billion (ppb) or even parts per trillion (ppt) …. so on and so forth, depending on discovery of new trace element.
• They have following significant role in the cattle: health, production, reproduction, defense.

The word CHAMOMILA is derived from CHAMAEMELUM and MATRICARIA from MATRIX means apple on the ground, because the plant grows to the ground and has an odour like that of apples. It has been used since long as a domestic remedy by the name chamomile.

The chief guiding symptoms belong to the mental and emotion group, which lead to this remedy in many forms of disease. Especially of frequent employment in diseases of children, where peevishness, restlessness, and colic give the needful indications. A disposition that is mild, calm and gentle; sluggish and constipated bowels contra-indicate Chamomilla.

Chamomilla is sensitive, irritable, thirsty, hot, and numb. Oversensitiveness from abuse of coffee and narcotics. Pains unendurable, associated with numbness night-sweats.

The child patient wants to be carried in the arms. His mood is very irritable and snappy. He does not know what he wants. He needs a dose of Chamomilla. Even in elders, the patient is cross, ugly, spiteful and snappish. He cannot bear others. He cannot bear pain. He wants things but on getting them throws them away. He is uncivil.

Introduction

The macadamia nut (Macadamia ternifolia) is a fruit from Australia that was recently introduced into India. The macadamia nut is a unique, world’s finest dessert nut characterized by its creamy colour, delicate flavour and crunchy nature. Having two important species, M. integrifolia and M. tetraphylla where the former one is adapted to a subtropical climate and the latter to temperate regions. Another species, M. ternifolia, produces bitter, inedible nuts. Hawaii is the world’s largest producer, followed by Australia, South Africa, Guatemala and Kenya.

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.

ICAR SCAD Krishi Vigyan Kendra Thoothukudi District, Tamil Nadu, organised a 3 -day SCSP training programme on inland shrimp farming during 21st - 23rd December 2021, sponsered by MANAGE, Hyderabad. SC/ ST communities are given training on sustainable shrimp/prawn culture so as to enable them to take up shrimp culture as a means of self-employment or to get employed in shrimp farms by other farmers, thereby earning a livelihood. The participants were provided with hands-on training on pond preparation, stocking, feeding, water quality management, disease control, harvesting, and post-harvest processing of shrimp. In addition to this, they were also given insights into market trends and opportunities for shrimp farming. The participants were enthusiastic and showed keen interest in learning about the latest shrimp farming techniques and practices.

• All green leafy materials in nature have Mg, because it is the structural component of chlorophyll. Wherever such green colour is there, carotenes would be associated. The colour of carotenes is red, but this
red colour is masked by green colour of chlorophyll. Wherever above green colour is there, vitamin K would also be invariably associated. Therefore Mg, vitamin A and vitamin K would be available by – default or what!! {α, β, ϒ, δ – carotene (s)}. Hence, grazing animals generally would be receiving these nutrients. [we humans may also eat fresh green leafy vegetables {spinach (palak), bathua, methi, coriander (dhania), cabbage, knol – khol, capsicum (bell pepper, Shimla mirch) to get above nutrients]
• Vitamins help regulate body functions, keeping the body healthy and promoting resistance to dis – eases.
• Supplementation of micro – nutrients (vitamins and minerals) as pre – mix, have + ve effects on maintenance, growth, and milk production.
• Biotin, niacin, choline improves milk production in dairy cattle.
• Multivitamin tablet = A to Z0NS may be given (preferably natural sources would always be suggested).
• Vitamin ‘B’ complex, vitamins C, K are very much synthesized by rumen microbes.
Importance of vitamins and their requirements in animal health and production:
Tables 2 & 3

1. Introduction

Gloriosa superba L. (Liliaceae) is a striking tuberous climbing plant with brilliant wavy-edged yellow and red petaled flowers. Glory lilies are grown commercially for a chemical compound, colchicine. The annual foreign exchange through the export of glory lily seeds is estimated to be Rs.100 crores (Alice and Sundravadana, 2012). It is used as anthemirtic, alexiteric and useful in ulcers, piles, abdominal pains and itching. It has abortifacient, anti-pyretic, anti-inflammatory and anti-leprotic properties (Gupta et al., 2005). Leaf blight disease was first noticed in  G.. Superba in West Bengal, India in 2004. The leaf blight disease was observed during June to September. Early symptoms appeared as small, circular to oval, light brownish spots, 2-6 per leaf, scattered at the tip, margin and midrib of the leaves. Subsequently the spots enlarged and usually developed into concentric rings. At an advanced stage, the spots became dark brown to blackish in colour, gradually coalesced and became irregular in shape, then the affected leaf blighted completely. The causal organism was found to be a fungus namely Alternaria alternata (Fr.) Keissler. The pathogen is greatly influenced by weather with the highest disease incidence reported in wet seasons and in areas with relatively high rainfall (Meena et al., 2010). The growth of A. alternata was maximum in pH range of 6-6.5 and temperature range of 25-30°C (Hubballi et al., 2010).

9.1    Temperature
    
9.2    Relative Humidity
    
9.3    Physical Damage
    
9.4    Microbial Load
    
9.5    Packaging
    
9.6    Transportation

Principles to create effects

Balance

It is a visual equilibrium of different garden elements.

Formal Garden : Balance is achieved by positioning plants, other landscape objects at equal distance from a real (or) imaginary plane (or) axis.

Informal Garden : Balancing is mainly a neutralizing effect. (eg.) Opposite colours in the colour wheel, contrasting texture, different numbers, shapes, forms, line and pattern are cleverly employed to neutralize one another.

Proportion

It refers to the share of the different parts (or) components to the whole. It refers to all ingredients being mixed in right measure, not essentially in equal measure.