eChapters

Family: Chenopodiaceae

Flowering: November-December

Fruiting: January-March

Botanical description: The leaves of the plant are alternate, lower most and middle one is long petioled, ovate-oblong, obtuse or acute, entire or dentate and higher one is small. Flowers are dioecious. Male flowers in arranged in spicate clusters combined into a leafy terminal panicle and female flower in axillary clusters. Ovary enclosed by tepal like bracts that developed into a globose or pyramidal, 2-4 spined structure in fruiting.

Family: Talinaceae

Flowering: September-October

Fruiting: November-December

Botanical description: The plan is an erect, stout, fleshy herb, growing up to 0.5-1 m in height. Leaves are elliptic to obovate, 5-15 cm long, 1.5-5 cm wide, tip pointed to tapering. The flowers are borne in 2-5-branched, raceme like clusters, 3-20 cm long with a stalk about 8-11 mm long. Petals are pink, obovate, up to 1 cm long. Capsules are pale yellow, ellipsoid, 6-7 mm long. Then plant flowers and bears fruits during September-December.

Family: Apiaceae

Flowering: November-January

Fruiting: February-April

Botanical description: The plant is an erect, freely branching annual herb with finely dissected, lacy, blue-green leaves. The leaves are about 1 ft long and divided pinnately three or four times into thread like segments each about 1 in long. The dill plant grows about 3-5 ft tall.

Family: Aizoaceae

Flowering: July-September

Fruiting: October-December

Botanical description: The plant is a succulent herb with prostrate forked branches, growing up to 20-45 cm long. Stems are prostrate or rising, somewhat succulent, up to 50 cm long or more, smooth or sparsely velvety. Leaves are flat, elliptic to obovate, 1-2 cm long, 0.4-2 cm wide, margins entire, tip blunt with rounded base. Leaf stalks are 0.5-2.5 cm long, expanded into a sheath joined with leaf base to form a cup. Flowers are pinkish or white in colour, borne solitary, stalkless, largely hidden in leaf axils. Capsule with a lower scarious or membranous portion and an upper brown. Seeds are black in colour with muricate concentric lines.

Family: Fabaceae

Flowering: September-October

Fruiting: November-January

Botanical description: Thye plant is a small diffused herb, with erect to creeping habit. Leaflets are 1-4 cm long, 8-35 mm broad, obovate to oblong-wedge-shaped, tip rounded to notched. The flowers of the plant yellow in colour, bloom in 8-20-flowered clusters, with a stalks 3 mm long and sepals nearly equal, shorter than or as long as the tube. The fruit is 1-2 cm long, 2-3 mm broad, linear, sharp tipped, curved and 4-8-seeded.

Family: Fabaceae

Flowering: December-January

Fruiting: February-March

Botanical description: The plant is an erect, annual and strongly smelling herb growing up to 10-50 cm in height. The Leaves are trifoliate with leaflets 1-3 cm long, 5-15 mm broad, obovate to inverted-lanceo shaped. Flowers are cream or yellowish-white, in colour, 1-2 together in leaf axils and 1.2-1.8 cm long. Pods are oblong, straight or falcate with age, 7.5-10 cm long with a long beak and 20 seeded.

Family: Fabaceae

Flowering: December-January

Fruiting: February-March

Botanical description: The plant is a scrambling and climbing herb, with stems almost hairless, up to 3 ft tall. The leaves are compound with 5-6 pairs of opposite leaflets and 1 terminal tendril. Leaflets are narrow, linear, 2.5-3.0 cm long, 2-3 mm wide. Flowers are borne singly or in pairs on short stalks arising at the base of the leaves, blue to purple in colour, large, up to 2 cm long. Seed pods are mainly black, linear, 4-6 mm broad, containing 10-12 round or angulated small seeds. The plant flowers and bears fruits during December-March.

Family : Rutaceae

Flowering: March-April

Fruiting: (Next Year) April-June

Botanical Description: The plant is a medium sized tree with spines of 1-2 cm long. The leaf is composed of three leaflets. The leaflets are oval, elliptic with 2.5-6.5 cm petiole, terminal one is larger. Flowers of the tree are white or greenish-white. The fruits are ovoid, hard and about 5-7.5 cm in diameter. The flowers appear during March-April and the tree bears fruits towards October, ripening in April.

Family : Moraceae

Flowering: December-January

Fruiting: June-July

Botanical Description: The plant is an evergreen tree that grows up to 20-30 meter tall and 80-200 cm in diameter with evergreen, alternate, glossy and leathery leaves reaching up to 9 inch long. Leaves are oval on mature trees. All parts of the plant contain sticky and white latex. Inflorescence is solitary, borne axillary on special lateral short leafy shoots arising from older branches. Fruits are large arising from the tree trunk and weighting about 10-50 kg. the exterior of the fruit is green or yellow when riped and composed of numerous hard, cone like points attached to a thick and rubbery, pale yellow or whitish wall.

Family : Oxalidaceae

Flowering: July-September

Fruiting: October-December

Botanical Description: The plant is a small evergreen tropical tree that grows upto 25 feet in height. The compound leaves are soft, medium green, spirally arranged around the branches in an alternate fashion. The leaflets are sensitive to light and fold inward at night. The flowers are small and bell shaped, with five petals that have whitish edges. The fruit is fleshy, have a thin and waxy skin, five lobbed, ovate to ellipsoid with attractive yellow-orange in colour.

Family : Arecaceae

Flowering: February - March

Fruiting April - August

Botanical Description: The plant is a large tree and grows upto 30-40m. in height. The trunk may have a circumference of 1.7 m at the base. The leaves are palmate, leathery, gray green and 1-3 m in wide with folded along at the midrib. Flowers are 90-150 cm long and branched. Fruits are ovoid, 15-20 cm in diameter with fibrous and fleshy mesocarp.

Family : Cucurbitaceae

Flowering & Fruiting: Most part of the year

Botanical Description: The plant is a climbing herb with angular stem and long tuberous root. The leaves are classified as palmately simple with five lobes while the shape varies from the heart to pentagon form. The size of the leaves is approximately 5-10 cm in width and length. The tendrils are long, elastic with coil-like springy character that can wrap around the host to the entire length. The flower is large and white about 4 cm in diameter and contains five long tubular petals. The fruit is oblong, narrowed apically or at both ends. The raw fruit is green in color and turns bright red when ripened. The seeds of the plant are oblong and compressed.

Family : Cucurbitaceae

Flowering: September-October

Fruiting: October-November

Botanical Description: The plant is an procumbent annual climber growing to 1.5m. The leaves are oval to kidney shaped with five to seven shallow lobes. Plants produce trailing vines and yellow flowers similar to cucumbers, but flowers may be male, female, or perfect. Fruit is spherical or ovoid, large, and can reach the size of a football, although it is generally more flattened. It is striped green or pale green in colour, ultimately turning yellow.

Family : Dilleniaceae

Flowering: May- June

Fruiting: September-February

Botanical Description: The plant is a moderate sized evergreen tree growing up to 15m tall. The leaves are deep green in colour, oblong to lanceolate and 15-36 cm in long. The flowers are white, large, up to 5 inches across. The fruit is rounded, 5-12 cm in diameter aggregate of 15 carpels with each carpel containing 5 seeds embedded in the pulp.

Family : Dioscoreaceae

Flowering & Fruiting: Throughout the year

Botanical description: The plant is a vigorous, perennial, climbing plant, producing annual stems up to 15 metres long from a very large tuberous rootstock. Tubers of the plant are one to several, polymorphic, variously branched or lobed and hairy with small rootlets. The stems scramble over the ground, or twine into the surrounding vegetation. The stem is quadrangular, winged, and twines right-handed. Leaves are opposite, 7-18 x 4-10 cm, broadly ovate, base cordate with acuminate apex. Flowers are laxly arranged, sessile with 1-1.5 mm long and ovate bracts and fleshy tepals.

Family : Dioscoreaceae

Flowering & Fruiting: September-October

Botanical description: Aerial yam is a glabrous-leafed, non-spiny, perennial climbing plant producing annual stems up to 10 metres long from a woody, tuberous rootstock. These stems scramble over the ground, or twine into the surrounding vegetation. The stems twine left-handed and produce aerial axillary bulbils. The plant produces tubers; however the bulbils which grow at the base of its leaves are more important food products. They are about the size of potatoes (hence the name air potato) weighing from 0.5 to 2 kg. The flowers are whitish or pinkish in colour.

Family : Dioscoreaceae

Flowering & Fruiting: August-October

Botanical description: Stem twining to the left, terete, tomentose. Leaves 3-foliolate, palmately divided into 3-5 subequal leaflets, broadly ovate, oblique at base, abruptly acuminate; petiole 15-18 cm long. Spikes are 30 cm long, densely tomentose, distantly flowered fascicles at nodes on long peduncle. Female flowers sessile; bracts 4 mm long, ovate; tepals 2 x 1 mm, oblong, acute, hairy. Capsule 25 x 15 mm, oblong, tomentose. Male flowers not seen.

Family : Dioscoreaceae

Flowering & Fruiting: July-December

Botanical description: The plant is a perennial climbing plant. Tubers are irregular, usually long ovoid, transverse section white when fresh, becoming brown. Roots fibrous. Leaves are compound, palmately divided into 3-5 leaflets, and alternately arranged on the twining stems. Male flowers are nearly stalkless and Female spikes are simple or branched. Capsules are thinly leathery, sparsely hairy and turns black at maturity.

Family : Ebenaceae

Flowering: March-April

Fruiting: March-April (Next Year)

Botanical Description: The plant is an evergreen tree with a spreading crown. It can grow up to 37 m tall, with a trunk girth of 2 m. The bark is black, smooth, and the inner bark turns bluish on exposure to sunlight. Leaves are oblong and glossy. The male flowers are formed in 3-5 flowered cymes in leaf axils. Female flowers are solitary. Fruits are round, up to 3.5 cm in diameter, yellow when ripe with a juicy pulp.

Family : Ebenaceae

Flowering: April-May

Fruiting: (Next Year) March-April

Botanical Description: The plant is a medium-sized tree growing up to 25 m, height and 1.9 m girth. The bark is black in colour, peeling in rectangular scales, which is an identifying feature. The leaves are eliptic-oblong, opposite or alternate, leathery, up to 35 cm long, velvety on both sides when young, becoming smooth above when fully grown. Male flowers are mauve in colour, sessile or nearly sessile in short peduncles, mostly 3-flowered. Female flowers mauve, mostly extra-axillary or sometimes solitary, axillary, opposite to each other, larger than the male flowers. Fruits olive green in colour, ovoid or globose 3-4 cm across, 1-8 seeded berries. Seeds are compressed, oblong and shiny.

Family : Moraceae

Flowering: Round the year

Fruiting April - June

Botanical Description: The tree is very large, growing up to 30 m tall, with many aerial roots that develop in to new trunks, so that the tree goes on spreading laterally. Indefinitely a single tree can cover a very wide area. The leaves are leathery, entire, ovate or elliptic, which grow up to 20-30 cm long with prominent lateral veins. The fruits are 1 to 2 cm in diameter, rounded in shape, without stalks arranged in pairs at leaf axils and it changes to bright red colour when ripens. The plant flowers round the year and bears fruits during April-June.

Family : Moraceae

Flowering: March-June

Fruiting June-July

Botanical Description: It is a large sized tree with few short areal roots. Leaves are ovate or elliptic with 7-20×3.5-9 cm in size. The most distinctive aspect of this tree is the red, furry figs in short clusters, that grows directly out of the trunk of tree. The figs do carry hundred of flowers in it.

Family : Rutaceae

Flowering: February-April

Fruiting: November-January

Botanical Description: The plant is an erect, slow-growing tree with a few upward-reaching branches. The bark is ridged, fissured and scaly with sharp spines. The leaves are alternate, 3 to 5 in long, dark-green in colour, leathery, often minutely toothed, blunt or notched at the apex, are dotted with oil glands and slightly lemon-scented when crushed. Flowers are greenish or reddish in colour, 1/2in across, are borne in small, loose, terminal or lateral panicles. The tree is mostly known for its hard woody fruit, size of a tennis ball, round to oval in shape. The pulp is brown, odorous, resinous, acid or sweetish, with numerous small, white seeds scattered through it.

Family : Sapotaceae

Flowering: February-April

Fruiting: May-July

Botanical Description: The plant is a large or moderate-sized tree, smooth and brown bark with pubescent or tomentose branchlets. The leaves are clustered near the ends of the branches, elliptic, oblong or ovate and acuminate. The flowers are cream coloured, fleshy, on rusty tomentose pedicel and clustered at the end of the usually leafless branches. The fruits are fleshy, green berries, quite large and containing from one to four shiny, brown seeds.

Family : Sapotaceae

Flowering: November-January

Fruiting: March-June

Botanical Description: The plant is a tree growing up to 3-12 m tall, with gray bark and smooth branchlets. The leaves are alternately arranged often closely clustered towards the end of branchlets, obovate to obovate-elliptic leaf blade with 0.8-2 cm leaf-stalks. Flowers are white or light yellow in colour, about 4 mm in size and arise in fascicles in leaf axils. Berry is oblong to ellipsoid, 1- 2 seeded and yellow when ripe.

Family : Cucurbitaceae

Flowering: August-September

Fruiting: September-November

Botanical Description: The plant is a large perennial climber which grows up to 3-5 m. The leaves are simple, alternately arranged, ovate and 3-5 lobed. The flowers are yellow, 4-6 cm across, solitary on axillary stalks. Fruit is an ellipsoid, 3-6 cm long, densely covered with soft spines.

Family : Musaceae

Flowering & Fruiting: Most parts of the year

Botanical description: Banana is a tropical small size tree, with large leaves which overlapping bases from the trunk. The leaves are oblong and 1.2-1.5 m in length. The stem reaches a height of about 10-30 feet. Flower develops from the centre of the crown. Only female flowers develop into a banana fruit that varies in length from 4 to12 inches. Each banana plant bears fruits only once. The plant bears flowers and fruits in most parts of the year.

Family: Nelumbonaceae

Flowering & Fruiting: July-December

Botanical description: It is a perennial aquatic plant, growing from a tuberous rootstock lying in mud at the bottom of water bodies, lakes and ponds. The plant produces large leaves which float on the surface of the water. Leaves are large, simple, glabrous, solitary, beset with scattered hard minute papillae and rounded in shape and covered with a network of microscopic hairs. Flowers are large, pink or white in colour with expanding and emerging above water. Fruit is 1-2 cm across with flat-topped seed pod divided into compartments. Seeds globose, 1 mm across and brown in colour

Family : Nymphaeaceae

Flowering: Throughout year

Fruiting: Throughout year

Botanical description: It is an aquatic perennial herb, having erect perennial root stocks that anchor it to the mud in the bottom of the water bodies. Leaves vary from being elliptic-oval to almost circular 15-26 cm across, fine hairs on upper side and always remain at floating stage. Flowers are mostly white, occasionally pink or red reaching up to 15 cm in diameter.

Family : Arecaceae

Flowering: February-March

Fruiting: April-May

Botanical Description: The plant is a moderate sized dioecious tree which grows up to 4-10 m. in height and 30 cm diameter with a large crown and rough trunk covered with persistent leaf bases. The leaves are 3 m. long, gently recurved on 1 m petioles with spines near the base. The leaf crown grows to 5 m wide and 7-10 m tall containing up to 100 leaves. The inflorescence grows upto 1 m with white flowers. The single seeded fruit ripens to orange-yellow.

Family : Phyllanthaceae

Flowering: May-June

Fruiting: June-September

Botanical Description: The plant is a small deciduous tree reaching about 25-30 ft in height. Leaves are compound, 14-25 inches long, crowded at the ends of the branches leaflets 2-3.5 inches long, alternately arranged along the rachis, ovate or obliquely ovate, acute with rounded or wedge-shaped base. Flowers are very minute, in short dense spike-like clusters arising from nodules along the branches. Fruit is pendulous, in small clusters from the branches, round or slightly flattened at the poles, with shallow or deep ribs (usually 5) 0.75 inch across.

Family : Phyllanthaceae

Flowering: March-May

Fruiting: November-February

Botanical Description: The plant is a small to medium sized deciduous tree, reaching 8 to 18 m in height. It is known for its edible fruits of the same name. The tree has crooked trunk and spreading branches. The leaves are simple, nearly stalkless and closely set along slender branchlets. The leaves are often mistaken for leaflets of pinnate leaves. The flowers are small, greenish-yellow or pinkish, having six segments, but no real petals. The fruit is nearly spherical, light greenish yellow, quite smooth and hard on appearance, with 6 vertical stripes or furrows.

Family : Mimosaceae

Flowering: January-March

Fruiting: April-June

Botanical Description: The plant is a large, nearly evergreen perennial tree that grows up to 20 m or more in height. It has a broad crown, up to 30 m across, and a short trunk, up to 1 m thick. Leaves are deciduous but foliage is persistent, as the new leaves appear while the old ones are being shed, so that the tree looks like an evergreen. Flowers yellowish-white in colour and are borne in small spherical glomerules of about 1 cm in diameter, forming short axillary panicles of 5-30 cm in length. Pods are greenish-brown to red or pinkish, rather thin with 10-15 cm long with irregular shape and flattened. There are about 10 seeds per pod, shining black in a white pulpy aril.

Family : Myrtaceae

Flowering: April-May

Fruiting: July-August

Botanical description: The plant is an evergreen tropical tree, 50 to 100 ft. tall, with oblong opposite leaves that are smooth, glossy and having a terpentine smell. It has fragrant white flowers in branched clusters at stem tips and purplish-black oval edible berries. The leaves are antibacterial, and are used for strengthning the teeth and gums. The fruit is ellipsoid or oblong, variable in size and shape, usually up to 2.5 cm long, black, shining and juicy when fully ripe. Seeds always one, with thick rounded fleshy cotyledons, closely appressed on their inner faces.

Family : Lythraceae

Flowering: August-September

Fruiting: November-December

Botanical description: The water chestnut is an annual aquatic herb with a rosette of floating leaves and submerged, anchored into the mud by very fine roots. It has two types of leaves, finely divided, feather-like submerged leaves borne along the length of the stem, and undivided floating leaves borne in a rosette at the water’s surface. The floating leaves have saw-tooth edges and are ovoid or triangular in shape, 2-3 cm long, on inflated leaf-stalks 5-9 cm long, which provide added buoyancy for the leafy portion. Flowers are white in colour, with Four petals and are borne for a long period. The fruit is a nut with barbed spines. Seeds can remain viable up to 12 years, although most germinate within the first two years.

Family : Rhamnaceae

Flowering: July-September

Fruiting: October-January

Botanical Description: Jackal Jujube is a very thorny straggling shrub with rusty-velvety young branches with paired thorns. Thorns are, one straight and the other recurved. Alternately arranged simple leaves are ovate to ovatelancelike, often oblique, with three prominent nerves and numerous transverse nervules. Tiny green flowers are borne in nearly stalkless velvety cymes in leaf axils. Fruits are spherical or obovoid drupes, black, shining, seeds woody.

Histology

Cell: Structural and functional unit of an organism

M. Schleiden & Theodor Schwan – proposed cell theory

- All living being made up of cell

Tissue: Group of cell and their extracellular product organized to perform a particular function

M. Malpighii – Father of histology

Partitioning of Energy in Livestock

Energy Partitioning

Partitioning of energy involves loss and distribution of feed energy into different body functions.

Gross energy is calculated from the heat produced when a sample of feed or feces is subjected to complete combustion in a bomb calorimeter under a pressurized oxygen atmosphere.

Apparent digestible energy is the difference between the gross energy of the feed consumed and the gross energy of the feces excreted. Digestion is accompanied by the production of gases in both fore- and hindgut and by the urinary excretion of metabolites.

Metabolizable energy is the difference between digestible energy and energy lost to gases and urine. Metabolic processes and physical activity produce heat (heat of production) which may warm the animal in cold weather. In hot weather, energy may be required to expel excess heat of production, through panting and increased respiratory rate.

Net energy is the remaining energy available for maintenance, reproduction and production. The diagram on the left illustrates energy partitioning for a particular cow near the end of her lactation. Energetic efficiency of this cow is about 29%, expressed as output in the form of milk, gain and fetal growth divided by gross energy input. Although their energy requirements are significantly greater, higher producing cows are also more energetically efficient.

1665 Robert Hooke had successfully invented the microscope. Because of this discovery, Robert Hooke was the first one to have a close look of a cell appears to be. His description of these cells was published in Micrographia. However, the cell walls observed by Hooke gave no indication of the nucleus and other organelles found in most living cells.

1674 Anton van Leeuwenhoek witnessed a live cell (plant) under a microscope.

1775 Antoine Lavoisier first proposed a mechanism for photosynthesis, a process wherein plants plants take in carbon dioxide and release oxygen. Lavoisier was also the first to investigate cell respiration in animals.

1777-83 Chemistry became dominated by the phlogiston theory, or the hypothetical principle of fire wherein all the combustible material was part composed. In this principle, burning (oxidation) was caused by liberating phlogiston, with ash as the dephlogistigated substance.

1836 The proponent of the cell theory in Biology, Theodore Schwann, proposed that the process of fermentation is solely limited to living yeast cells in 1836. Liebig did not agree to this and instead, he proposed another alternative theory of fermentation.

1856 Louis Pasteur opposed Liebig’s chemical theory. In his experiment, he showed that fermentation depends highly on the physiological functions that occur in bacteria and in living yeast cells. This work of Pasteur in 1856 received general recognition.

1860s The view on the chemistry of life highly different from the chemistry of nonliving things. During this period, the view is that the gelatinous and homogenous form of matter in organisms or more commonly known as the protoplasm carries out all the intracellular processes. These include respiration, biosynthesis of molecules, and the breakdown of matter.

Animal Biotechnology

Biotechnology is defined as “the application of biological organisms, systems or processes to manufacturing and service industries” (Coombs, 1984).

It is also defined as “the application of scientific and engineering principles to the processing of materials by biological agents to produce goods and services” (Coleman, 1986).

Animalbiotechnologyis the application of scientific and engineeringprinciples to the processing or production of materials by animals to provide goods and services to human kind.

Farming System of India

Based on how income is derived from a farming enterprise: Specialized farming, diversified farming and mixed farming.

Based on mode of ownership and organization of farms: Individually owned, co-operative farming and collective farming

Based on scale of operations: Small scale farming and Large scale farming.

Embry Transfer Technology (ETT)

Definition: The process of removing one or more embryos from the reproductive tract of a donor female and transferring them to one or more recipient females.

General Terminologies in Livestock Production

Meat is considered as well balanced diet because it is good source of macro and micro nutrients.

Macronutrients-required in large quantity in body i.e proteins, fat and carbohydrates.

Micronutrients-required in lesser quantity by human body i.e vitamins, minerals and fibers.

Organ meat like liver is a good source of glycogen, viatm-A, B1 and nicotinic acid.

Fresh meat is unprocessed.

Raw meat is a fresh meat undergone chilling and freezing.

Refrigeration and rapid cooling can delay the onset of rigor mortis

Foot-and-Mouth Disease

Loeffler and Frosch in 1897. Apthovirus of Picornaviridae. Strain O, A, C, Asia-1, SAT-1, 2, 3.

Cattle as Indicator host, Pig as amplifier, Sheep as maintenance host.

Musculature of heart in calves will have striped appearance termed as TIGER HEART.

Panting is common feature or sequel following FMD due to disturb endocrine function.

Preferred cell line for virus isolation in BHK-21.

Our general environment is loaded with tiny invisible living things that influence us consistently. Microbiology is a specialized area of science that deals with living things typicallytoo little to be seen without magnification. Suchmicroscopic life forms are collectively referred to as microorganisms. Microbial kingdom incorporates the study of bacteria, rickettsiae, viruses, fungi, algae and protozo a. Virology the study of viruses, mycology study of fungi and protozoology deals with protozoa.Credit for prologue to microbial world goes to ‘Antony van Leeuwenhoek’ and to vistas of microbial activities to ‘Louis Pasteur’ and ‘Robert Koch’. This period is reffered as the “Golden Era” of microbiology on account of the significant discoveries viz: microbial fermentations, discovery of various disease-causing agents, microbes’ cultivations, differences in metabolic activities, development of attenuated strains and their use as immunoprophylactic agents. The techniques used to study bacteria and different microorganisms embody direct microscopic examination, cultivation, biochemical tests, animal inoculation, serological reactivity and recent molecular biological techniques.Definitive evidence for the cause of a given infection is established by Koch that are still used to this day to definitively prove that a microorganism causes a particular disease. Koch’s four postulates are:

Parasite- The word parasite is derived from the Greek. Para- beside and sitos- food. Parasites are those living organism which reside on or inside the body of some other species of living organism.

Host- Those organisms which provide food shelter and conducive environment to parasite for their growth, development and reproduction. e.g. Tape worm in small intestine of man and animals.

Disease = dis + aise (see + ease) old French word

Transmission- Movement of biological agents (Virus, Bacteria, Rickettsial, Fungi & Parasites) from one place to another place via vector or vehicle/ tools

Vector- Latin word- bearer

Vector is a living organism (usually an arthropod) which transfers infective forms of a parasite from one host to the other.

Chemotherapy

Chemotherapy is branch of pharmacology that deals with study of chemical substance intended to kills or inhibits the growth of invading microorganism or foreign cell without harm to host cells. Paul Ehrlich coined the term chemotherapy and is known as father of chemotherapy. Gerhard Johannes Paul Domagk discovered sulphonamide (sulfonamidochrysoidine). First commercially available sulphonamide marketed in the form of Prontosil dye, for which he received the 1939 Nobel Prize in Physiology or Medicine. SelmanAbraham Waksman discover streptomycin and several other antibiotics from soil actinomycetes and actinomycetes is called treasurer house of antibiotics.

α-lactam antibiotics- includes penicillins, cephalosporins, carbapenems, monobectum and beta-lactamase inhibitors. It inhibits bacterial cell wall synthesis due to inhibition of transpeptidation reaction thus inhibits peptidoglycan synthesis. Penicillins contain 6-animopenicillanic acid (((lactam ring + thiazolidine ring) eg. natural penicillins, beta-lactamase-resistant agents, aminopenicillins, carboxypenicillins, and ureidopenicillins. Discovery of penicillin was done by Alexender fleming from penicillium mold in 1928 from Penicillium notatum. Now a day’s Penicillium chrysogenum mold is a major source of penicillin production. Benzathine penicillin G is a repository salt of penicillin. Probenicid competitively inhibit renal tubular secretion of penicillin and increase the half- life of penicillin. Procaine penicillin G should not administer by i.v. route due to adversely affect the cardiac conducting system. Beta-lactamses inhibitors are calvulenic acid (Streptomyces clavuligerus), salbactum, tazobactam. They are called suicidal /progressive inhibitors. Main adverse effect associate with penicillin is immediate type of hypersensitivity reaction due to Antigen+ IgE antibody reaction.

Veterinary physiology deals with the study of normal functions of animal systems. It includes the study of how animals work and the physical and chemical processes that occur within animals. The examples of various biological processes in animals include gas exchange, blood and circulation, osmoregulation, digestion, nervous and muscle systems, respiration, growth, reproduction, endocrine function and how animals behave and function in different environmental conditions. This also includes the possible manipulation of the reproductive processes by means of hormone manipulation techniques for more efficient livestock and poultry production.

Zoonoses

Zoonoses are those diseases and infections which are transmitted between vertebrate animals and humans under natural conditions. The emergence of a pathogen into a new host species is called disease invasion or “disease emergence”.

Anthrax is a notifiable disease and primarily occurs in herbivores but it is a type of bio-terrorism agent and called as malignant pustule, malignant edema, woolsorters disease, ragpickers disease, maladi charbon, splenic fever etc. Causative agent is Bacillus anthracis contains vegetative spore and lethal dose is 2,500 to 55,000 spores.

Brucellosis is one of the world’s most widespread zoonoses caused by the genus Brucella. In human it is called Malta fever, Undulant fever, Mediterranean fever, Rock Fever of Gibraltar and Gastric Fever while in animals it is called Bang’s disease, Enzootic abortion, Epizootic abortion, Slinking of calves, Ram epididymitis and Contagious abortion etc. it is also called occupational disease.

Leptospirosis is a disease of animal sand humanbeings caused by genus Leptospira and called as Weil’s syndrome, Canicola fever, Canefield fever, 7-day fever, Rat Catcher’s Yellows, Autumn fever, black jaundice). Fletcher’s EMJH media is used to culture the organism.