Poultry farming - class-XII

The different yolk's protein has distinct roles. Phosvitins are important in sequestering calcium, iron and other cations for the developing embryo. Phosvitins are one of the most phosphorylated (10%) proteins in nature, the high concentration of phosphate groups providing efficient metal-binding sites in clusters. Lipovitellins are involved in lipid and metal storage, and contain a heterogeneous mixture of about 16%  noncovalently bound lipid, most being phospholipid. Lipovitellin-1 contains two chains, LV1N and LV1C. Hence, option C is correct.

H5N1 is a subtype of the influenza A virus that causes highly pathogenic avian influenza, commonly known as bird flu.

In Experiment 1-At protein concentration 16% vitamin level 100, the cost of feed is 9.00 and the number of egg produced is 80 per 100 hens

All the statements given above regarding poultry farm management are correct . Poultry farm includes chickens, ducks, turkey and geese. Brooder house are typically wooden movable structures heated enclosure by electric for raising baby poultry. It is crowd free , rainproof and protected against predators . This will led to higher rate of egg production.  The most common type of egg variety used for commercial production are comes from Leghorn which requires a photoperiod of 16 hours for optimum egg production . Reduction in photoperiod leads to reduce egg yield. 

In experiment 1 the protein concentration is controlled or changed. So as to check the effect on cost of feed ration and number of eggs produced. Therefore it an independent variable

Chicken and other poultry products are safe to eat if cooked properly. While cooking poultry to 70 degree celsius , it kills the H5N1 virus which causes bird flu. Therefore, it is recommended to cook meat above 74 degree celsius to kill all food borne pathogens. 

• The Leghorn is a breed of chicken originating in Tuscany, in central Italy. 
• Leghorns are good layers of white eggs, laying an average of 280 per year and sometimes reaching 300–320, with a weight of at least 55 g. 
• White Leghorns have been much used to create highly productive egg-laying hybrids for commercial and industrial operations.
•  Hence, The best layers of chicken are Leghorn.
• So, the correct answer is 'Leghorn'.

Farm eggs are advantageous because they are more nutritious as the chickens in the farm are fed with food sources of a higher quality.

For effective breeding in poultry, healthy and mature birds are required. Six months is generally considered the age of sexual maturity for many fowl breeds.

Eggs are an important and well-balanced source of essential nutrients. Bird eggs consist of a protective eggshell, albumen (egg white), and vitellus (egg yolk). Yolk of egg consists of 50% of water, 9% lecithin, 16% other proteins which includes albumin, provitellin and vitellin and 23% fats, 0.3% carbohydrates and 1.7% minerals. 

• Poultry farming is the process of raising birds such as chickens, quails, ducks, and turkey for obtaining meat eggs for food. In India, poultry farming is done as a side business along with agriculture or as a main profession. 

Minorca, Ancona, and Giriraja are recognized breeds or varieties of poultry known for their egg-laying or meat-production qualities.

Poultry farming is undertaken to raise domestic fowl for egg production from layers and the meat from the broilers

In the poultry industry, hens specifically raised for egg production are termed 'layers', whereas those raised for meat are called 'broilers'.

During the growing period, poultry birds require adequate space to prevent overcrowding, which can lead to stress, disease, and stunted growth. Proper spacing ensures efficient access to feed and water.

Broilers are fast-growing birds specifically bred for meat production. They typically reach market weight within 7 to 8 weeks of age.

Successful poultry farming requires a holistic approach. This includes providing proper nutrition, clean and safe shelter, and rigorous disease control measures to ensure high productivity.

common symptoms of bird flu include malaise, muscle ache, fever, respiratory disorder, headache, runny nose etc

• There are various factors involved in brooding. One of the factors is the formation of the litter bed. 
• The brooding house has the floor which is layered with many materials to form the bed. This is known as the litter bed. 
• generally, the straw, husk and hay. This bed is constructed of about 5-7.5 cm thickness. 
• It is necessary to keep the bed dry and hygienic.
• Thus, the correct answer is option A. 

The Silver Revolution in India refers to the significant increase in egg production through improved poultry farming techniques and better breeds.

For commercial egg production, only female birds (layers) are kept. Males are not required for egg production and are usually separated.

Debeaking is a standard practice in poultry to prevent cannibalism and feather pecking. The first debeaking is typically performed around the 21st day of life.

The second debeaking is performed to maintain the beak shape and prevent regrowth. This is typically done when the birds are around 18 weeks old, just before they start laying.

Vent sexing is a common method used to determine the sex of day-old chicks by examining the anatomical differences in the vent area.

In layer houses, slanting floors are designed so that eggs roll down into a collection tray automatically, which minimizes breakage and makes collection easier.

Australorp, Sussex, and Orpington are classic English poultry breeds. Minorca is a Mediterranean breed.

Poultry farming is the method of rearing and maintaining poultry birds. In poultry farm, there is two type of birds called as broilers and layers. Layers are the egg laying birds with low meat content. Broilers are the birds reared for the meat. For the development of chicken, layers incubate their eggs at a specific temperature. The recommended temperature is 102$^o$ Fahrenheit (38.9$^o$C). 

Eggs are a good source of protein and they contain all of the essential amino acids. 100 gram of egg contains approx. 13 gram of protein.

HH-260 is a high-yielding layer strain developed for high egg production, often cited in agricultural literature for its high annual output.

In the poultry industry, production of hatching egg is more expensive because it requires optimum temperature fo incubation. But the major factor is the weight of the hatching egg and chick weight. Under optimal egg storage and incubation conditions, chick weight is 67-69 per cent of egg weight at setting. Therefore, the more uniform the egg weight, the more uniform the chick weight. Breeder uniformity determines uniformity in the hatching eggs produced; the more uniform the breeder flock, the more uniform the egg weights. Hence, some of the eggs produced by hatchery flocks are not acceptable for incubation and is rejected. So, the production of hatching eggs is more expensive than the production of market eggs.

The indigenous breed of poultry of India is Aseel. It is noted for its pugnacity, high stamina, majestic gait and dogged fighting qualities.