is the hormone responsible for milk ejection in a lactating mammary gland

is a chemical means of thermoregulation.

The only portion of the nephron which is impermeable to water

This vitamin increases the efficiency of calcium and phosphorus absorption across the intestinal wall, making these minerals available for bone formation.

The pars intermedia of reptiles and amphibians secretes a hormone that enables them to change skin color. This hormone is called

This animal has a very poor sense of taste

Polyestrus animals are those that come in heat all throughout the year. Among the following which is not a polyestrus?

is the site of implantation of the fertilized ovum in livestock

Which among the following is not a chemical mediator released by terminal neurons of the autonomic nervous system

The young of this species is called a kid

These are cells in the testis which are responsible for the production of the hormone testosterone.

Nerve cells do not come in direct contact with one another, instead there is a small gap of about 200 Angstrom units between them. This gap is called a_

All the venous blood from the systematic circulations are returned back to the heart via the

This hormone heips in reducing urine volume by increasing reabsorption of water in the collecting ducts of the kidney

The hormone that increases the basai metabolic rate (SMR) of the body is

The hairs on the body of cattle converge to form hair streams and vortices known as

Destruction of the beta cells of the will lead into a disease condition known as diabetes mellitus.

Hair colors in horses is known by technical terms. The red color is called

The basic functional unit of the nervous system is called

Which of the foliowing is not present in the lymph fluid.

Which among the following herbivores is not a ruminant?

Which among the following is not a glucocorticoid?

The best sign of estrus in a normal cycing animal is

The normal rectal temperature range of chicken is

A specialized structure at the right atrial wall of the heart and is referred to usually as the cardiac pacemaker

Sexual receptivity which coincides with estrus in animals that exhibit estrous cycle is due to large amount of

An animal whose testes remained inside the body cavity and failed to descend to the scrotum is called

Implantation and placentation characterized by the formation of endometrial cups is specific for this species

Gigantism results from the hypersecretion of which hormone before the closure of the epiphyseal-diaphyseal plate of the long bones.

is the hormone which facilitates the transport of glucose from the blood into the cells of tissues.

The structural and functional unit of the kidney is called

A process of heat dissipation which involves direct contact of the animal with a part of its environment

The main site of microbial fermentation of roughages in a ruminant stomach is

Pneumatic bone contains air spaces or sinuses that communicate with the environment__is an example of the pneumatic bone of a horse

induced ovulator is an animal that does not ovulate unless there is copulation. Which among the following is an induced ovulator?

A kind of neuron which transmits nerve impulses from the effector organs to the spinal cord or brain

A phase within the estrous cycle which is characterized by sexual receptivity of the female.

Is a type of bone that contains air space

This term refers to the maintenance of static or constant conditions in the internal environment of the animal.

is the organ of prehension in the pig.

This endocrine giand is located at the neck area just below the larynx. It secretes thyroxine and T3.

Passive expiration is exemplified by which activity?

The amount air that moves into the lungs with each inspiration, or the amount that moves out with each expiration is called

One of the following hormones is not secreted by the anterior pituitary gland

The pig produces sweat as a means of losing heat. Its sweat glands are localized in the

The best time to breed or inseminate is at the

An oily and semi-liquid secretion of an animal's sebaceous gland, which protects the skin from harmful substances.

Pulmonary circulation is circulation of blood that takes place in the

A kind of blood cell (cellular element) which is non-nucleated and contains a red, pigment called hemoglobin

in general, the smaller the body size of an animal species, the faster is its pulse rate. The average pulse rate of a mouse is

This systemic circulation supplies blood to the heart itself

This is considered the highest class or the aristocrat among the horse colors

The average gestation period (days) in swine is

If the ambient temperature is equal to the body temperature, the body loses heat only by

The scientific name of quail is

The atrio-ventricular (A-V) valves prevent the backflow of blood from the ventricle to the atrium during ventricular systole. The A-V valve present on the right side of the heart is called

The most important contribution of animals to human welfare is

The part of the digestive tract which is the common passage for feed and air.

One of the important functions of this biological system is to carry 02 from the lungs to the tissues and CO2 from the tissues to the lungs.

The life-span of ejaculated mammalian spermatozoa in the female reproductive tract is about

are the muscles attached to the bones of the skeleton, which are usually referred to us the flesh or meat of our animals

From the left atrium, the blood goes to the ieft ventricle through the

The “wish bone" of chickens is actually the

The sensory receptor part of a neuron receives and converts several forms of energy into nerve impuise. One of these is called mechanical energy which is specific for

The production system for this livestock species is very intensive, commercially-oriented, & depends heavily on commercially mixed feeds

refers to the union of sperm and ovum.

The muscle which constitutes the thickness of the wall of the heart (myocardium), and its rhythmic contraction is responsible for blood circulation.

The artery at the base of the tail of an animal where the pulse is detected is called

Splanchnic circulation is a part of systemic circulation that supplies blood to the

The artery at the middle of the lower jaw where puise in the horse is usually determined.

The transport of hormones from the endocrine glands to the target organs is a function of the

is the hormone that stimulates ovulation of mature ovarian follicles

It is the range of environmental temperature where any reguiation to maintain body temperature is only slight and it is of the physical variety.

Auscultation method using stethoscope is the usual procedure employed in determining the pulse rate of

is defined as a substance or chemical mediator which is produced by an endocrine gland and carried by the blood to some distant parts of the body where it exerts its effects.

This biological system is composed of the brain, spinal cord and the nerves.

is the primary sex organ of the female animal. It is responsible for the production of the ovum and the female gonadal hormones

The mineral which is an integral component of hemoglobin is

This transient tissue results from the fusion of the fetal membranes to the endometrium of the uterus to permit physiologic exchange between fetus and mother during pregnancy.

Hepatic circulation is a part of systematic circulation that supplies blood to the

The cellular element that liberates thromboplastin which is important in blood clotting is called

The mineral which acts as a co-factor in the process of blood clotting is

In the digestive system of the fowl, the true stomach is the

The hormone produced by the Sertoli calls in the seminiferous tubules which has a negative feedback effect on FSH secretion is called

Which of the following is not included in the animal industry of the country.

Farrowing is a specific term for the act of parturition, or the act of giving birth in

The scientific name of horse is

Animals which feed on both piants and other animals are called

This vitamin is important for blood clotting because it is used as a co-factor in the synthesis of prothrombin by the liver.

The adrenal cortex has 3 types of cells making up the 3 zones of the cortex. The zone that secretes aldosterone is called

This animal subsists mainiy on grasses and is raised mainly by smallholder farmers in the rural areas.

A classification of bone which is greater in one direction than any other, and functions mainly as levers and aid in support, locomotion and prehension.

Hypertrophy & hyperplasia of the thyroid giand cells are compensatory mechanisms to counteract the deficiency of which mineral?

When the ambient temperature is higher than that of the body temperature, the body loses heat only by

Specific part of the testis where formation of spermatozoa takes place

Among the following animals, which is the one that can perceive many colors of the light spectrum

The secretion of aldosterone is not under the control of ACTH but by circulating factors such as

The part of the digestive system of the horse which enables it to live on grasses in spite of the fact that it is not a ruminant

Blood can carry oxygen to different parts of the body because of the conjugated protein present in the red blood cell. This conjugated protein which binds oxygen is called

Short bones are somewhat cuboid, or approximately equal in all dimensions. There is no marrow cavity, but the interior is composed of spongy substance with marrow spaces. An example of short bone is