A dog may not be able to take the place of a good and reliable home security system, but dogs are known to help thwart intruders and burglars. The tops choices for home security dogs, or guard dogs, are the following:

1. Bullmastiff

General Appearance: That of a symmetrical animal, showing great strength, endurance, and alertness; powerfully built but active. The foundation breeding was 60% Mastiff and 40% Bulldog. The breed was developed in England by gamekeepers for protection against poachers.

Size, Proportion, Substance: Size — Dogs, 25 to 27 inches at the withers, and 110 to 130 pounds weight. Bitches, 24 to 26 inches at the withers, and 100 to 120 pounds weight. Other things being equal, the more substantial dog within these limits is favored. Proportion — The length from tip of breastbone to rear of thigh exceeds the height from withers to ground only slightly, resulting in a nearly square appearance.

Gait: Free, smooth, and powerful. When viewed from the side, reach and drive indicate maximum use of the dog’s moderate angulation. Back remains level and firm. Coming and going, the dog moves in a straight line. Feet tend to converge under the body, without crossing over, as speed increases. There is no twisting in or out at the joints.

Temperament: Fearless and confident yet docile. The dog combines the reliability, intelligence, and willingness to please required in a dependable family companion and protector.

2. Rottweiler

General Appearance: The ideal Rottweiler is a medium large, robust and powerful dog, black with clearly defined rust markings. His compact and substantial build denotes great strength, agility and endurance. Dogs are characteristically more massive throughout with larger frame and heavier bone than bitches. Bitches are distinctly feminine, but without weakness of substance or structure.

Size, Proportion, Substance: Dogs — 24 inches to 27 inches. Bitches — 22 inches to 25 inches, with preferred size being mid-range of each sex. Correct proportion is of primary importance, as long as size is within the standard’s range.

The length of body, from prosternum to the rearmost projection of the rump, is slightly longer than the height of the dog at the withers, the most desirable proportion of the height to length being 9 to 10. The Rottweiler is neither coarse nor shelly. Depth of chest is approximately fifty percent (50%) of the height of the dog. His bone and muscle mass must be sufficient to balance his frame, giving a compact and very powerful appearance.

Serious Faults — Lack of proportion, undersized, oversized, reversal of sex characteristics (bitchy dogs, doggy bitches).

Gait: The Rottweiler is a trotter. His movement should be balanced, harmonious, sure, powerful and unhindered, with strong forereach and a powerful rear drive. The motion is effortless, efficient, and ground-covering. Front and rear legs are thrown neither in nor out, as the imprint of hind feet should touch that of forefeet. In a trot the forequarters and hindquarters are mutually coordinated while the back remains level, firm and relatively motionless. As speed increases the legs will converge under body towards a center line.

Temperament: The Rottweiler is basically a calm, confident and courageous dog with a self-assured aloofness that does not lend itself to immediate and indiscriminate friendships. A Rottweiler is self-confident and responds quietly and with a wait-and-see attitude to influences in his environment. He has an inherent desire to protect home and family, and is an intelligent dog of extreme hardness and adaptability with a strong willingness to work, making him especially suited as a companion, guardian and general all-purpose dog.

3. German Shepherd

General Appearance: The first impression of a good German Shepherd Dog is that of a strong, agile, well muscled animal, alert and full of life. It is well balanced, with harmonious development of the forequarter and hindquarter. The dog is longer than tall, deep-bodied, and presents an outline of smooth curves rather than angles. It looks substantial and not spindly, giving the impression, both at rest and in motion, of muscular fitness and nimbleness without any look of clumsiness or soft living. The ideal dog is stamped with a look of quality and nobility–difficult to define, but unmistakable when present. Secondary sex characteristics are strongly marked, and every animal gives a definite impression of masculinity or femininity, according to its sex.

Size, Proportion, Substance: The desired height for males at the top of the highest point of the shoulder blade is 24 to 26 inches; and for bitches, 22 to 24 inches.

The German Shepherd Dog is longer than tall, with the most desirable proportion as 10 to 8½. The length is measured from the point of the prosternum or breastbone to the rear edge of the pelvis, the ischial tuberosity. The desirable long proportion is not derived from a long back, but from overall length with relation to height, which is achieved by length of forequarter and length of withers and hindquarter, viewed from the side.

Gait: A German Shepherd Dog is a trotting dog, and its structure has been developed to meet the requirements of its work. General Impression– The gait is outreaching, elastic, seemingly without effort, smooth and rhythmic, covering the maximum amount of ground with the minimum number of steps. At a walk it covers a great deal of ground, with long stride of both hind legs and forelegs. At a trot the dog covers still more ground with even longer stride, and moves powerfully but easily, with coordination and balance so that the gait appears to be the steady motion of a well-lubricated machine. The feet travel close to the ground on both forward reach and backward push. In order to achieve ideal movement of this kind, there must be good muscular development and ligamentation. The hindquarters deliver, through the back, a powerful forward thrust which slightly lifts the whole animal and drives the body forward. Reaching far under, and passing the imprint left by the front foot, the hind foot takes hold of the ground; then hock, stifle and upper thigh come into play and sweep back, the stroke of the hind leg finishing with the foot still close to the ground in a smooth follow-through. The overreach of the hindquarter usually necessitates one hind foot passing outside and the other hind foot passing inside the track of the forefeet, and such action is not faulty unless the locomotion is crabwise with the dog’s body sideways out of the normal straight line.

Temperament: The breed has a distinct personality marked by direct and fearless, but not hostile, expression, self-confidence and a certain aloofness that does not lend itself to immediate and indiscriminate friendships. The dog must be approachable, quietly standing its ground and showing confidence and willingness to meet overtures without itself making them. It is poised, but when the occasion demands, eager and alert; both fit and willing to serve in its capacity as companion, watchdog, blind leader, herding dog, or guardian, whichever the circumstances may demand. The dog must not be timid, shrinking behind its master or handler; it should not be nervous, looking about or upward with anxious expression or showing nervous reactions, such as tucking of tail, to strange sounds or sights. Lack of confidence under any surroundings is not typical of good character.

4. Doberman Pinscher

General Appearance: The appearance is that of a dog of medium size, with a body that is square. Compactly built, muscular and powerful, for great endurance and speed. Elegant in appearance, of proud carriage, reflecting great nobility and temperament. Energetic, watchful, determined, alert, fearless, loyal and obedient.

Size, Proportion, Substance: Height at the withers: Dogs 26 to 28 inches, ideal about 27½ inches; Bitches 24 to 26 inches, ideal about 25½ inches. The height, measured vertically from the ground to the highest point of the withers, equalling the length measured horizontally from the forechest to the rear projection of the upper thigh. Length of head, neck and legs in proportion to length and depth of body.

Gait: Free, balanced, and vigorous, with good reach in the forequarters and good driving power in the hindquarters. When trotting, there is strong rear-action drive. Each rear leg moves in line with the foreleg on the same side. Rear and front legs are thrown neither in nor out. Back remains strong and firm. When moving at a fast trot, a properly built dog will single-track.

Temperament: Energetic, watchful, determined, alert, fearless, loyal and obedient.

5. Chow

General Appearance: Characteristics – An ancient breed of northern Chinese origin, this all-purpose dog of China was used for hunting, herding, pulling and protection of the home. While primarily a companion today, his working origin must always be remembered when assessing true Chow type. A powerful, sturdy, squarely built, upstanding dog of Arctic type, medium in size with strong muscular development and heavy bone. The body is compact, short coupled, broad and deep, the tail set high and carried closely to the back, the whole supported by four straight, strong, sound legs. Viewed from the side, the hind legs have little apparent angulation and the hock joint and metatarsals are directly beneath the hip joint. It is this structure which produces the characteristic shorter, stilted gait unique to the breed. The large head with broad, flat skull and short, broad and deep muzzle is proudly carried and accentuated by a ruff. Elegance and substance must be combined into a well balanced whole, never so massive as to outweigh his ability to be active, alert and agile. Clothed in a smooth or an offstanding rough double coat, the Chow is a masterpiece of beauty, dignity and naturalness. Essential to true Chow type are his unique blue-black tongue, scowling expression and stilted gait.

Size, Proportions, Substance: Size — The average height of adult specimens is 17 to 20 inches at the withers but in every case consideration of overall proportions and type should take precedence over size. Proportions — Square in profile and close coupled. Distance from forechest to point of buttocks equals height at the highest points of the withers. Serious Fault Profile other than square. Distance from tip of elbow to ground is half the height at the withers. Floor of chest level with tips of elbows. Width viewed from the front and rear is the same and must be broad. It is these proportions that are essential to true Chow type. In judging puppies, no allowance should be made for their failure to conform to these proportions.

Substance — Medium in size with strong muscular development and heavy bone. Equally objectionable are snipy, fine boned specimens and overdone, ponderous, cloddy specimens. In comparing specimens of different sex, due allowance must be made in favor of the bitches who may not have as much head or substance as do the males. There is an impression of femininity in bitches as compared to an impression of masculinity in dogs.

Gait: Proper movement is the crucial test of proper conformation and soundness. It must be sound, straight moving, agile, brief, quick, and powerful, never lumbering. The rear gait shorter and stilted because of the straighter rear assembly. It is from the side that the unique stilted action is most easily assessed. The rear leg moves up and forward from the hip in a straight, stilted pendulum-like line with a slight bounce in the rump, the legs extend neither far forward nor far backward. The hind foot has a strong thrust which transfers power to the body in an almost straight line due to the minimal rear leg angulation. To transmit this power efficiently to the front assembly, the coupling must be short and there should be no roll through the midsection. Viewed from the rear, the line of bone from hip joint to pad remains straight as the dog moves. As the speed increases the hind legs incline slightly inward. The stifle joints must point in the line of travel, not outward resulting in a bowlegged appearance nor hitching in under the dog. Viewed from the front, the line of bone from shoulder joint to pad remains straight as the dog moves. As the speed increases, the forelegs do not move in exact parallel planes, rather, incline slightly inward. The front legs must not swing out in semicircles nor mince or show any evidence of hackney action. The front and rear assemblies must be in dynamic equilibrium. Somewhat lacking in speed, the Chow has excellent endurance because the sound, straight rear leg provides direct, usable power efficiently.

Temperament: Keen intelligence, an independent spirit and innate dignity give the Chow an aura of aloofness. It is a Chow’s nature to be reserved and discerning with strangers. Because of its deep set eyes the Chow has limited peripheral vision and is best approached from the front.

6. Rhodesian Ridgeback

General Appearance: The Ridgeback represents a strong, muscular and active dog, symmetrical and balanced in outline. A mature Ridgeback is a handsome, upstanding and athletic dog, capable of great endurance with a fair (good) amount of speed. Of even, dignified temperament, the Ridgeback is devoted and affectionate to his master, reserved with strangers. The peculiarity of this breed is the ridge on the back. The ridge must be regarded as the characteristic feature of the breed.

Size, Proportion, Substance: A mature Ridgeback should be symmetrical in outline, slightly longer than tall but well balanced. Dogs–25 to 27 inches in height; Bitches–24 to 26 inches in height. Desirable weight: Dogs–85 pounds; Bitches–70 pounds.

Gait: At the trot, the back is held level and the stride is efficient, long, free and unrestricted. Reach and drive expressing a perfect balance between power and elegance. At the chase, the Ridgeback demonstrates great coursing ability and endurance.

Temperament: Dignified and even tempered. Reserved with strangers.

More information about the different dogs: American Kennel Club

This entry was posted on Wednesday, September 5th, 2007 at 8:35 am and is filed under Physical Safety, Safety, Home Security. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.