
Necessary surgery is surgery to save life or improve the quality of life. Automobile injuries to the soft tissue and fractures are examples. The surgical approach to eliminate cancer is also necessary and successful more often than not.
In days gone by and occasionally today seriously injured dog were and are unnecessarily destroyed by well-meaning unenlightened people - people who do not realize how effective a veterinarian can be. For the novice to assume an injured dog is hopelessly injured is a mi stake. Even we veterinarians surprise ourselves at times when a seemingly hopeless case recovers.
A three-pound adult Chihuahua ran out in front of a car that was traveling fifty miles an hour. The wheels straddled the dog but the undercarriage of the vehicle struck the little dog on top of its head, crushing the skull and indenting the head, forming a large depression. The owner rushed in with the unconscious dog, which appeared to be taking its last breath. This was a fatal injury, the owner left in tears as quickly as she had arrived. What appeared to be is that little can be done but to operate immediately. However, when we grasped the skin with an instrument at the deepest part of the depression and pulled, the fragments of the fracture had pinched the inner layer of skin between them so that when the skin was pulled with a surgical forceps the fractured skull returned to its normal position. The little dog recovered from unconsciousness in ten minutes, but the injury appeared to be so serious we waited for half an hour before phoning the distraught owner to come and get her dog. That Chihuahua lived another fourteen years to die at sixteen years of age of natural causes.








Dislocations occur in the tails and the toes of dogs of all breeds. Puppies born with tails that bend backward actually have dislocated vertebrae (an uncorrectable condition). Bending the tail to straighten it usually results in breaking it or damaging it so severely that the end below the break dies and must be removed.
The obligations of dog owning are few, but you must fulfill them. All that the dog requires of you is food, water, comfort, exercise, health,affection, and protection. If you can't supply these simple needs, it would be better for you not to have a dog, for it will only be a burden.



The most common problems of the eyelids that affect the eyes are tumors. Usually benign, they grow on the edges and often irritate the corneas by the constant blinking of the lids. Some tumors protrude away from the eyes and are only unsightly but those that irritate corneas should be removed surgically or blindness may result.
Trigger fish is very famous aquarium fish. The trigger fish family is fairly small but quite widespread, one specie seven finding its way as far north as the English Channel. They are so-called on account of a locking spine at the front of the dorsal fin, which the fish uses to wedge itself into caves and openings. Triggers can be bought at any size from 2.5 to 23cm (1-9in) and their hardiness and nitrite tolerance make them suitable fish for beginners, but choose their companions with care. All the triggers grow to a large size and the family has a reputation for aggressive behavior, which is not altogether unfounded. In the wild, triggers eat crustaceans, sea urchins, etc., so never put them in an invertebrate tank. Feeding them in captivity presents no problem, as they will eat anything with their strong, sharp teeth - including your fingers if you are not careful!






It may seem hard to believe that piranhas should be related to the gentle little fishes that make up the majority of the characin group, but it is true. At up to 30cm (12in) long, piranhas are very much larger than tetras, but do not deserve the nasty reputation they have acquired over the years. In the aquarium, at least, the piranha is a relatively shy, retiring creature. Stories of piranhas in the dark Amazonian rainforests reducing cattle to skeletons in minutes are true, but this occurs in a river system where piranhas live in great shoals of 300 fishes or more and become very hungry. Many people keep piranhas with a sort of morbid fascination for what might happen, and give the impression that they would be quite pleased if the fish bit them as evidence of their macho capabilities! Keep young piranhas in a tank at least 120cm (48in) long, but provide a larger aquarium as they grow. Similar in shape to piranhas and also from northern South America, the Pac us can also be kept in a large tank.
Neotropical Cichlid are fish that range in behavior from pacifist to antagonistic; in fact, the names angels and devils are particularly appropriate. These cichlids require Allaire aquarium and plenty of food. They make a lot of mess and need large, regular water changes. Their real attraction is that many of them have an intelligence lacking in nearly all other fish - and most theatricals for that matter. These fish will move gravel and rocks with purpose - usually to stake out a territory and entice a mate. They recognize their owner, rushing to the tank glass for food when ever hoer she approaches, and often shun strangers. Some can be taught to perform simple tricks with the inducement of an extra meal, something these greedy beasts always appreciate. When these cichlids breed, they care for the free-swimming young for quite some time, defending the minute babies from all potential predators, often regardless of the predator's size. Unfortunately, most of the larger neotropical cichlids are much bigger and more aggressive than, say, the gentle angelfish. These brutes can fight and remove scales from each other with ease, and yet they are very popular in the home aquarium and, indeed, very easy to keep, provided their requirements are met. Firstly, they need an appropriately large tank, at least 90cm(36in) long, and even a tank this size will not house many specimens. Within this space they can exercise their normal territorial behavior; these fish become very possessive particular patch and will guard it fiercely from all rivals. Large cichlids eat a great deal of food and often make quite a mess wit hit. Large, regular water changes are therefore essential and a good mechanical filter to assist the biological filter is a help. Lastly, it is ago od idea to stock fish of varying sizes and co lour patterns if you want them to live together in relative peace, as these fish tend to be most aggressive towards loyalties.

The cichlids from Lake Malawi and Lake Tanganyika in Africa are overcool, highly aggressive, hardy, easy to breed and make a superb display. They require a good under gravel filtration system, as they ar every intolerant of nitrite and soon react adversely if any waste matter disallowed to build up in the tank. These fish tend to dig into the grave land excavate down to the under gravel filter plate, unless there is gravel tidy to prevent this. Rift Lake cichlids need plenty of rocks among which to establish territories. Unfortunately, many Rift Lake cichlids are fond of nibbling vegetation and this, coupled with their digging habits, does not encourage healthy plant growth. Plastic plants are an alternative, but anchor them into the gravel with rocks to prevent them being uprooted. Keep the water in a Rift Lake cichlid tank at about 25.5°C(78°F) and make sure it is well aerated, hard and alkaline. Carry out regular water changes of 25 percent to keep the water free of any waste build-up. Most of these fish like to graze on algae on the rocks in the tank; good lighting encourages algal growth.
Lion fishes, turkey fishes, scorpion fishes, call them what you will, these fish are both dangerous and very poisonous to human sand must be handled with care or, more accurately, not handled at all. The first seven spines of the dorsal fin carry an extremely toxic poison - verging on lethal - and only a foolhardy Aquarius would try to touch the eighth spine. However, lion fishes are hardy and nitrite-tolerant, long-lived, slow-moving and quite good aquarium fish. The lionfish rarely attacks other aquarium fish, as long as these will not fit readily into its open mouth, and only uses its spines in de fence, whether against human or fishy predators. Do not put lion fishes with mobile invertebrates, which form their staple diet in the wild. Sometimes they are difficult to feed in captivity. In the wild, they gorge themselves periodically, so once imported they must be weaned off live food and onto frozen lance fish and similar foods. In the wild they 'hang' under ledges, and are happier if given similar protection in an aquarium.
Killifish, or egg laying tooth carps as they are sometimes described, are a very colorful group of usually small, fishes. Most come from Africa, but some are found in the Americas, Asia and Europe. Unfortunately, they do not make very good community fish and are certainly not the best choice for beginners. Killifish usually come from very soft-water regions,which also tend to be acidic in composition, although a few are founding more alkaline and harder water areas. The fish often live in shaded areas of rainforest, trapped in small pools, where water temperatures may fall as low as 2.19C(70°F) or lower. If you wish to keep Killifish inane aquarium, you must provide the appropriate water conditions,otherwise they are unlikely to survive for very long. This being so and because most other species (apart from some tetras and a few others) do not really thrive in such conditions, it is easy to see why Killifish are usually kept only with their own kind.
Hawk fishes are smallish predators that readily adapt to aquarium life. Most species rarely grow more than 7.5-10crn (3-4in) in length, so as long as they are not housed with tiny fish or smallish shrimps, they can be put with most other available animals. Hawk fishes spend most of their time perched on rocks and ledges watching the world go by - the yare not 'dozy' like lion fishes, for instance, but alert and upright, even though they are stationary. When something takes their interest, whether it be food or a threat, they dart off the rock in a saw like in order to investigate, hence their common name. These excellent community fish never cause problems with other inhabitants; if regularly fed they can live for tn any years in captivity.
Several types of hatchet fish form another little group of very popular fishes. The main apparent difference between them is their coloration, otherwise they require much the same in terms of care and feeding are surface-feeders and dwellers. They can rise progressively above the surface in much the same way as a hydrofoil and often skim over the surface of the water for up to 2m (6.5ft). This is because they have developed long pectoral fins that they can 'beat' like wings. Be sure to attach a very tightly fitting cover over any tank containing hatchet fishes. The most commonly seen species in the aquarium hobby is the silver hatchet fish (Gastropod stencil). It grows to about 6.5cm (2.6in) and thrives in soft, slightly acidic water Bata temperature of about 26°C (79°F).
The guppy must be one of the best-known tropical aquarium fishes, as well as one of the most beautiful and prolific. It is not aggressive to any degree and can be kept with any other fish that will not be aggressive towards it or grow big enough to eat it. Guppies make no special demands regarding care and will survive in less than perfect conditions(although this is no excuse to neglect them). The guppy originates from Central America and the northern part of South America. In its natural state, it is a relatively uninteresting fish with very little coloration, but over the years, fish breeders have developed various highly coloreds and forms with greatly elaborated fins. This breeding work has been concentrated on the male fishes, which even in the relatively drab wild specimens show more co lour than the females. Depending on the particular aquarium-bred strain, the dorsal fin may either be small or massively flowing, but the male's tail will always be like a long flowing scarf. The tail may he one of several different shapes, depending on the breed, and will also have various names, such as 'delta tail', `velar or`fantail', and so on. The colors of these fish are absolutely stunning.Agai, depending on the particular strain of guppy, it may be red, blue,green, black or any combination of these and any other colors, too.The colors may extend across the body right up to the head. Females


The typical gobby is a small, tube-shaped fish, perhaps about 5-10cm (2-4in) long and often drably colored. It spends most of its life scurrying along the sand. Many gobbies live in small caves or among coral branches and many enjoy a symbiotic relationship with other animals, most notably with certain species of shrimps. Since most gobbies are very hardy and disease-resistant and never cause compatibility problems, the small percentage of brightly species make excellent aquarium inhabitants. They are generally easy to feed on a wide range of readily available foods, including meat foods, dried foods and brine shrimps. These fascinating little fishes are widely available at dealers and not expensive.

Many of the popular tropical aquarium cat fishes originate from South and Central America, Africa and Asia. Most are rather drably colored, mainly because they need good camouflage to avoid predation. As they usually frequent the bottom, the ideal colors are brown and black. Many have poor sight, as they are often nocturnal or live in silt-laden waters. To compensate for this, catfishes have developed barbells, which recovered in taste receptors. Barbells may be long and used for hunting, basin the pummeled or, as in the Cordovans catfishes, short and used to burrow and tease their way into the gravel to detect food or insects. Some catfishes scavenge at the bottom for tasty morsels, others amendatory swimmers that feed mainly on insect larvae. Large predatory species hunt for small live fish, a few feed on fruit and seeds and some of the most bizarre species are parasitic - even to the extent of feeding on other catfishes.
Marine butterfly fish are closely related to marine angels, but are quite different in both appearance and in habits .Butterflies are very widespread throughout the world's tropical seas wherever there are coral reefs. They rely heavily on the reefs for food, as well as for protection, and would not normally stray even a few metes away from their natural home. Butterflies have a small mouth and need to peck at food constantly; consequently they are slow growers, rarely exceeding 15crn(6in) langouste are not fast swimmers and have no natural protection against predators other than camouflage. Therefore, not surprisingly, they are shy and rather sensitive fish. Never put butterflies with boisterous fish, such as damsels and triggers, as they cannot compete either for territory or for food.
Some of the box fishes are so cute that they simply cannot he ignored they are also known as yellow box fish. These fish are cube or cuboids in shape, and have a hard exterior (though not a retrospection). The hardened skin is only softer around the eyes, mouth and fins, so these fish swim as though in a straightjacket. They are very slow swimmers, though quittance, and settle down well to aquarium life, although they are obviously not adept at battling for food. Smaller species fit well into invertebrate systems.
Of all the tropical aquarium catfishes, Cordovans catfishes must be the most popular. There are many types of Cordovans, a group of very small, well-armored catfishes from South America, with a variety ocular patterns depending on their native habitat. If at all possible, setup the aquarium to simulate the slow-moving rivers of South America,where these catfishes come from. Introduce plenty of plants, somehow and fine gravel to make them feel at home. A tank containing only Cordovans catfishes does not make a very good community, as the fish tend to spend most of the time at the bottom of the tank, leaving the top half looking empty. Cordovans catfishes often take gasps of air from the atmosphere, so do not he alarmed if your fish make a sudden split-second dash from the bottom to the surface; this behavior is totally normal. These busy little beavers are seen in nearly every home community tank and most are easy to keep, although a few can be quite delicate. They prefer their water to be slightly cooler than most theosophical but will quite happily live at the optimum temperature of24°075°F). However, some species need very specific water conditions,especially if they are wild-caught fish, so check before buying.
The bird flu or the avian influenza is caused by a bird influenza virus. The virus is usually carried in the intestines by wild birds traveling for long distances. In most cases the virus does not affect the birds. Though the birds usually do not get sick even if they are carrying the virus, yet the virus is highly contagious and can easily spread from one bird to another. The infected birds secrete contagious saliva, nasal secretions and fecal matters which act as the medium of viral transference to other birds.