Why broilers fall to their feet and what should be done
Diseases of chickens are found no less than diseases of other farm animals, which means that the issue of their death will always be relevant. Problems with the legs of birds take almost the first place in the list of all possible problems, so let's look at the possible causes of this phenomenon and how to eliminate them using broilers as an example.
Why broilers get on their feet
Leg problems are common to both small broilers and adults. True, there are many reasons for their development, therefore, before treating a bird, it is worthwhile to understand the root cause of what happened.
Violation of the sanitary and hygienic norms of broiler keeping is not the only, but one of the first “suspects” when the hen’s legs fail.
- bird landing density - should be no more than 5 individuals per 1 square. m;
- regularity of cleaning in the house - should be done at least 1 time in several weeks (in a limited space, bacteria develop very quickly, which leads to the appearance of various ailments);
- excessive sterility of the room - frequent cleaning leads to the destruction of beneficial bacteria, because of which the immunity of the bird suffers and its natural microflora is disturbed;
- ignoring the onset of the problem - if there are already several broilers with "spreading legs" in the chicken coop, you cannot leave them with healthy individuals;
- violation of the rules for arranging ventilation and the influx of fresh air - increased humidity and stagnant air are excellent "soil" for the development of pathogens;
- unsanitary conditions of feeders and drinking bowls - normally they need to be cleaned at least once every few days, especially if the bird is given wet mixes.
Usually, changes in the conditions of detention are quite enough to localize the problem at its initial stages of development and to avoid more serious consequences. However, if the foot ailments of adult broilers or chickens are massive, then it is worth considering other possible causes of their development.
Did you know? In fact, chickens are not as stupid as many people think. From the first hours of their life, they can count, and the general level of development of chickens is much higher than that of a one-year-old human cub.
For both humans and animals, a full and properly balanced diet with a sufficient amount of vitamins and minerals plays a significant role in well-being. With their shortage, they talk about vitamin deficiency, which in the case of broilers is more often manifested on those farms where the bird is fed exclusively with feed mixtures.
For lack of these products, veterinarians advise using ready-made vitamin-mineral compounds. Starting from the age of five days, it is useful for chickens to give preparations containing vitamins A, D and E, which are either mixed with food or instilled into the chicks drop by drop.
If you decide to replenish the vitamin reserves of birds with the help of natural products, then you should pay attention to sprouted grain and seasonal greens. The rate of delivery of such food is not limited, the main thing is that poisonous specimens should not come across in the collection of herbs.
Supporting the optimal ratio of vitamins and minerals in the body is an excellent prevention of broiler mortality.
Important! Excess nutrients are just as harmful as their deficiency, so if you decide to give ready-made veterinary drugs to the bird, be sure to follow the instructions exactly.
Violation of sanitary and hygienic standards when keeping a bird and ignoring its needs for nutritional components, of course, create excellent conditions for the development of ailments, but the development of infectious and bacterial processes in the body will bring much more harm.
Many of them are characterized by leg failure, but among the most common causes of death are the following.
Unlike other diseases, rickets is most often manifested in young individuals and is explained by a lack of vitamin D. However, one should not exclude the likelihood of its appearance in adult chickens, especially if they were kept in improper conditions from childhood.
Violation of metabolic processes in the body and a decrease in calcium concentration lead to a deterioration in the formation of bone tissue, which causes broiler legs to weaken. If the bird is kept only in enclosed spaces with limited exposure to sunlight, signs of rickets are observed in almost all representatives of the chicken herd.
Do not forget that the mentioned vitamin D is the only trace element whose formation occurs in the body exclusively under the influence of ultraviolet radiation, so chickens that spend more time in the fresh air are much less likely to experience changes in bone tissue, which means that problems with legs are reduced to a minimum.
As for the main symptoms of rickets in broilers, then they include:
- disheveled appearance and lack of plumage;
- limited mobility;
- decreased appetite;
- impaired coordination of movements;
- softening of beak and claws;
- breakdown and death.
Newcastle disease is not unreasonably considered one of the most dangerous viral ailments of the bird, because the percentage of deaths is very high. Infection of healthy individuals occurs both in direct contact with a sick bird, and as a result of the joint use of feeders and drinkers.
The incubation period is usually 7-12 days, but weak individuals can die as early as the first day after infection.
You can notice the development of the disease (if it does not occur in a latent form) by the following signs:
- impaired coordination, paralysis of the limbs and neck;
- decreased appetite, diarrhea;
- discharge of mucus from the nose and beak, coughing, coughing;
- the appearance of vision problems (usually conjunctivitis and blurred eyes);
- increase in body temperature;
- inactive and depressed state.
In some cases, Newcastle disease takes a chronic form and manifests itself in:
- limited mobility;
- the appearance of seizures in the limbs and cervical spine;
- loss of appetite and general exhaustion of the body;
- overexcitation of the nervous system, expressed in the swaying or twitching of the head.
Important! Newcastle disease can affect any type of poultry, so broilers are often infected by contact with ducks, geese or turkeys during a joint walk.
This disease has an infectious origin and is more characteristic of young broilers. Among the main causes of the development of the disease, poor nutrition of the bird and violation of sanitary-hygienic standards of its maintenance are noted, which only contributes to the spread of the pathogen - the bacteria Bacillus pullorum.
The main symptoms of damage to chickens by pullorosis are:
- sedentary lifestyle due to weakness in the legs;
- constantly closed eyes;
- frequent breathing only through the beak (therefore, it is always open);
- white diarrhea;
- exhaustion of the body;
- constant feeling of thirst.
Of course when detecting sick individuals, they must be immediately isolated from a healthy livestock, and the premises, feeders and drinking bowls should be treated with disinfectants. For the treatment of pullorosis in broilers, Biomycin is usually prescribed with the addition of Furazolidone in feed mixtures.
Another dangerous disease of an infectious nature, which is characterized by damage to the nervous system and broiler eyes.
The incubation period has quite wide limits and can last from several weeks to 150 days (the specific time of the development of the disease depends on the age of the birds, their health status and individual characteristics of the immune system).
The characteristic symptoms of Marek’s disease are mainly due to the form of its course (acute or classical), but almost always the following are noted in the list of main symptoms:
- disorientation in space, which leads to constant falls and trauma to diseased individuals;
- loss of appetite and rapid exhaustion of the body;
- narrowing of the pupil and changing the iris;
- blanching of growths on the head;
- weakening of motor activity;
- decrease and complete loss of vision (the bird just stands in one place or when moving constantly falls to one side).
Unfortunately, there is still no effective method for treating Marek’s disease, and the only effective method is prevention with the timely use of a suitable vaccine.
Did you know? Images of chickens were found during excavations of the tomb of Tutankhamun, which means that people knew, and possibly bred them back in 1350 BC. e.
At the initial stages of the development of the disease, before the bird began to fall on its feet, the drug “Acyclovir” can sometimes be used as antiviral therapy, but even in this case, one hundred percent effectiveness of such treatment cannot be guaranteed.
A bacterial disease that affects mainly young broilers up to three months of age. The cause of the disease can be one of the eleven possible types of pathogen bacteria that enter the body of a healthy bird along with the discharge of the patient (if kept together) or through insect bites.
Sometimes the coccidiosis carrier is the person himself, using equipment and clothing untreated after contact with a sick bird.
The exact time of the incubation period is very difficult to determine, since in each individual case the duration of the "hidden" phase is different, and only when the bacteria are already firmly settled in the feathered organism, the following symptoms become noticeable:
- lethargy, depression and apathy (chickens may refuse to leave their perches);
- lack of appetite and, as a result, weakening of the body due to lack of nutrients;
- lack of coordination;
- bloody diarrhea;
- constant presence near a heat source (more typical for small chickens, which, due to exposure to bacteria, constantly feel cold).
An ailment of fungal origin, affecting the respiratory system of mainly young broilers. Most often, infection of the bird occurs through the use of infected feed, the use of straw or other litter material, and the development of the disease can be observed at any time of the year.
Aspergillosis is considered one of the most dangerous ailments, characterized by such manifestations as:
- apathetic and lethargic state;
- decreased or complete lack of appetite;
- rapid and labored breathing;
- growth lag.
Mucous discharge from the eyes and nose is sometimes observed. With timely detection, aspergillosis can be treated with antibiotics.
Unlike most of the previous options, arthritis refers to those diseases that are more common in adult broilers.
Find out what chicken leg diseases exist and how to treat them.
The main symptom is lameness and death on the legs, which is explained by the development of the inflammatory process in the articular bags and soft tissues adjacent to them.
Important! An early sign of the development of arthritis is the impossibility of keeping the chicken on the perch, therefore, if some individual constantly keeps out of the way and does not try to perch, it is worth suspecting the presence of problems with its paws.
There are frequent deaths, and this applies to both adults and young animals.
How to treat broilers
The selection of specific drugs and the development of a treatment regimen directly depend on the nature of the origin of a particular ailment, but in any case, the faster the owner seeks help from veterinarians, the greater the chance of saving the livestock.
Most often, birds are prescribed drug therapy, although one should not exclude the possibility of solving the problem by changing the diet of broilers or adding special vitamin-mineral complexes to the usual menu.
Deciding what to do when the first symptoms of a disease appear, it is advisable to immediately determine whether it is infectious or bacterial. If there is reason to suspect an infection, then penicillin-type antibiotics, as well as Chlortetracycline, Levomycetin and Oxytetracycline, are used to combat it.
These drugs are injected at the dose recommended by the manufacturer. In addition to them, multivitamin complexes can be included in the diet of the herd, which strengthen natural immunity.
If broilers were diagnosed with pullorosis, then “Furazolidone”, which is added to food for both sick and healthy individuals, can help in the fight against it (1 tablet for three days).
Coccidiosis-infected chickens are usually prescribed coccidiostatics, in addition to which Chloramphenicol and Aprol can be used. Baykoks also proved itself well, which is diluted in water in a proportion of 1 ml of the drug per 1 liter of water (birds should drink the solution during the day).
- "Iodinol" - is diluted in a small amount of water (0.2-0.3 ml each) and soldered to each broiler half an hour before feeding.
- “Vetom” - 1 full teaspoon is bred in 3 liters of water and fed to grown chickens (no more than 10-15 individuals) during the day (the course of immunization is 7 days).
- Chiktonik - 1 ml of the drug is dissolved in a liter of pure water and is evaporated to the bird in a ten-day course (every day a new portion of the solution is prepared).
With the case of monthly chickens, it is worth considering the option of developing rickets in them, and if such a diagnosis is confirmed, then you will have to add tricalcium phosphate, fish oil and synthetic vitamin D3 to their food.
The daily dosage of fish product is 0.2 ml per chicken, while the amount of tricalcium phosphate is calculated on the basis of the total daily mass of the supplied feed and should be 2% of the obtained value.
The exact dosage and the specific drug depend on a number of factors: the age, condition and strength of the manifestation of a particular ailment, therefore, when calculating the required amount of the selected drug, it is important to consult a doctor.
Options for solving the problem yourself
If suspicions about the presence of a viral or bacterial infection have not been confirmed and the cause of the death of broilers is most likely due to some external influence, it is worth analyzing the situation and reviewing the conditions of feeding and keeping the chickens created.
The same logic should be adhered to when keeping birds in a cramped room with limited sunlight. In this case, one should not exclude the likelihood of developing rickets.
Anyway, but in any incomprehensible situation, you can take some measures to independently solve the problem:
- use crushed shells, eggshells or chalk, which can serve as an excellent source of calcium;
- add greens (for example, finely chopped nettles) to the wet mixers, and this also applies to the nutrition of three-day-old chicks (in this case, the proportion of greens should not exceed 1/10 of the total amount of feed given);
- use feed mixtures instead of monovariants in the form of one corn, wheat or bran;
- temporarily transfer the birds to another room and disinfect the chicken coop.
Did you know? The largest representatives in the world of chickens are roosters of the Brama breed. For example, one of the most famous birds - Rooster Coburn - weighed as much as 11 kg with a height of 91 cm.
Одним словом, сделайте всё возможное, чтобы убедиться в подходящих условиях существования бройлеров, а если это не поможет, тогда придётся заняться более глубоким изучением причин появления проблем с ногами пернатых.
Чтобы не разбираться с последствиями различных болезней, желательно сделать всё возможное для их предупреждения, поэтому при выращивании бройлеров обязательно обратите внимание на следующие профилактические мероприятия:
- соблюдение плотности посадки (не больше 3–5 особей на 1 кв. м);
- поддержание оптимальных температурных значений на каждом возрастном этапе развития пернатых (например, для маленьких цыплят эти показатели должны находиться в пределах +27…+32 °C);
- регулярная смена воды;
- сохранение чистоты в курятнике (регулярная очистка территории, но не чаще одного раза в несколько недель);
- организация хорошей вентиляции (без малейших сквозняков) и подходящего освещения в птичнике;
- организация рациона питания с использованием комбикормов или самостоятельно приготовленных кормовых смесей, но обязательно с достаточным количеством витаминов и минералов в их составе (в первые дни жизни в корм цыплятам можно добавлять по несколько капель рыбьего жира, а в дальнейшем включить в меню овощи и костную муку);
- обеспечение двигательной активности молодняка (постоянное содержание в клетках только поспособствует развитию рахита);
- организация регулярного выгула на свежем воздухе (особенно если витамин D не используется в виде пищевых добавок).
Соблюдая такие несложные правила содержания пернатых, вы защитите их от возможных болезней и упростите себе задачу ухода за бройлерами, а если птицы всё же начнут падать на ноги, тогда причину точно можно искать в развитии инфекционных или бактериальных недугов, исключив оплошность со своей стороны.