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Hello,
Egg laying depends on a number of factors. The diet should contain sufficient protein and a good vitamin(vitamin E)/mineral (calcium)balance. There is also the factor lighting. There may be 14 hours of light. The pigeon may not be too fat. When all these things are ok and the pigeon still doesn’t lay there may be a problem with the genital system of the pigeon (infection of the oviduct). Parasites and bacterial infections (Salmonella,Coli) must be excluded.
Kind regards
Dear Sir,
Problems with the fertility in older cocks are seen very frequently, and sometimes there is something to do about it, sometimes it is possible it is over and out.
First of all I should try to couple the cock during the best weather circumstances. Fe Here in Belgium I should couple him during april / may (the spring), because at that time the quality of the semen will be at the top. If it is possible couple him with some routined hens. Giving extra vitamins like Vit E and selenium and so could be a usefull help. Injections or tablets with hormonal products are sometimes usefull, depending on the problem. If there is an opportunity to test the semen, this could be of great value in order to give some more information about the possibilities of the cock.
Dont hesitate to contact me for more information,
Regards
Dear Madam/Sir,
Try perhaps to separate the birds temporary (f.e. for one week) and then put them back together. Also give the birds nesting material. Unfortunately it is already getting late in the year (unless you are in the southern hemisphere of our planet). It could well be with these kind of pigeons they will only start laying next spring.
Kind regards
Dear Madam/Sir,
Indeed enrofloxacine is not indicated just before the coupling of the birds and causes these clear eggs. It strongly influences the sperm quality. The second round however should not be a problem. I suspect also another cause for the infertility. As the birds are already 10 years it could just be old age. Sometimes the spring and summer time is good to make them fertile again, mostly temporary. How long a pigeon is fertile, can depend a lot on the pigeon strain and individual health.
Kind regards
Dear Madam/Sir,
You should give the birds grit and minerals daily. Do the birds have enough sunlight? It is possible the birds haven't got enough vitamin D which is made in the skin under influence of sunlight. If the birds don't have enough sunlight, you could administer extra vitamin D.
Kind regards
Dear Madam/Sir,
There is a difference if there is an egg made already or not. If not, it has no use in administering oxytocin. If she appears to get ready to lay her egg but isn't capable to (in that case you can often feel the egg), it would probably be better to treat her with antibiotics. In the majority of cases a uterus infection is the cause of the problem. An X-ray and/or endoscopy could give a more accurate diagnosis.
Consider that not all hens are easy breeders and some tend to take longer to lay eggs.
Kind regards
Dear Madam/Sir,
Your suspicion of Salmonella is probably correct, but nevertheless an autopsy could give more clarity and/or another diagnosis. In case of Salmonella I would treat all your birds and vaccinate them twice with four weeks in between.
Kind regards
Dear Sir,
There is a big chance from what you describe she has an infection on her ovary duct and more specifically in the region the calcium layer around the egg is produced. This can be caused by some bacteria like salmonella, streptococcus, E. coli. There is also a possibility there is a tumoral problem so it doesn't always have to be an infectious problem. Nevertheless in practice it is almost always an infectious problem. Depending on the bacteria it can be more or less infectious for other birds on the loft. Always be alert for the paratyphus problem (salmonella). Bacteria can be treated with antibiotics. For salmonella enrofloxacine is mostly very effective, but it is advisable to choose your treatment in accordance with your vet.
Kind regards
Dear Sir,
This is indeed not normal. Allthough there is no indication for disease as the birds are active and have good droppings, I would nevertheless advise to let your birds be examined by your vet and take samples for the most common diseases. In case of egg laying problems especially paratyphus, streptococcus and E. coli could be a problem. But in any case a general clinical exam could bring some clarity. Also make sure the birds get enough minerals (calcium) and protein.
Kind regards
Dear Sir,
This could be a serious problem. If it's a young hen, most of the time egg binding is caused by infectious agents like paratyphus, streptococcus, E. coli which causes inflammation of the oviduct. It is advisable to start an individual antibiotic cure after a veterinary examination and put the hen in quarantaine. In a lot of cases the egg just comes off. In some cases the hen has to be injected with oxytocine by the vet. Sometimes even surgery is necessary.
Kind regards
Dear Sir,
There are multiple causes for infertility with male birds. First of all one should never exclude infectious diseases like paratyphoid, streptococcus, E. coli septicaemia. Therefore a good examination by a (pigeon) vet is very important. The pigeons should be free of the most common infectious diseases and should be treated and / or vaccinated for important bacterial infections depending on the (probable or exact) diagnosis.
Off course when a male bird gets older there is a bigger possibility his hormone system will start to fail. In that case a hormone injection can be of some help. Also it is important an older male pigeon keeps having contact with females (at least he should be able to see and hear females) so testicles keep producing testosteron. It is normal for a bird that the testicles in the winter go in regression and produce less testosteron (this depends on daylenght and contact with females). In older pigeons it can occur that the testicles don't become really "active" anymore which means that the bird stops producing spermatozoïds or they are of much less quality.
Some older males can just have some arthritis on joints and have difficulties with the mating act itself. Than just cutting the tail feathers can be enough.
Kind regards
Dear Sir,
It is not possible for a hen of three years old to be "out of eggs" (no more ripe follicles). There is probably another cause for her infertility.
Did she ever lay eggs?
Kind regards
We see inferior egg shells by problems in the sex apparatus (ovary/fallopian tube) of the hen. But also by a deficiency of calcium which is necessary for making the shell! In individual cases we often see problems in the area of the sex apparatus by older hens or by very young hens who lay their first egg. It is usually due to wear and tear by old hens. With perfect conditions (perfectly healthy, warm weather, enough grit…) they may lay a good egg. In general, she is no longer fit for breeding and can better be replaced by a young, vital hen. A very young hen can also have problems with her first egg.
The fallopian tube doesn't yet function optimally! This usually results in an egg with a bad shell or in a nest with only one egg. The problem is usually over with the second nest. Some infections affect the sex apparatus (e.g.. paratyphoid). We then see a more general problem in the loft. Various pigeons don't lay, or lay inferior, deformed eggs.
We then generally see other symptoms of the sickness. The forming of the egg in the fallopian tube and the laying of the egg requires a great deal of effort from the pigeon, and this shouldn't be underestimated. Therefore you should make sure that your pigeons are not to fat and are free of disease at the start of the breeding season. Give the pigeons plenty of grit so that the hen doesn't have to rely on her own calcium reserves. No calcium means no shell! In your case, it is a general problem. I think it would be wise to let your vet examine your pigeons (to rule out sickness and to judge the general condition).
Minderwaardige eischalen zien we bij problemen ter hoogte van het geslachtsapparaat (eierstok/eileider) van de duivin. Maar ook bij een tekort aan bouwstenen die nodig zijn voor de aanmaak van de schaal! Problemen t.h.v. het geslachtsapparaat bij individuele gevallen zien we vaak bij oudere duivinnen of bij erg jonge duivinnen die hun eerste ei leggen. Bij oude duivinnen wijst dit op slijtage. Onder perfecte omstandigheden (perfect gezond, warm weer, voldoende grit…) legt ze misschien nog eens een volwaardig ei. In het algemeen is ze niet meer inzetbaar voor de kweek en vervang je haar best door een jonge vitale duivin. Zo een jonge duivin kan bij het leggen van haar eerste ei ook problemen hebben. De eileider functioneert dan nog niet optimaal!
Dit uit zich meestal in een ei met slechte schaal of in een nestje met slechts één ei. Bij een tweede nestje is dit probleem meestal voorbij. Sommige infecties tasten het geslachtsapparaat aan (bv. paratyfus). Hierbij zien we meer een algemeen probleem op het hok. Verschillende duiven leggen niet of hebben minderwaardige, misvormde eieren. Vaak zien we ook andere symptomen van de aandoening.
Het vormen van het ei in de eileider en het leggen ervan vereisen een niet te onderschatten inspanning van de duivin. Zorg daarom dat uw duiven niet te vet en vrij van ziektes zijn bij de start van het kweekseizoen. Verschaf voldoende grit zodat de duivin niet enkel beroep moet doen op haar eigen calciumreserves. Geen bouwstoffen is geen schaal! Bij u gaat het over een algemeen probleem. Het lijkt me verstandig om uw duiven te laten controleren door uw dierenarts (uitsluiten ziektes en beoordeling algemene toestand).