Reproduction

Google Maps location for Dubbo Veterinary Hospital

Dubbo Veterinary Hospital
355 Macquarie St
Dubbo
NSW 2830

Phone:
02 6884 1190



Macquarie Artificial Breeders

For more information on how Macquarie Artificial Breeders can help with Artificial Breeding for Dogs, Cattle, Sheep and Goats please Click Here



  • Dogs

    When you want to breed your dogs, there are a number of different breeding techniques that can be used in order for you to establish the desired pregnancy. That is, where the puppies are the offspring of the sire (father) and dam (mother) you want them to be.

    These techniques include natural mating, vaginal artificial insemination and surgical artificial insemination. Both vaginal and surgical inseminations can be performed with fresh, chilled and thawed frozen semen.

    Dubbo Veterinary Hospital and Macquarie Artificial Breeders can offer the collection, evaluation and processing of dog semen (both chilled and frozen) as well as artificial insemination (both vaginal and surgical) in bitches.

    Dubbo Veterinary Hospital and Macquarie Artificial Breeders have been successfully freezing dog semen and undertaking artificial insemination in dogs with thawed frozen semen for over 20 years.

    Natural Mating

    Obviously, the simplest breeding technique is a natural mating.

    There are however some disadvantages to a natural mating. First of all, the sire and the dam must both be available, and be fertile, it must take place at the right time and they must be prepared to successfully mate. Also there can sometimes be disease risks and even a risk of injury.

    Semen Evaluation

    A thorough semen evaluation can be performed on the selected stud dog to ensure his fertility a week or so before the joining. The quality of the semen, his clinical wellness and libido are all considerations that will contribute to his fertility.

    Correct time of mating or insemination

    Determining the correct timing for mating is essential. Again the simplest method is to put the bitch with the dog. Traditionally this was done day 9, day 11 and day 13 from the start of oestrous, provided the bitch will stand for the male.

    Progesterone Assays and Vaginal Smears

    Although puting the bitch with the dog can be successful, the use of progesterone assays and the evaluation of vaginal smears (cells collected from the vagina of female dog evaluated under a microscope) are used to successfully determine the correct time of mating. This can lead to more successful outcomes with natural mating and is essential when using artificial insemination.

    Fresh semen collection and vaginal artificial insemination

    Occasionally, even when the timing is correct a dog will not be prepare to successfully mate with the bitch. In such circumstances semen can be collected from the dog and the bitch artificially inseminated, usually vaginally, but in some circumstances is done surgically.

    Chilled semen

    If the dog and bitch are not in the same location, in order to achieve a natural mating one of the needs to be transported.

    This can be overcome by using chilled semen, which survives for a number of days. Chilled semen involves collecting semen from the stud dog, then adding an extender before chilling it down to refrigerator temperature. The semen can then be shipped to the bitch and artificially inseminated. Insemination is usually via vaginal insemination, although some veterinarians may use transcervical or even surgical.

    The timing of the collection and shipment is determined by progesterone assays and vaginal smears on the bitch.  It requires significant organisation and logistics, but can allow artificial insemination anywhere in Australia.

    Frozen semen and surgical insemination                                

    Frozen semen allows the preservation of semen. The semen from the dog is collected and processed, before being frozen and stored in liquid nitrogen. Usually one collection can be extended for a number of inseminations with up to 3 being the most common. Frozen semen can be stored for an indefinite period and also shipped to any location provided logistics allow.

    The advantages of freezing semen include: insurance for future breeding if the sire becomes infertile or dies; multiple joinings to bitches at anytime; opportunity to use sires with future generations; export; and reduced risk of transmissible disease of injury.

    At Dubbo Veterinary Hospital and Macquarie Artificial Breeders we use surgical insemination with thawed frozen semen. This will require a general anaesthetic and small incision in the dog’s abdomen.  This gives us the maximum fertility rate and is relatively low risk.

    Semen Storage

    Macquarie Artificial Breeders has been storing semen since 1982. We have dozens of tanks and some semen that has been stored with us for over 30 years. We have dog semen that has been stored with us for over 20 years.

    Transporting Semen

    Macquarie Artificial Breeders has numerous dry shipper tanks that allows us to transport semen all over Australia. We are very experienced and ship semen consignments on a weekly basis.

    Exporting and Importing Semen

    The importation and exportation of semen can require considerable logistics and will require paperwork preparation and import permits as well as the physical collection of the semen from the animal. Macquarie Artificial Breeders has numerous contacts and is able to help organise the exportation and importation of semen.

    Pregnancy Diagnosis

    Pregnancy may be confirmed via an ultrasound around the 4 week mark.

     

     Obstetrics and what to do when your bitch is whelping

    Keep your bitch in a quiet warm room where she feels comfortable.  If you have prepared a whelping box it should have enough room for the bitch and puppies and have a high raised edge so as the puppies cannot escape from the box. One edge may be cut down to enable the bitch to easily enter and leave the box when she needs to.  

    Measuring the body temperature of your bitch is a useful (but not 100% accurate) way of monitoring when your bitch may be due to whelp. It should be measured twice daily, and a drop in temperature may indicate your bitch is due to whelp within the next 12-24 hours. Measuring serum progesterone measurements tends to provide a more accurate assessment of when your dog is due to whelp

    Stage 1 labour begins with the onset of rhythmic contractions within the uterus. These contractions are usually NOT visible externally. The stage is completed when the cervix has dilated fully. Please note that due to the length of the vagina in a dog, the cervix is NOT able to palpated manually.  Stage 1 labour averages 6-12 hours but may last up to 24 hours. During this time your bitch may appear restless, inappetent, may vomit and usually begins nesting or searching for seclusion.

    Stage 2 labour begins with the full dilation of the cervix and expulsion of the puppy from the uterus.

    Stage 3 begins directly after this and involves expulsion of the placenta. In a bitch with more than one puppy,  she will alternate between these two stages until all the pups have been born.  The length of time of these two stages is highly variable.

    Commonly the time of initiation of Stage 2 labour and the birth of the first puppy is 10-30 minutes. Active straining of longer duration than 30 minutes with no sign of a puppy is of concern and you should call the clinic for advice.  It is not unusual for a bitch to deliver several puppies, then rest for a period before beginning stage 2 labour again. If there is any panting, muscle tremors or wobbly legs during this period, you should contact the clinic immediately. In this situation a lag of more than four hours is of concern and as mentioned above, any unproductive straining through this period should not last more than 30 minutes without producing a puppy.

    The placenta generally passes five to fifteen minutes following the birth of your puppy. The bitch may eat the placenta after it has passed. While this is not a problem, it should not be encouraged as vomiting of placental material is common.

    A dystocia is the term for a difficult birth. A successful outcome of live dam and puppies relies on early detection and intervention (if required).

    If in doubt, please always ring sooner rather than later. An abdominal ultrasound may be performed by us to determine if the puppies are under stress and require attention. 

    Here are some golden rules that may help you to make a decision about seeking veterinary advice and/or assistance:

    1. If your bitch does not progress from stage 1 to stage 2 within 6-8 hours
    2. If your bitch is weak, wobbly or shivering
    3. If your bitch is in extreme pain
    4. If you see a dark green vaginal discharge without a puppy being delivered within 30 minutes.
    5. If your bitch is actively straining for more than 30 minutes without producing a puppy
    6. If the puppy is visible through the vulva, but is not progressing within 15-20 minutes

     

    Call us at Dubbo Veterinary Hospital immediately if you believe your dog is in trouble whelping.

    DVH Semen
  • Sheep

    In order to fulfil the breeding objectives of your flock, different breeding techniques can be employed. In essence, the objective of these techniques is to proliferate the genetics of the desired sire and dam as much as possible.

    These techniques include natural mating, laparoscopic artificial insemination with either fresh, chilled or thawed frozen semen and multi ovulation and embryo transfer with either fresh, chilled or thawed frozen embryos.  

    Macquarie Artificial Breeders can offer the collection, evaluation and freezing of ram semen, laparoscopic insemination (fresh, chilled and frozen) and multi ovulation of ewes and transfer of embryos (fresh, chilled and frozen).

    Macquarie Artificial Breeders have been successfully freezing ram semen and undertaking laparoscopic artificial insemination and multi ovulation and embryo transfer of ewes over 30 years.

    Semen Processing                                                                    

    Macquarie Artificial Breeders is able to collect, process and store semen from your rams. We will only process semen that has passed our strict standards.

    Semen can only be processed from rams that have undergone a negative Brucella ovis CFT blood test, a negative Brucella ovis semen culture and a negative Actinobacillus seminis culture.

    Semen will only be passed for use if it has exceeded Macquarie Artificial Breeders strict standards with regard to semen motility, morphology and concentration, resulting in the appropriate number of normal progressively normal spermatozoa.

    Semen Storage

    Macquarie Artificial Breeders has been storing semen since 1982. We have dozens of tanks and some semen that has been stored with us for over 30 years.

    Transporting Semen

    Macquarie Artificial Breeders has numerous dry shipper tanks that allows us to transport semen all over Australia. We are very experienced and ship semen consignments on a weekly basis.

    Exporting Semen

    The exportation of semen can require considerable logistics, health tests and paperwork. Macquarie Artificial Breeders is accredited to collect and facilitate the export of semen to a variety of countries.

    Macquarie Artificial Breeders have been successfully processing, storing, distributing and exporting ram semen for over 30 years.

    Laparoscopic Artificial Insemination

    Laparoscopic artificial insemination is a quick and simple surgical artificial technique, which uses a rigid fibre optic scope through the abdominal wall, to locate the reproductive tract and deposit semen in the lumen of the uterine horn.

    Most laparoscopic artificial insemination utilises thawed frozen semen, after the ewes have been treated with hormones to induct a synchronised oestrous (heat) thus allowing a set time for insemination.

    In addition to using thawed frozen semen, Macquarie Artificial Breeders can offer semen collected from a sire on farm on insemination day and use fresh semen.

    Macquarie Artificial Breeders offer laparoscopic artificial insemination services for operations of any size from 10 to 1000 and can organise a program to suit your individual requirements.

    Macquarie Artificial Breeders have been successfully undertaking laparoscopic artificial insemination of ewes over 30 years. Call us to discuss your breeding program.

    Muliovulation, Uterine Flush and Embryo Transfer

     

    Multiovulation involves treating donor ewes with hormones to substantially increase the number of eggs they produce at a particular time. These are the fertilized through artificial insemination.

    Uterine flushing refers to harvesting these embryos from the donor ewe after 6 days growth.

    After harvesting the Embryos are then transferred to recipient ewes that have been synchronized to the same heat pattern as that of the donor ewe.

    The process has a high degree of technical input and is comprised of a series of events and procedures that all require successful completion if a satisfactory outcome is to be achieved. Appropriate management and attention to detail is a critical ingredient.

    The 'Hands Free' ET centre facility "Carinya" is specially designed to standardise treatment of all donor ewes with nutrition and management. For any given ET program, we have an experienced team consisting of 2 - 3 veterinarians, 1-2 embryologists, 1-2 technicians and 1-3 sheep handling and preparation staff. MAB has an effective freezing method suitable for domestic use and export protocols.

    We undertake a  Chilled program where the donors are run at our ET centre and the recipients are run on your own property. The procedures for the recipients are essentially the same as a run of the mill AI program. On the day of flushing, the embryos are collected, chilled, transported and transferred the same afternoon, or the next day depending on the number of donor ewes.

    Macquarie Artificial Breeders have been successfully undertaking Hands Free ET for over 15 years. Call us to discuss your breeding program.

    DVH Multiovulation
  • Goats

    In order to fulfil the breeding objectives of your flock, different breeding techniques can be employed. In essence, the objective of these techniques is to proliferate the genetics of the desired sire and dam as much as possible.

    These techniques include natural mating, laparoscopic artificial insemination with either fresh, chilled or thawed frozen semen and multi ovulation and embryo transfer with either fresh, chilled or thawed frozen embryos. 

    Macquarie Artificial Breeders can offer the collection, evaluation and freezing of buck semen, laparoscopic insemination (fresh, chilled and frozen) and multi ovulation of does and transfer of embryos (fresh, chilled and frozen).

    Macquarie Artificial Breeders have been successfully freezing buck semen and undertaking laparoscopic artificial insemination and multi ovulation and embryo transfer of ewes over 30 years.

    Semen Processing                                                                   

    Macquarie Artificial Breeders is able to collect, process and store semen from your bucks. We will only process semen that has passed our strict standards.

    Semen will only be passed for use if it has exceeded Macquarie Artificial Breeders strict standards with regard to semen motility, morphology and concentration, resulting in the appropriate number of normal progressively normal spermatozoa.

    Semen Storage

    Macquarie Artificial Breeders has been storing semen since 1982. We have dozens of tanks and some semen that has been stored with us for over 30 years.

    Transporting Semen

    Macquarie Artificial Breeders has numerous dry shipper tanks that allows us to transport semen all over Australia. We are very experienced and ship semen consignments on a weekly basis.

    Exporting Semen

    The exportation of semen can require considerable logistics, health tests and paperwork. Macquarie Artificial Breeders is accredited to collect and facilitate the export of semen to a variety of countries.

    Macquarie Artificial Breeders have been successfully processing, storing, distributing and exporting semen for over 30 years.

    Laparoscopic Artificial Insemination

    Laparoscopic artificial insemination is a quick and simple surgical artificial technique, which uses a rigid fibre optic scope through the abdominal wall, to locate the reproductive tract and deposit semen in the lumen of the uterine horn.

    Most laparoscopic artificial insemination utilises thawed frozen semen, after the does have been treated with hormones to induct a synchronised oestrous (heat) thus allowing a set time for insemination.

    In addition to using thawed frozen semen, Macquarie Artificial Breeders can offer semen collected from a sire on farm on insemination day and use fresh semen.

    Macquarie Artificial Breeders offer laparoscopic artificial insemination services for operations of any size from 10 to 1000 and can organise a program to suit your individual requirements.

    Macquarie Artificial Breeders have been successfully undertaking laparoscopic artificial insemination of does over 30 years. Call us to discuss your breeding program.

    Muliovulation, Uterine Flush and Embryo Transfer

     

    Multiovulation involves treating donor does with hormones to substantially increase the number of eggs they produce at a particular time. These are the fertilized through artificial insemination.

    Uterine flushing refers to harvesting these embryos from the donor doe after 6 days growth.

    After harvesting the Embryos are then transferred to recipient does that have been synchronized to the same heat pattern as that of the donor doe.

    The process has a high degree of technical input and is comprised of a series of events and procedures that all require successful completion if a satisfactory outcome is to be achieved. Appropriate management and attention to detail is a critical ingredient.

    The 'Hands Free' ET centre facility "Carinya" is specially designed to standardise treatment of all donor does with nutrition and management. For any given ET program, we have an experienced team consisting of 2 - 3 veterinarians, 1-2 embryologists, 1-2 technicians and 1-3 sheep handling and preparation staff. MAB has an effective freezing method suitable for domestic use and export protocols.

    We undertake a chilled program where the donors are run at our ET centre and the recipients are run on your own property. The procedures for the recipients are essentially the same as a run of the mill AI program. On the day of flushing, the embryos are collected, chilled, transported and transferred the same afternoon, or the next day depending on the number of donor does.

    Macquarie Artificial Breeders have been successfully undertaking Hands Free ET for over 15 years. Call us to discuss your breeding program.

  • Cattle

    In order to fulfil the breeding objectives of your herd, different breeding techniques can be employed. In essence, the objective of these techniques is to proliferate the genetics of the desired sire and dam as much as possible.

    These techniques include natural mating and artificial insemination.

    Macquarie Artificial Breeders can offer the collection, evaluation and freezing of bull semen and artificial insemination.

    Macquarie Artificial Breeders have been successfully freezing bull semen and undertaking artificial insemination for over 30 years.

    Semen Processing                                                                 

    Macquarie Artificial Breeders is able to collect, process and store semen from your bulls. We will only process semen that has passed our strict standards.

    Semen will only be passed for use if it has exceeded Macquarie Artificial Breeders strict standards with regard to semen motility, morphology and concentration, resulting in the appropriate number of normal progressively normal spermatozoa.

    Semen Storage

    Macquarie Artificial Breeders has been storing semen since 1982. We have dozens of tanks and some semen that has been stored with us for over 30 years.

    Transporting Semen

    Macquarie Artificial Breeders has numerous dry shipper tanks that allows us to transport semen all over Australia. We are very experienced and ship semen consignments on a weekly basis.

    Artificial Insemination

    Artificial insemination is a quick and simple procedure that deposits semen in the lumen of the uterine horn.

    Macquarie Artificial Breeders have been successfully processing, storing, distributing bull semen and undertaking artificial insemination in cows for over 30 years.