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Results: 2018 General Health Survey


Reproduction

Conditions listed in the Reproduction category were reported in 14% (163) of 1,171 surveys completed across all breeds/varieties.
 
Considering the entire population surveyed:
  • No significant issues were observed at the level of individually reported results. Those interested should refer to the 2017 Breeder’s Survey for more information on reproduction in these breeds/varieties.
  • When survey data is restricted to females who were not spayed before 6 months of age, 15.9% of all breeds/varieties covered by this survey experienced an observable false pregnancy.*  
    • Reports varied widely by breed/variety, from a low of 5.6% of eligible female Toy Manchesters to 12.9% of English Toy Terriers, 16.1% of Standard Manchesters and 23.8% of Manchester Terriers (UK/FCI).
 
*Please note: There is no indication that false pregnancy represents a health risk, this information is presented as a data point only. 

Conditions

The following conditions are referenced below in the analysis for this section. The explanation for each disease/condition provided in the survey is included for reference:


  • Abortion--spontaneous
  • Cryptorchidism (no testicles descends)
  • Monorchidism (only one testicle descends)
  • Dystocia (ineffective contractions during labour)
  • Eclampsia/Toxemia (toxic pregnancy)
  • False Pregnancy
  • Hermaphroditism (presence of gonadal tissue for both sexes)
  • Infertility-female
  • Infertility-male
  • Inguinal Hernia (an outpouching of skin in the area of the inguinal ring such as a scrotal hernia)
  • Mastitis (infection of the mammory glands)
  • Pyometra (infection of the uterus, often caused by hormonal changes related to estrus or heat cycles)
  • Metritis (bacterial infection of the uterus, following birth, abortion or breeding; often associated with retained fetuses or placentas)
  • Umbilical Hernia (protrusion of the abdominal lining, abdominal fat or a portion of the intestine through the area around the "belly button")
  • Umbilical Hernia (protrusion of the abdominal lining, abdominal fat or a portion of the intestine through the area around the "belly button")

Toy Manchester Terriers
​Reproduction conditions reported in Toy Manchester Terriers included nine cases of False Pregnancy (3%), five cases each of Monorchidism and Pyometra (1.6%), two cases each of Spontaneous Abortion and Infertility-female (0.7%), and one case each of Mastitis and Umbilical Hernia (0.3%).

In the ‘other’ section, owners reported:
  • One female who gave birth prematurely;
  • One female with irregular seasons; and,
  • One female “born with only one reproductive horn and one kidney. The one horn that she had was filled with fluid, one ovary was formed normal and the other was floating not attached to anything”.
Looking more closely at reports of observable false pregnancy, when survey data is limited only to eligible dogs (i.e., females who were not spayed before 6 months of age), the reported rate is 5.6% (9 of 162). There is no indication that false pregnancy represents a health risk, this information is presented as a data point only.


Standard Manchester Terriers
Reproduction conditions reported in Standard Manchester Terriers included 14 cases of False Pregnancy (7.5%), two cases each of Monorchidism  and Umbilical Hernia (1.1%), Infertility-female, Infertility-male and Mastitis (0.5%).
 
In the ‘other’ section, owners reported:
  • One female who lost a litter with “midline defects”
 
Looking more closely at reports of observable false pregnancy, when survey data is limited only to eligible dogs (i.e., females who were not spayed before 6 months of age), the reported rate is 16.1% (14 of 87).  There is no indication that false pregnancy represents a health risk, this information is presented as a data point only. 

Manchester Terriers (UK/FCI)
Reproduction conditions reported in Manchester Terriers included 60 cases of False Pregnancy (13.3%),  11 cases of Umbilical Hernia (2.4%), eight cases of Pyometra (1.8%), three cases each of Dystocia, Infertility-female and Masititis (0.7%), two cases of Monorchidism (0.4%), and one case each of Inguinal Hernia (0.2%).  
 
In the ‘other’ section, owners reported:
  • One female with vaginitis

Looking more closely at reports of observable false pregnancy, when survey data is limited only to eligible dogs (i.e., females who were not spayed before 6 months of age), the reported rate is 23.8% (60 of 252).  There is no indication that false pregnancy represents a health risk, this information is presented as a data point only.
 
Associated Deaths
One Manchester Terrier death was attributed to Reproductive causes, with a female dying at age three from an anesthetic reaction during a cesarean section.

English Toy Terriers
Reproduction conditions reported in English Toy Terriers included 15 cases of False Pregnancy (6.6%),  five cases of Pyometra (2.2%), two cases each of Spontaneous Abortion and Monorchidism (0.9%), and one case each of Chryptorchidism, Infertility-female, Infertility-male, and Mastitis (0.4%).  
 
Looking more closely at reports of observable false pregnancy, when survey data is limited only to eligible dogs (i.e., females who were not spayed before 6 months of age), the reported rate is 12.9% (15 of 116).  There is no indication that false pregnancy represents a health risk, this information is presented as a data point only. 
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