Assertion: mastiff's period | /r/HasProperty | 58 to 63 days
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text: Yes Litters 5 to 12 puppies at a time Gestation Period 58 to 63 days Health Concerns Canine Hip Dysplasia (CHD), Osteochondrosis Dissecans (OCD), Autoimmune Hypothyroidism, Elbow Dysplasia, Canine Inherited Demyelinative Neuropathy (CIDN)