A survey on several reproductive parameters and common obstetric diseases of indigenous wolf-form dog breed

Abstract

The study was conducted from January 2018 to May 2021, to identify the reproductive
characteristics of the indigenous wolf-form dog breed raised in one Research Station of
Vietnam-Russia Tropical Centre, Ministry of Deference (located in Hoa Lac) and in PDS
Professional Dog Research Center, Faculty of Veterinary Medicine, Viet Nam National
University of Argriculture. The investigation was performed on 60 female dogs with 135
spawning times. The studied results showed that dog body temperature during the estrus
period was increased up to 39.3oC at the days 13th – 14th of this period. For indigenous wolf
form dog breed, age of sexual maturity, length of pregnancy period, number of newborn
puppies per one litter, number of survived newborn puppies after birth per one litter, number
of survived newborn puppies after weaning per one litter, body weight of puppies after birth
and body weight of puppies after weaning were recorded as: 252.43 days, 59.95 days, 6.72 puppies, 6.52 puppies, 6.01 puppies, 0.39 kg and 4.08 kg, respectively. The seasonal factors
did not affect the fertility of this dog breed (with P ≥ 95%). The factors of litter affecting to
the reproductive indicators included the number of survived newborn puppies per litter, birth
weight per newborn puppy, number of weaning puppies per litter. Delivery difficulties, retained
placenta and metritis were common obstetric diseases, in which metritis accounted for the
highest prevalence. In case of metritis, the application of the therapeutic regimen including:
intramuscular injection of ovuprost, intrauterine infusion of lugol 0.1% with cephachlor at
5mg/kg BW dose by diluted in 50 ml distilled water, together with the use of vitamin ADE,
B-complex as health promoters, have given the highest rate of treatment efficacy.