SELECTING THE DATE OF MATING IN FARM MINK (NEOVISON VISON) FOR OPTIMIZATION OF REPRODUCTION PERFORMANCE
Journal Title: Folia Pomeranae Universitatis Technologiae Stetinensis Agricultura Alimentaria Piscaria et Zootechnica - Year 2016, Vol 39, Issue 328
Abstract
The aim of this study was to analyse the influence of breeding factors, such as gestation length, age, dates and number of matings, on the female reproductive performance in farmed American mink (Neovison vison). We observed a group of 1372 females, variety Silverblue, in the period from 5 to 24 March (mating season) and from 25 April to 10 May (whelping period). We analysed the reproduction in females aged from 1 to 4 years. Apart from age, the evaluation of reproductive performance included the date of the first mating, number of matings and the length of pregnancy. We analysed the litter size at birth and at weaning, as well as the rate of barren females. The results showed that age, date of mating and the number of matings had a significant impact on the length of pregnancy and reproductive performance of the females. It was found that reproductive performance deteriorates in a longer gestation.
Authors and Affiliations
Hanna SZCZYPUŁKOWSKA, Lidia FELSKA-BŁASZCZYK
Keywords
Related Articles
- EP ID EP411765
- DOI -
- Views 58
- Downloads 0
STRUCTURE AND FLORISTIC DIVERSITY OF THE COMMUNITY CALAMAGROSTIETUM EPIGEJI JURASZEK 1928 WITHIN DIFFERENT BIOTOPES
The aim of the present paper was to determine the structure and floristic diversity of Calamagrostietum epigeji occurring within different biotopes (sand and gravel post-excavation pits, “Gilów” post-flotation waste dump...
THE QUALITY AND AEROBIC STABILITY OF SILAGES FROM A MIXTURE OF LEGUMES WITH GRASSES WITH A CHEMICAL AND MICROBIOLOGICAL ADDITIVES
The best way of preserving wet roughage is ensiling. However, fermentation which is performed improperly can lead to obtaining poor quality silage. The aim of the study was to determine the effect of a chemical preservat...
OXYGRAPHIC EVALUATION OF ACTIVITY OF RESPIRATORY ENZYMES IN BOAR'S SEMEN
In the article advantages of the use of oxygraphic method for metabolic examination of mitochondrial respiratory enzymes in boar spermatozoa were described. Investigations were performed on semen samples taken from 36 bo...
THE EVALUATION OF EFFICACY OF VALBAZEN (PFLIZER) IN THE TREATMENT OF GASTRO-INTESTINAL TRACT PARASITE INVASIONS IN BEEF CATTLE OF WEST POMERANIA
The aim of the study was to evaluate the extensity and intensity of gastro-intestinal parasitic infections in Limousine beef cattle in West Pomerania, Poland, and to assess the efficacy of Valbazen (Pfizer Inc., USA) in...
NUTRITIONAL VALUE OF GRANULATED ADULT DOG FEED
One of the most popular methods of feeding dogs is giving them complete commercial feeds. When a decision is made to feed the dog with a dry food, selection of feed should not be made based on its price but in the first...