Patterns of Body Condition Use and Its Impact on Fertility
ثبت نشده
چکیده
A total of 60 nulliparous crossbred rabbit females were, a posteriori, divided into 2 experimental groups according to their natural “decision” to conceive or not at day 11 post first parturition (L: solelylactating or LP: lactating-pregnant). This design allowed us to study the evolution of body reserves around first parturition and its influence on the future reproductive success of rabbit females. Primiparous rabbit females that failed to conceive when inseminated at day 11 post-partum (L) seemed to have a higher perirenal fat thickness (PFT) 12 d pre-partum (+0.25 mm; P=0.079) than females that conceived (LP). In the subsequent days, L females showed a significantly higher mobilisation rate than LP females (on av.–0.12 and –0.07 mm of PFT per day, respectively; P=0.007), reaching a lower PFT at partum (5.17 mm vs. 5.62 mm, respectively; P = 0.002). However, due to a greater recovery rate observed in L females (+0.15 vs. +0.08 mm of PFT per day for L and LP females, respectively; P=0.007), PFT at 10 d post-partum was similar (on av. 5.86 mm). These different patterns showed that PFT level at 12 d pre-partum and PFT mobilisation rate onwards seems to drive the start of a new pregnancy. It also seems to modify the energy metabolism of rabbit females, allowing does to recover perirenal fat tissue without compromising the production of milk necessary for the current litter.
منابع مشابه
P-182: Evaluation Type of Complementary and Alternative Medicine and Its Impact in The Treatment of Infertile Couples
Background: Infertility as a crisis in the life of infertile couples led to difficulty in accepting and using treatment. This review aims at studying the forms of complementary medicine and its impact on infertile. Materials and Methods: Study overview, the present internet search at time scales from 1999 to 2013 databases iranian and international iranmedex, EMBASE, Uptodate, Scopus, Science- ...
متن کاملO6: Road Traffic Accidents Lead to Different Patterns of Injuries Depending on Impact, Age and Premedical Condition - Specific Attention Must be Provided by Multi-Disciplinary Trauma-Teams
The approximate number of road traffic accidents that occur in Germany every year is 4.8 million. In 15-25% of these accidents patients die on scene, while about 35,000 severely injured patients are admitted to the resuscitation units of trauma centers in Germany, out of which about 10% do not survive. To continuously observe and improve their treatment and management, polytraumatized patients ...
متن کاملThe Impact of Maternal Age, Pre-Pregnancy Body Mass Index,Weight Gain and Parity on Glucose Challenge Test (GCT)
متن کامل
Integrated assessment of the impact of drought and land use changes on Ground Water (case study: Hamadan-Bahar watershed)
Groundwater drought denotes the condition and hazard during a prolonged meteorological drought when groundwater resources decline and become unavailable or inaccessible for human use. The aim of this study is to identify the influencial factors on groundwater drought in Hamadan- Bahar Watershed,Iran, to understand the forcing mechanisms. The Standardised Precipitation Index (SPI) has been used ...
متن کاملImprovement of Fertility Performance of Farahani Ewes Raised on Supplementary Feeding
This study deals with effects of supplementary feeding on fertility performance of Farahani ewes. The study was conducted using three local flocks in Arak city, Iran. Half ewes in each flock (50 ewes from each flock) were used as control group and fed according to traditional method without supplementary feed. The other half per flock was fed on supplementary feed throughout the experiment that...
متن کاملIntimacy and Reproduction: the Role of Hispanic Groups in American Fertility
This article contributes to the sociological and demographic debate on the development of fertility patterns in contemporary U.S. society. Most industrialized societies are increasingly experiencing low fertility rates, which will amount to a considerable socio-economic challenge in coming decades. In contrast, the U.S. currently has a fertility rate close to replenishment level, which would en...
متن کامل