The gene encoding the MT1 melatonin receptor in sheep has a restriction fragment length polymorphism (RFLP) site to the MnlI enzyme whose incidence is associated to the expression of seasonality in several breeds. The aim of this study was to examine the relationship between this genetic marker and the physiological effects of MT1 receptor gene polymorphism on several seasonal functions in Ile-...

The main objective of this study was to assess the concentration various minerals (Ca, P, Mg, Cu, Zn, Fe) in blood sheep, followed by biochemical analysis order reveal possible associations season and breed. conducted sampling four herds: Suffolk (n=20), Merino Lithuanian blackhead (n=20) Charolaise (n=7). first collection April last one performed February. highest level Ca estimated ewes, lowe...

background: with the increasing concern for health and nutrition, dietary fat has attracted considerable attention. the composition of fatty acids in the diet is important because they are associated with major diseases including cancers, diabetes, and cardiovascular disease. the fatty acid synthase (fasn) and stearoyl-coa desaturase (delta-9-desaturase) (scd) genes affect fatty acid compositio...

Genetic diversity in the Finnsheep breed was analyzed by quantifying the demographic trends, the depth of known pedigree, effective population size, and the amount of inbreeding, as well as identifying candidate rams within the current population for future breeding and conservation purposes. Pedigree records of 148,833 animals with a pedigree completeness coefficient > or =0.60 and born from 1...

background: considering the difference between the rate of multiple ovulation and ovarian activities of different breeds of ewes in different regions, especially out of seasonal breeding condition, finding efficient and effective protocols to induce multiple ovulation out of seasonal breeding would be much appreciated. objectives: this study was conducted to determine fertility and multiple ovu...