THE INFLUENCE OF BREED, AGE OF BOARS AND EXPLOITATION SEASON ON THEIR LIBIDO IN CONDITIONS OF THE INSEMINATION STATION
In this study it was defined the influence of breed, age and season on libido of boars exploited in insemination station. It was found that libido of hybrids (Duroc x Pietrain), (Pietrain x Duroc) and PIC is indeed higher than that of pure breed boars Pietrain, Duroc, wbp and pbz. Boars of Pietrain and pbz breed showed changes of sexual activity according to the exploitation season. Libido of boars was significantly higher in summer and autumn. The reaction of breeders to phantom in mention seasons was 2,75 min. The fastest reaction to phantom (2,4 min.) and the indeed shortest time to start ejaculation (4,6 min.) comparing to remaining age groups was shown by boars in ages above 36 months. Specimen in this age group didn’t shown any significant changes in sexual activity in each exploitation season. Received results can find use in practice. The acquaintance of boar’s libido will permit on his rational exploitation and improvement of organization of collecting the semen.
THE INFLUENCE OF THE LIBIDO OF POLISH LARGE WHITE BOARS ON THEIR EJACULATES
SZOSTAK, B., A. APOSTOLOV and J. MARCHEV, 2015. The infl uence of the libido of Polish Large White boars on their ejaculates. Bulg. J. Agric. Sci., 21: 394–398 In the paper the infl uence of the sexual behaviour of Polish Large White boars on the features of their ejaculates was defi ned. The boars taking part in the study were divided into three groups: I – high-libido boars (mounting the dummy within 3 min), II – medium-libido boars (peaceful mounting within 5 min) and III – low-libido boars (mounting the dummy within 10 min). The study found that ejaculate parameters of boars expressing various sexual behaviors were signifi cantly diversifi ed. The boars expressing the highest level of sexual behavior (group I) were characterized by the greatest amount of ejaculate, the greatest number of spermatozoa with progressive motility and the biggest number of insemination doses from one ejaculate. The biggest total number of defective spermatozoa was produced by the gonads of boars expressing the lowest level of sexual behavior – 10.9%, making this group signifi cantly different from groups I and II.
First Insights into the Draft Genome Sequence of the Endophyte Paenibacillus amylolyticus Strain GM1FR, Isolated from Festuca rubra L.
ABSTRACT Paenibacillus amylolyticus strain GM1FR is an endophyte isolated from aerial plant tissues of Festuca rubra L. Here, we report the draft genome sequence (7.3 Mb) of GM1FR containing 6,241 protein-coding genes, some of which are potentially involved in plant growth promotion and biocontrol.