ВРЪЗКА НА ПЛОДОВИТОСТТА С ОЦЕНКИТЕ НА ТЕЛЕСНОТО СЪСТОЯНИЕ И ЖИВОТО ТЕГЛО ПРИ ОВЦЕ ОТ ТРАКИЙСКАТА ТЪНКОРУННА ПОРОДА

ПЕТЯ СЛАВОВА, НЕДКА ДИМОВА, ИВЕЛИНА ИВАНОВА, ЖАНА ПЕЕВА, СТАЙКА ЛАЛЕВА, ВАСИЛ ВАСИЛЕВ

Abstract: Study was performed in the Agricultural Institute - Stara Zagora.in the period June 2008 - May 2009.The object o f study were ewes the Thracian Fine-Fleece Breed herd, placed under the equal conditions of rearing and feeding. Five evaluations of body condition score (BCS) are conducted. Along with the assessment of body condition is determined and live weight. In processing the animals were divided into three groups according to type of lambing - I-st - lambing single, II -nd- lambing twins and III-s - barren ewes. Average reproduction performance was definited according to individual body condition score and live weight in separate classes. For variation and statistical analysis of the obtained data was used STATISTICA for Windows software. Results of the study shows that: - Physiological status has a substantial influence on the dynamics of change of BCS and live weight of sheep during the year. It is a significant reduction in live weight and BCS during period after lambing, ewes lambing twins when they lost part of the fat reserves for breeding offspring; - Higher reproduction performance have animals with 3.0 - 3.5 BCS and 51.00-60.0 kg live weight in the period before insemination. Lambing ewes were recovered after the period of lambing and reached body condition that allows next insemination.

Keywords: телесно състояние резулт; живо тегло; репродуктивни показатели; Тракийска тънкорунна порода ат

Date published: 2023-02-14