English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The precision of estimating populations of atretic and nonatretic antral follicles by sampling 10, 20 and 25% of follicles in serially sectioned ovaries was determined. From records on 18 374 gilt follicles (Data 1), three new data sets (Data 2, 3 and 4, generated by attributing a detection probability of 0.1, 0.2 and 0.25 to each of the follicles, were compared with Data 1. Estimates of the follicular populations obtained from Data 2, 3 or 4 differed from the values of Data 1 only when there were fewer than five follicles of a given size on the ovary. The coefficient of variation of the estimated numbers of follicles from values of Data 1 was below 32 ± 19% for Data 2 and 3 when there were more than 50 follicles in a class. For Data 4, however, it was 8 ± 2% or below except for classes containing less than five follicles. Data 4, but not Data 2 and 3, was as efficient as Data 1 in detecting differences in follicle distribution between breeds, age and type of ovary (P &lt; 0.05), except for follicular classes containing less than five follicles. Thus, follicular populations, as determined by sampling 25% of the total number of follicles, were consistent with the actual distribution if five or more follicles were present in a class. Key words: Follicles, sampling, ovary, gilts

PRECISION OF SAMPLING TECHNIQUES IN DETERMINING MICROSCOPIC FOLLICULAR POPULATION IN GILTS