Table 1 Clinical ovarian findings, results of the progesterone level analysis and the final fertility status of polled and horned FV-Polled1 offspring at the end of the observation period.

Animal number	Horn status	Age at the time of the examination (in days)	Clinic (functional structures on the ovaries)	Progesterone	Final fertility status
1	Horned	606	Cl	+	Cyclic
2	Horned	550	n.ex	+	Pregnant
3	Horned	539	Cl	+	Cyclic/pregnant^a
4	Horned	534	n.ex	+	Pregnant
5	Horned	480	Cl	+	Cyclic/pregnant^a
6	Horned	445	None	+	Cyclic/pregnant^a
7	Horned	437	None	+	Cyclic
8	Polled	598	n.ex	n.e	Pregnant
9	Polled	594	n.ex	+	Pregnant
10	Polled	559	None	−	Acyclic/pregnant^a
11	Polled	444	None	−	Acyclic
12	Polled	443	None	−	Acyclic
13	Polled	422	None	−	Acyclic
14	Polled	421	None	+	Cyclic
15	Polled	419	None	−	Acyclic

^aPositive pregnancy diagnosis at the end of the observation period.
Cl corpus luteum, progesterone: + at least one progesterone value > 1.0 ng/ml serum during the 4-week sampling period; − no progesterone value > 1.0 ng/ml serum during the 4-week sampling period; n.ex. not examined, n.e. not evaluable.

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