Effects of small dose estradiol cypionate after artificial insemination on reproductive performance in Holstein cows

Figures & data

Figure 1. Conception rate in repeated cows after injection of ECP (a ≠ b, P < 0.05).

Table 1. Effect of injection of 1 mg of ECP within 20 ± 1 days after AI service on the proportion of empty cows at pregnancy diagnosis in summer season.

Groups	N	Diagnosis	Empty cows	%
Summer 1	100	55	19	34.5^a
Summer 2	100	43	24	55.8^b

Note: Values in the same column without a common superscript letter are different (P < 0.05).

Table 2. Effect of injection of 1 mg of ECP within 20 ± 1 days after AI service on the proportion of empty cows at pregnancy diagnosis in winter season.

Groups	N	Diagnosis	Empty cows	%
Winter 1	100	58	24	41.4^a
Winter 2	100	43	19	44.2^a

Note: Values in the same column with a common superscript letter not are different (P > 0.05).