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Association of natural photoperiod with scrotal circumference, inguinal cutaneous hyperemia, endocrine function and May-June fertility in mature F2 Finnish Landrace X Dorset rams



Association of natural photoperiod with scrotal circumference, inguinal cutaneous hyperemia, endocrine function and May-June fertility in mature F2 Finnish Landrace X Dorset rams



Dissertation Abstracts International, B Sciences and Engineering 46(11): 3657



Scrotal circumference (SC) and body weight were recorded monthly in 64 mature F2 Finnish Landrace X Dorset rams. Rams with the greatest decrease in scrotal circumference between Oct. and Apr. were classified as seasonal; the rest were classified as non-seasonal. Serum concentrations of LH and testosterone were determined before and after 2 infusions of 1 micro g GnRH, 1 h apart.

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Accession: 001533389

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