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EFFECT OF PREFREEZE TREATMENT ON THE FERTILIZING CAPACITY OF FROZEN CHICKEN SEMEN.

Author(s) : SEXTON T. J.

Type of article: Article

Summary

THE EFFECTS WERE DETERMINED OF DILUTION RATE, HOLDING TIME AT 278 K (5C), DMSO OF PROCESSED-UNFROZEN AND FROZEN-THAWED SEMEN FROM MATURE WHITE LEGHORNS. FERTILITY WAS HIGHEST WITH UNFROZEN (76 AND 83%) AND FROZEN (14 AND 15%) SEMEN WITH DILUTION RATES OF 1:3 OR 1:5. WHEN SEMEN WAS HELD AT 278 K FOR 0.25, 1, 4, 6 OR 8 HR BEFORE DMSO WAS ADDED, FERTILITY OF FROZEN-THAWED SPERM WAS LOWERED TO LESS THAN 11%, WHEREAS THE LEVEL OF FERTILITY (16%) WAS HIGHEST WITH A HOLDING TIME OF 2 HR. THE DMSO LEVELS OF 4 OR 6% (V/V) SIGNIFICANTLY DEPRESSED FERTILITY OF PROCESSED-UNFROZEN SEMEN, WHEREAS DMSO LEVELS OF 0, 2, OR 6% PROVIDED LESS CRYOPROTECTION THAN THE 4% LEVEL IN WHICH FERTILITY WAS HIGHEST AT 22%. IN ALL TREATMENTS, THE LEVEL OF FERTILITY OF FROZEN-THAWED SEMEN WAS LOWER THAN THAT OF PROCESSED-UNFROZEN SEMEN.

Details

  • Original title: EFFECT OF PREFREEZE TREATMENT ON THE FERTILIZING CAPACITY OF FROZEN CHICKEN SEMEN.
  • Record ID : 1982-0635
  • Languages: English
  • Publication date: 1981
  • Source: Source: Poult. Sci.
    vol. 60; n. 7; 1552-1557; 5 tabl.; ref.
  • Document available for consultation in the library of the IIR headquarters only.

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