Seasonality of ovulation and estrus in Border Leicester ewes.

Seasonality of ovulation and estrus in Border Leicester ewes. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Seasonality of ovulation and estrus in Border Leicester ewes. Abstract Text:

D G Hall,I D Killeen,

The number of Border Leicester ewes ovulating and their ovulation rate at 4 to 6 week intervals over 1 year and again after a further year were determined. The proportion of these ewes expressing estrus from autumn to spring and then in late summer/autumn was also determined. None of the ewes ovulated from October to early February, but for the remainder of the year, ovulation rate was always above 1.60, peaking in April to June at over 2.0. Eighty-four percent of the ewes had commenced ovulating by early March. The breeding season continued to September, when 10% of the ewes ovulated, with 25% expressing estrus in August and September. There was no significant effect of age, ewe liveweight or liveweight change on the proportion of ewes ovulating and their ovulation rate. The variability in the length of the breeding season gives scope for further selection.

Seasonality of ovulation and estrus in Border Leicester ewes. Publishing Authors By Initials

DG Hall,ID Killeen,

For similar abstracts research abstracts see: abstracts research

PUBMED ID PMID:

MEDLINE DATE:

Seasonality of ovulation and estrus in Border Leicester ewes. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Theriogenology

VOLUME: 31

Page Numbers: 721-6

Journal Abbreviation: Theriogenology

ISSN: 0093-691X

DAY: 26

MONTH: Mar

YEAR: 1989

Seasonality of ovulation and estrus in Border Leicester ewes. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 421510

Seasonality of ovulation and estrus in Border Leicester ewes. Keywords Mesh Terms:

KEYWORDS:

MESH TERMS:

Chemical & Substance for Abstract: Seasonality of ovulation and estrus in Border Leicester ewes. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for Seasonality of ovulation and estrus in Border Leicester ewes.

AFFILIATION: Department of Agriculture, Agricultural Research Station, Cowra, New South Wales, Australia, 2794.

Country: United States

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: Theriogenology

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Seasonality of ovulation and estrus in Border Leicester ewes Related Publications

• A tool box for operational mosquito larval control: preliminary results and early lessons from the Urban Malaria Control Programme in Dar es Salaam, Tanzania.
• Beyond statistical inference: a decision theory for science.
• Construction and preclinical evaluation of recombinant Peru-15 expressing high levels of the cholera toxin B subunit as a vaccine against enterotoxigenic Escherichia coli.
• Effects of fasting ewes before mating on their reproductive performance.
• Evidence for impulsivity in the Spontaneously Hypertensive Rat drawn from complementary response-withholding tasks.
• Handwriting speed: duration of testing period and relation to socio-economic disadvantage and handedness.
• Microfluidic Gradient Formation for Nanoflow Chip LC.
• Negative automaintenance omission training is effective.
• Reply.
• Seasonality of ovulation and estrus in Border Leicester ewes.
• Spontaneously disappearing lumbar disc protrusion.
• The impact of a pneumatic tube and computerized physician order management on laboratory turnaround time.
• The role of IKs in atrial arrhythmogenesis.
• Tribute to imogene king.