EurekaMag.com logo
+ Site Statistics
References:
52,725,316
Abstracts:
28,411,598
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Effect of different periods of flushing and synchronized mating on body weight, blood glucose and reproductive performance in spring-mated ewes






Small Ruminant Research 13(3): 257-261

Effect of different periods of flushing and synchronized mating on body weight, blood glucose and reproductive performance in spring-mated ewes

One hundred and sixty Merino ewes were allocated to four flushing (600 g/ewe/d of an alkali-ionophore-treated maize) groups; the aim being to determine the effect of flushing for different intervals (2 to 4 weeks), prior to and following synchronization, on the reproductive performance. Parameters monitored included body weight, blood glucose concentrations, ovulation rate and reproductive performance. No significant difference in body weight was recorded between groups following treatment. Following the onset of flushing, significantly (P lt 0.01) higher blood glucose levels were immediately recorded in the group receiving flushing from sponge withdrawal for a 2-week interval (3.0 vs. 3.9 mmol/l) and the group receiving flushing from a week prior to sponge withdrawal for an interval of 3 weeks (3.2 vs. 3.9 mmol/l). Flushing did not significantly affect duration of induced oestrus. Ovulation rate following 3 weeks of flushing was significantly higher (P lt 0.01) than in controls and other groups (1.33 vs. 0.5). Fecundity (123%) was also significantly (P lt 0.05) higher in this group. No significant difference in conception and lambing rate between the different treatment groups was recorded. Flushing had a beneficial effect on the overall reproductive performance, and in this trial flushing from a week before sponge withdrawal for a total period of 3 weeks gave best results (lambing rate of 95%). Whether this improved fecundity and lambing rate obtained is economically viable remains speculative.

Accession: 002355086

DOI: 10.1016/0921-4488(94)90073-6

Download PDF Full Text: Effect of different periods of flushing and synchronized mating on body weight, blood glucose and reproductive performance in spring-mated ewes



Related references

Effect of melatonin implants, flushing and teasing on the reproductive performance of spring-mated Dohne Merino ewes. Suid-Afrikaanse Tydskrif vir Veekunde 24(1): 22-26, 1994

Effect of weaning pre- or post-mating on performance of spring-mated ewes and their lambs in New Zealand. New Zealand Journal of Agricultural Research 49(3): 255-260, 2006

Effect of breed of teaser ram on the reproductive performance of spring mated ewes. New Zealand, Ministry of Agriculture and Fisheries Agricultural Research Division Annual Report 1982/83: 32, 1984

The effect of early mating of Polish Lowland ewes on their development and performance. 2. The results of mating and performance of ewes mated in the first year of life. Roczniki Nauk Rolniczych, B 102(3): 47-58, 1984

The effect of supplementary feeding in relation to sward height during the pre mating and post mating periods on reproductive performance of brecon cheviot ewes. Animal Production 46(3): 513, 1988

Reproductive and productive performance in Chios ewes mated in spring or in autumn. Reproduction, Nutrition, Development 38(5): 551-558, 1999

The effect of level of intake prior to and at mating on the reproductive performance of Welsh Mountain and Brecon Cheviot ewes in different levels of body conditioning at mating. Biennial report, 1984-85: 34, 1986

Reproductive performance of synchronized spring and fall bred ewes. Progress report Kentucky Agricultural Experiment Station: (188) 24-25, 1970

Reproductive performance of Pelibuey ewes mated at puberty or on attaining a minimum weight. 1er Congreso Nacional de Produccion Ovina, Mexico, 1988: 129-132, 1988

The effect of body condition and time of mating on the reproductive performance of masham ewes. Animal Production 30(2): 253-260, 1980