• Nordisk veterinaermedicin · Mar 1975

    [A.I. in pigs: breeding efficiency of one and two inseminations per heat (author's transl.)].

    • J H Meding.
    • Nord Vet Med. 1975 Mar 1; 27 (3): 161-6.

    AbstractBreeding efficiency as expressed by the 30-60 days non-return percentage by one and two inseminations per heat was compared. Sows and gilts in a good heat (heat detection by stockmen) received only one insemination per heat, whereas females with a moderate/weal heat received two inseminations with an interval of approx. 24 hours, provided they were still in heat at the 2nd visit. The results have been set out in the tables I and II. A total of 89.1 and 90.8 percent non-returns by one and two inseminations per heat have been obtained (table I). The difference of 1.7 percentage units in favour of two inseminations is significant, (P less than 0.001). A variation within technicians of percentage of one insemination per heat from 10-97 was found, table II. 11 technicians had significant better results with two inseminations, one technician with one insemination, and by the rest of technicians no significant differences were found between one and two inseminations per heat. It is concluded that: 1) By effective heat detection, the breeding efficiency which can be obtained by one insemination per heat, is only two percentage lower than the breeding efficiency obtained by two inseminations per heat. 2) This loss in breeding efficiency is probably compensated by the economical advantage of one insemination per heat.

      Pubmed     Copy Citation     Plaintext  

      Add institutional full text...

    Notes

     
    Knowledge, pearl, summary or comment to share?
    300 characters remaining
    help        
    You can also include formatting, links, images and footnotes in your notes
    • Simple formatting can be added to notes, such as *italics*, _underline_ or **bold**.
    • Superscript can be denoted by <sup>text</sup> and subscript <sub>text</sub>.
    • Numbered or bulleted lists can be created using either numbered lines 1. 2. 3., hyphens - or asterisks *.
    • Links can be included with: [my link to pubmed](http://pubmed.com)
    • Images can be included with: ![alt text](https://bestmedicaljournal.com/study_graph.jpg "Image Title Text")
    • For footnotes use [^1](This is a footnote.) inline.
    • Or use an inline reference [^1] to refer to a longer footnote elseweher in the document [^1]: This is a long footnote..

    hide…