WebDec 1, 2012 · Frequency of calvings, which averaged 1.5% for twin births and just 0.02% for triplet births, increased with age of cow and also with increasing milk yield in the … WebDec 1, 2012 · Frequency of calvings, which averaged 1.5% for twin births and just 0.02% for triplet births, increased with age of cow and also with increasing milk yield in the preceding lactation. Performance ...
Economics of Twin Pregnancies in Dairy Cattle - MDPI
WebJul 8, 2010 · What percentage of heifers in heifer bull calf twins are able to become pregnant? The common rule of thumb is that 10% of heifers born with a twin brother are fertile, leaving only 90% of heifers ... WebJul 7, 2024 · Advertisement. When a set of twins is born and one is a bull calf and the other is a heifer calf, more than 90% of the time the female is infertile. The infertile female twin is called a freemartin. This happens because early in embryonic development it’s common for the separate embryos to fuse and share the same blood supply. interwrite wireless pad
527. A study of variation in twin cattle: II. Fertility
WebNov 17, 2024 · When a set of twins is born and one is a bull calf and the other is a heifer calf, more than 90% of the time the female is infertile. The infertile female twin is called a freemartin. This happens because early in embryonic development it’s common for the separate embryos to fuse and share the same blood supply. WebMar 4, 2013 · She had four calves in 2009 followed by five calves in 2010, then in 2011, she gave birth to twins before producing another set of quins last month. A sixth calf died. Ger told the BBC the latest ... new healthnet provider login