Effects of Age of Cow at First calving, Period of Calving and Calving Sequence on Calving Interval of N’dama and Keteku Cattle, and their Crosses in Southwestern Nigeria

dc.contributor.authorAkinokun, O.
dc.coverage.geographicalNigeriaen_US
dc.date.accessioned2015-09-18T08:59:30Z
dc.date.accessioned2018-10-27T13:51:32Z
dc.date.available2015-09-18T08:59:30Z
dc.date.available2018-10-27T13:51:32Z
dc.date.issued1982
dc.departmentAnimal Scienceen_US
dc.description.abstractCalving records of N'darna and Keteku cows on range in the humid tropical environment of southwestern Nigeria were analysed to determine the effects of cow age at first calving, period of calving and calving sequence on length of calving intervals. Cow age at first calving and calving sequence significantly affected calving intervals (P < .01). Heifers calving for the first time at 3.6 - 4 years had an average calving interval of 511 days while heifers calving for the first time before 3.6 years had intervals that were 36 days longer. Those calving for the first time at over four years had average calving intervals that were shorter by 73 days. There was a progressive decrease in length of calving interval as calving sequence increased. Period of calving had no significant effect on length of calving interval.en_US
dc.facultiesAgricultureen_US
dc.format.filetypePDFen_US
dc.identifier.citationAkinokun, O. (1982) Effects of Age of Cow at First calving, Period of Calving and Calving Sequence on Calving Interval of N’dama and Keteku Cattle, and their Crosses in Southwestern Nigeria. Ife Journal of Agriculture, 4(1 & 2).en_US
dc.identifier.urihttp://localhost:8080/xmlui/handle/123456789/2539
dc.language.isoenen_US
dc.pages.totalpages10en_US
dc.publisherFaculty of Agriculture, University of Ifeen_US
dc.subjectCattleen_US
dc.subjectLength of calving intervalen_US
dc.subjectPeriod of calvingen_US
dc.subjectCalving sequenceen_US
dc.subjectCalvingen_US
dc.titleEffects of Age of Cow at First calving, Period of Calving and Calving Sequence on Calving Interval of N’dama and Keteku Cattle, and their Crosses in Southwestern Nigeriaen_US
dc.typeArticleen_US
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