Economic comparison of natural service and timed artificial insemination breeding programs in dairy cattle
نویسندگان
چکیده
منابع مشابه
Economic comparison of natural service and timed artificial insemination breeding programs in dairy cattle.
The objective was to compare the costs of natural service (NS) and timed artificial insemination (TAI) as breeding programs for dairy cows. Both programs were directly compared in a field study from November 2006 to March 2008. Reproductive results in that study were similar and served as inputs for this study. A herd budget accounting for all costs and revenues was created. Net cost during the...
متن کاملComparison of artificial insemination and natural service cost effectiveness in dairy cattle.
Reproductive efficiency in the dairy herd is the most important factor for its economic success and a major concern for dairy farmers when using artificial insemination (AI) or natural service (NS). Our objectives were to estimate, compare and analyse the costs associated with breeding cattle by do-it-yourself (DIY) AI and NS and identify the factors that influence them, under typical dairy far...
متن کاملSynchronization of Bos Indicus-influenced Cattle for Timed Artificial Insemination
Developing successful methods for synchronizing estrus and ovulation in cattle has been a major research interest for at least the last 35 yr. Early objectives focused on the control of the corpus luteum (CL) and artificial insemination (AI) relative to estrus. Ultimately, the goal has been to achieve precise synchronization of ovulation so that cattle can be inseminated without regard to estru...
متن کاملEffects of Natural Service and Artificial Insemination Breeding Systems on Pregnancy Characteristics and Weaning Weights
A similar proportion of beef cows and heifers exposed to estrous synchronization (ES) and artificial insemination (AI) became pregnant during the breeding season, compared with females bred via natural service breeding. Females in a breeding system that included ES and AI calved earlier in the calving season, compared with females bred with natural service, but no advantage was present for weig...
متن کاملSustainability of dairy cattle breeding systems utilising artificial insemination in less developed countries - examples of problems and prospects
ICAR Technical Series No 3 In the last two decades total milk production has almost doubled while the heads of cattle have increased by 28 percent in developing countries (FAO, 1999). There is a large variation among regions. The Far East region shows the sharpest production increase, also per capita, while Africa and the Near East show the largest increase in heads of cattle but a continuous d...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 2010
ISSN: 0022-0302
DOI: 10.3168/jds.2009-2789