Effect of maternal age on milk production traits, fertility, and longevity in cattle. 2004

B Fuerst-Waltl, and A Reichl, and C Fuerst, and R Baumung, and J Sölkner
Department of Livestock Sciences, University of Natural Resources and Applied Life Sciences, Vienna, Gregor Mendel-Strasse 33, A-1180 Vienna, Austria. birgit.fuerst-waltl@boku.ac.at

Longevity is the economically most important functional trait in cattle populations. However, with an increased productive lifespan, the number of offspring born by older dams increases. A higher maternal age might have negative effects on the performance of offspring. The objective of this study was to investigate the effect of maternal age on production (energy-corrected milk yield [ECM]) and functional traits (fertility; somatic cell score, and functional longevity) in Austrian dual-purpose Simmental cows. Age of dam had a significant effect on ECM yield and longevity. The ECM yield of daughters decreased with age of dam. Although the risk of culling slightly increased with age of dam, it was lowest for daughters of oldest dams. Results for fertility were non-significant, and results for somatic cell scores were inconsistent across parities.

UI MeSH Term Description Entries
D007774 Lactation The processes of milk secretion by the maternal MAMMARY GLANDS after PARTURITION. The proliferation of the mammary glandular tissue, milk synthesis, and milk expulsion or let down are regulated by the interactions of several hormones including ESTRADIOL; PROGESTERONE; PROLACTIN; and OXYTOCIN. Lactation, Prolonged,Milk Secretion,Lactations, Prolonged,Milk Secretions,Prolonged Lactation,Prolonged Lactations
D008136 Longevity The normal length of time of an organism's life. Length of Life,Life Span,Lifespan,Life Spans,Lifespans
D008297 Male Males
D008423 Maternal Age The age of the mother in PREGNANCY. Age, Maternal,Ages, Maternal,Maternal Ages
D010298 Parity The number of offspring a female has borne. It is contrasted with GRAVIDITY, which refers to the number of pregnancies, regardless of outcome. Multiparity,Nulliparity,Primiparity,Parity Progression Ratio,Parity Progression Ratios,Ratio, Parity Progression,Ratios, Parity Progression
D011247 Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. Gestation,Pregnancies
D002417 Cattle Domesticated bovine animals of the genus Bos, usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labor. Beef Cow,Bos grunniens,Bos indicus,Bos indicus Cattle,Bos taurus,Cow,Cow, Domestic,Dairy Cow,Holstein Cow,Indicine Cattle,Taurine Cattle,Taurus Cattle,Yak,Zebu,Beef Cows,Bos indicus Cattles,Cattle, Bos indicus,Cattle, Indicine,Cattle, Taurine,Cattle, Taurus,Cattles, Bos indicus,Cattles, Indicine,Cattles, Taurine,Cattles, Taurus,Cow, Beef,Cow, Dairy,Cow, Holstein,Cows,Dairy Cows,Domestic Cow,Domestic Cows,Indicine Cattles,Taurine Cattles,Taurus Cattles,Yaks,Zebus
D004734 Energy Metabolism The chemical reactions involved in the production and utilization of various forms of energy in cells. Bioenergetics,Energy Expenditure,Bioenergetic,Energy Expenditures,Energy Metabolisms,Expenditure, Energy,Expenditures, Energy,Metabolism, Energy,Metabolisms, Energy
D005260 Female Females
D005298 Fertility The capacity to conceive or to induce conception. It may refer to either the male or female. Fecundity,Below Replacement Fertility,Differential Fertility,Fecundability,Fertility Determinants,Fertility Incentives,Fertility Preferences,Fertility, Below Replacement,Marital Fertility,Natural Fertility,Subfecundity,World Fertility Survey,Determinant, Fertility,Determinants, Fertility,Fertility Determinant,Fertility Incentive,Fertility Preference,Fertility Survey, World,Fertility Surveys, World,Fertility, Differential,Fertility, Marital,Fertility, Natural,Preference, Fertility,Preferences, Fertility,Survey, World Fertility,Surveys, World Fertility,World Fertility Surveys

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