Evaluation of alternative breeding plans for two indigenous cattle breeds of Ethiopia
Sign Up to like & getrecommendations! Published in 2017 at "Livestock Science"
DOI: 10.1016/j.livsci.2017.09.022
Abstract: Abstract Different breeding strategies targeting two indigenous cattle breeds of Ethiopia (Borana and Horro) were evaluated with the objective of developing appropriate breeding programs that would maximize production and productivity of the breeds maintained on… read more here.
Keywords: milk; genetic gains; age first; cattle breeds ... See more keywords
Evaluation of the effects of sire and dam calving group on age at first calving in Brahman heifers.
Sign Up to like & getrecommendations! Published in 2021 at "Theriogenology"
DOI: 10.1016/j.theriogenology.2021.03.005
Abstract: This study evaluated the possible effects of sire and dam calving groups on age at first calving in Brahman heifers. A total of 570 heifers born between the years 2004 and 2017 were exposed as… read more here.
Keywords: age first; dam calving; calving group; first calving ... See more keywords
Genome-wide scan highlights the role of candidate genes on phenotypic plasticity for age at first calving in Nellore heifers
Sign Up to like & getrecommendations! Published in 2020 at "Scientific Reports"
DOI: 10.1038/s41598-020-63516-4
Abstract: Age at first calving (AFC) plays an important role in the economic efficiency of beef cattle production. This trait can be affected by a combination of genetic and environmental factors, leading to physiological changes in… read more here.
Keywords: age first; genomic regions; first calving; role ... See more keywords
Impact of age at first calving on performance traits in Irish beef herds
Sign Up to like & getrecommendations! Published in 2023 at "Journal of Animal Science"
DOI: 10.1093/jas/skad008
Abstract: Abstract Reducing age at first calving (AFC) has been a challenge in beef herds. There is anecdotal evidence that herd owners choose to calve heifers older because of the perceived consequences of calving heifers at… read more here.
Keywords: age first; parity; first calving; weight ... See more keywords
Relationship Between Age at First Calving and Longevity and Productive Life in Holstein Cows
Sign Up to like & getrecommendations! Published in 2020 at "Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis"
DOI: 10.11118/actaun202068050867
Abstract: The aim of the study was to evaluate the effect of age at first calving on functional traits – longevity and productive life in dairy cows. The survey included 1490 Holstein cows from 5 cattle… read more here.
Keywords: age first; longevity; age; first calving ... See more keywords
Milk recording data indicates the importance of fertility, including age at first calving, on the progression of first lactation cows to second lactation
Sign Up to like & getrecommendations! Published in 2024 at "PLOS ONE"
DOI: 10.1371/journal.pone.0297657
Abstract: Dairy farmers do not recoup the rearing costs incurred from birth to first calving until second lactation but varying proportions of first lactation cows are removed from the herd before second calving. Herein, we used… read more here.
Keywords: first calving; first lactation; lactation cows; milk recording ... See more keywords
Effect of age at first calving and other non-genetic factors on longevity and production traits in Holstein cattle under Vojvodina Province condition, Serbia
Sign Up to like & getrecommendations! Published in 2019 at "Indian Journal of Animal Research"
DOI: 10.18805/ijar.b-1063
Abstract: The effect of age at first calving (AFC) and various non-genetic factors i.e. season of calving, farm and system of housing on longevity and production traits were investigated. Longevity traits were studied using total lifetime… read more here.
Keywords: production; longevity; age first; first calving ... See more keywords
Avaliação genética da idade ao primeiro parto de vacas Pardo-Suíças por meio da análise de sobrevivência
Sign Up to like & getrecommendations! Published in 2017 at "Archivos De Zootecnia"
DOI: 10.21071/az.v66i254.2329
Abstract: The age at first calving from Brown Swiss heifers raised in the Semiarid of Brazil was analyzed as well as, the time until the event by the non-parametric method of Kaplan-Meier and the gamma shared… read more here.
Keywords: idade primeiro; gen tica; tica idade; first calving ... See more keywords
Effect of Age at First Calving on the Reproduction Parameters, Metabolic Profile, and Fatty Acid Composition of Polish Holstein Friesian (PHF) and Crossbreds PHF × Swedish Red (SRB) Cattle
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DOI: 10.3390/metabo14110583
Abstract: Background: The high dairy production of Polish Holstein Friesian (PHF) cows determines high energy requirements in the early stages of lactation. Unfortunately, it is very often difficult to meet this demand through feedstuffs; therefore, homeostasis… read more here.
Keywords: age; first calving; phf; polish holstein ... See more keywords