Zobrazeno 1 - 10
of 97
pro vyhledávání: '"J.S. Clay"'
Associations between dry period length and time to culling and pregnancy in the subsequent lactation
Publikováno v:
Journal of Dairy Science. 104:8885-8900
The association between dry period length (DPL) and time to culling and pregnancy in the subsequent lactation may be important for the economically optimal length of the dry period. Therefore, this study aimed to (1) quantify the association between
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df4ab9e7756b515dfc0a686268ca8217
https://doi.org/10.3168/jds.2021-20119
https://doi.org/10.3168/jds.2021-20119
Publikováno v:
Journal of dairy science. 104(4)
Adverse prenatal environments, such as maternal stress and infections, can influence the health and performance of offspring. Mastitis is the most common disease in dairy cattle, yet the intergenerational effects have not been specifically investigat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::271fd664dabe14e8f8a0e01dc5451f9c
https://pubmed.ncbi.nlm.nih.gov/33612233
https://pubmed.ncbi.nlm.nih.gov/33612233
Publikováno v:
Journal of dairy science. 104(1)
Our objective was to develop predictive models of 305-d mature-equivalent milk, fat, and protein yields in the subsequent lactation as continuous functions of the number of days dry (DD) in the current lactation. In this retrospective cohort study wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5095bcee9d10e99c7995e78f49ccdf74
https://pubmed.ncbi.nlm.nih.gov/33189270
https://pubmed.ncbi.nlm.nih.gov/33189270
Publikováno v:
Livestock Science. 189:8-16
Complex relationships exist between udder susceptibility to mastitis and milk production traits. Identifying causal association between these traits could help to disentangle these complex relationships. The main objective of the study was to use pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc0d3ae20d41bd076aa2f4ba855cf598
https://doi.org/10.1016/j.livsci.2016.04.015
https://doi.org/10.1016/j.livsci.2016.04.015
Publikováno v:
Journal of Dairy Science. 99:1298-1314
Genetic improvement of dairy cattle health through the use of producer-recorded data has been determined to be feasible. Low estimated heritabilities indicate that genetic progress will be slow. Variation observed in lowly heritable traits can largel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b42fb20f827d5837b022b251e50e42e8
https://doi.org/10.3168/jds.2015-9840
https://doi.org/10.3168/jds.2015-9840
Publikováno v:
Journal of dairy science. 101(1)
Ketosis is one of the most frequently reported metabolic health events in dairy herds. Several genetic analyses of ketosis in dairy cattle have been conducted; however, few have focused specifically on Jersey cattle. The objectives of this research i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a75d578691f8ceb025a2d96d94156af
https://pubmed.ncbi.nlm.nih.gov/29128227
https://pubmed.ncbi.nlm.nih.gov/29128227
Publikováno v:
Journal of Dairy Science. 97:3190-3199
Emphasizing increased profit through increased dairy cow production has revealed a negative relationship of production with fitness and health traits. Decreased cow health can affect herd profitability through increased rates of involuntary culling a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6ea07dc8a84c90418df5e0aff0270f6
https://doi.org/10.3168/jds.2013-7543
https://doi.org/10.3168/jds.2013-7543
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Health disorders in dairy cows have a substantial effect on the profitability of a dairy enterprise because of loss in milk sales, culling of unhealthy cows, and replacement costs. Complex relationships exist between health disorders and production t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c44b95f6359f6fa6bbdeca7592e83bf1
http://hdl.handle.net/2158/1258618
http://hdl.handle.net/2158/1258618
Publikováno v:
Journal of Dairy Science. 89:330-336
Producer-recorded clinical mastitis data from 77,791 cows in 418 herds were used to determine the potential for genetic improvement of mastitis resistance using data from on-farm management software programs. The following threshold sire models were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf63069bafb60e229ea42227aa43e3b7
https://doi.org/10.3168/jds.s0022-0302(06)72098-7
https://doi.org/10.3168/jds.s0022-0302(06)72098-7