PubAg
Main content area
Limit your search
- Citation in PubAg12,392
- Full Text1,143
- dairy cows12,191
- milk4,480
- Holstein4,203
- lactation3,398
- milk yield3,165
- more Subject »
Search
13,535 Search Results
« Previous |
1 - 20 of 13,535
|
Next »
Search Results
- Author:
- Michael S. Cockram
- Source:
- Applied animal science 2021 v.37 no.3 pp. 334-352
- ISSN:
- 2590-2865
- Subject:
- auctions; farms; industry; lameness; markets; slaughter
- Abstract:
- ... The purpose of this invited review was to identify and discuss (a) the welfare issues that can occur when cull dairy cows are sent for slaughter, (b) factors that can affect the occurrence and severity of these issues and how they relate to on-farm management decisions, (c) measures that can mitigate these issues, and (d) proposals to improve the welfare of cull dairy cows.Peer-reviewed ...
- DOI:
- 10.15232/aas.2021-02145
- https://doi.org/10.15232/aas.2021-02145
- Author:
- B. Foris; H.-G. Haas; J. Langbein; N. Melzer
- Source:
- Journal of dairy science 2021 v.104 no.3 pp. 3485-3494
- ISSN:
- 0022-0302
- Subject:
- dairy cows, etc ; dairy science; sires; social networks; social support; Show all 5 Subjects
- Abstract:
- ... Regrouping is common practice when managing dairy cow groups, and it is known to have disruptive effects on behavior and production. The presence of a small group of familiar cows upon regrouping may provide social support and mitigate some of the negative effects. In this study we investigated (1) how regrouping affects social relationships among familiar cows and (2) if cows prefer familiar ...
- DOI:
- 10.3168/jds.2020-18896
- https://doi.org/10.3168/jds.2020-18896
- Author:
- D. M. Golher; B. H. M. Patel; S. H. Bhoite; M. I. Syed; G. J. Panchbhai; P. Thirumurugan
- Source:
- International journal of biometeorology 2021 v.65 no.4 pp. 617-625
- ISSN:
- 0020-7128
- Subject:
- ambient temperature; bioclimatology; body size; diet; digestion; feed intake; humidity; metabolism; milk production; reproduction; thermoregulation; wind speed
- Abstract:
- ... status in feed and body reserves. Water intake in dairy cows is influenced directly or indirectly by several factors; direct factors include animal-related factors such as breed, body size, physiological stage, age, health, stress, and ecological adaptations and environmental factors, viz., season of the year, environmental temperature, humidity, wind speed, and precipitation. These factors ...
- DOI:
- 10.1007/s00484-020-02038-0
- https://doi.org/10.1007/s00484-020-02038-0
- Author:
- S.G. Moore; V. Aublet; S.T. Butler
- Source:
- Theriogenology 2021 v.160 pp. 90-94
- ISSN:
- 0093-691X
- Subject:
- automation; body condition; estrus; lactation; milk; milk yield; pregnancy; tail
- Abstract:
- ... , measured using a mount detector (FlashMate; Farmshed Labs) and an accelerometer-based activity monitor (Moomonitor, Dairymaster), to examine the relationship between estrous behaviour measured by both devices, and to examine the characteristics associated with pregnancy per AI. Four hundred and sixty eight lactating dairy cows managed on three research farms were enrolled and data were available from 465 ...
- DOI:
- 10.1016/j.theriogenology.2020.11.002
- https://doi.org/10.1016/j.theriogenology.2020.11.002
- Author:
- Cassandra B. Tucker; Margit Bak Jensen; Anne Marie de Passillé; Laura Hänninen; Jeffrey Rushen
- Source:
- Journal of dairy science 2021 v.104 no.1 pp. 20-46
- ISSN:
- 0022-0302
- Subject:
- dairy cows, etc ; animal welfare; concrete; estrus; free stalls; heat; lameness; milk production; motivation; parturition; pastures; risk; tie stalls; Show all 13 Subjects
- Abstract:
- ... Adequate time lying down is often considered an important aspect of dairy cow welfare. We examine what is known about cows' motivation to lie down and the consequences for health and other indicators of biological function when this behavior is thwarted. We review the environmental and animal-based factors that affect lying time in the context of animal welfare. Our objective is to review ...
- DOI:
- 10.3168/jds.2019-18074
- https://doi.org/10.3168/jds.2019-18074
- Author:
- Lisa Ekman; Ann Nyman; Karin Persson Waller
- Source:
- Journal of dairy science 2021 v.104 no.3 pp. 3532-3546
- ISSN:
- 0022-0302
- Subject:
- copper; dermatitis; hock; hygiene; longitudinal studies; milk; models; pathophysiology; regression analysis; udders; zinc
- Abstract:
- ... Udder cleft dermatitis (UCD) is a common skin problem in dairy cows, localized at the fore udder attachment or between the udder halves. The main objectives of this study were to investigate spontaneous recovery from UCD in a longitudinal study and to investigate the treatment effect on UCD of a topical spray containing chelated copper and zinc in an additional treatment trial. Spontaneous ...
- DOI:
- 10.3168/jds.2020-19046
- https://doi.org/10.3168/jds.2020-19046
- Author:
- M. Spanghero; Z.M. Kowalski
- Source:
- Journal of dairy science 2021 v.104 no.7 pp. 7725-7737
- ISSN:
- 0022-0302
- Subject:
- creatinine; dairy science; feces; meta-analysis; milk; models; nitrogen balance; regression analysis; urine; volatilization
- Abstract:
- ... Nitrogen balance (NB) experiments allow calculation of N retention in the body by subtracting N excreted in feces (NF), urine (NU) and milk (NM) from N intake (NI). In a previous study, we found that NB data from experiments with lactating dairy cows were generally high and, in the current meta-analysis, we update our earlier study with experiments from the last 2 decades and investigate probable ...
- DOI:
- 10.3168/jds.2020-19656
- https://doi.org/10.3168/jds.2020-19656
- Author:
- Luciano S. Caixeta; Bobwealth O. Omontese
- Source:
- Animals 2021 v.11 no.2 pp. -
- ISSN:
- 2076-2615
- Subject:
- dairy cows, etc ; colostrum; early lactation; fetal development; milk; pregnancy; Show all 6 Subjects
- Abstract:
- ... The peripartum period of a dairy cow is characterized by several physiological and behavioral changes in response to a rapid increase in nutrient demands, to support the final stages of fetal growth and the production of colostrum and milk. Traditionally, the transition period is defined as the period 3 weeks before and 3 weeks after parturition. However, several researchers have argued ...
- DOI:
- 10.3390/ani11020352
- https://doi.org/10.3390/ani11020352
- Author:
- Artur Burmańczuk; Beata Wojciechowska; Małgorzata Gbylik-Sikorska; Anna Gajda; Włodzimierz Markiewicz; Ewa Sosin; Tomasz Grabowski
- Source:
- Annals of animal science 2021 v.21 no.2 pp. 485-496
- ISSN:
- 2300-8733
- Subject:
- baicalin; computer software; mammary glands; milk; myeloperoxidase; pharmacodynamics; pharmacokinetics; somatic cell count; tandem mass spectrometry; therapeutics; ultra-performance liquid chromatography
- Abstract:
- ... of baicalin tolerability after intramammary (IMM) administration and its impact on somatic cell count (SCC) after multiple IMM treatment on dairy cows with clinical mastitis. Moreover, the determination of baicalin in milk was performed by the sensitive ultra-high performance liquid chromatography with tandem mass spectrometry. The pharmacokinetic analyses were performed using Phoenix® WinNonlin® 6.4 ...
- DOI:
- 10.2478/aoas-2021-0019
- https://doi.org/10.2478/aoas-2021-0019
- Author:
- Jesus A. C. Osorio; João L. P. Daniel; Jakeline F. Cabral; Kleves V. Almeida; Karoline L. Guimarães; Micheli R. Sippert; Jean C. S. Lourenço; Francilaine E. De Marchi; João P. Velho; Geraldo T. Santos
- Source:
- Animals 2021 v.11 no.5 pp. -
- ISSN:
- 2076-2615
- Subject:
- dairy cows, etc ; Bixa orellana; Holstein; antioxidant activity; digestibility; fatty acid composition; feed intake; lactose; linseed oil; medium chain fatty acids; milk; milk fat; milk yield; omega-3 fatty acids; short chain fatty acids; Show all 15 Subjects
- Abstract:
- ... This study aimed to evaluate the effects of annatto seeds, linseed oil and their combination on DMI, apparent total tract digestibility, antioxidant capacity and milk composition of dairy cows. Four lactating Holstein cows (120 ± 43 days in milk; 15.98 ± 2.02 kg of milk/day, mean ± SD) were allocated in a 4 × 4 Latin square with a 2 × 2 factorial arrangement (with or without annatto seeds at 15 g ...
- DOI:
- 10.3390/ani11051465
- https://doi.org/10.3390/ani11051465
- Author:
- Julia Brennecke; Ulrike Falkenberg; Nicole Wente; Volker Krömker
- Source:
- Animals 2021 v.11 no.2 pp. -
- ISSN:
- 2076-2615
- Subject:
- Escherichia coli; Limulus amebocyte lysate assay; bacteremia; bacterial growth; blood; blood sampling; milk; population size; therapeutics
- Abstract:
- ... The objective of this study was to investigate the occurrence of bacteremia in dairy cows with severe mastitis. Milk samples were collected from affected udder quarters, and corresponding blood samples were collected from dairy cows with severe mastitis at the time of diagnosis before any therapeutic measures were undertaken. The cultural detection of pathogens in blood classified a bacteremia ...
- DOI:
- 10.3390/ani11020410
- https://doi.org/10.3390/ani11020410
- Author:
- J. Salau; J. Krieter
- Source:
- Biosystems engineering 2021 v.205 pp. 146-151
- ISSN:
- 1537-5110
- Subject:
- Holstein; barns; herds; loose housing; time series analysis; Germany
- Abstract:
- ... A loose-housing barn in Northern Germany with thirty-six Holstein Friesian dairy cows was fully monitored by video cameras. The barn was partitioned into the areas for lying cubicles, moving area, licking stone, cow brush, feeding and water troughs. From automatically detected cow activity, the cows’ proportional usage of the resources associated with these areas was determined. The resulting ...
- DOI:
- 10.1016/j.biosystemseng.2021.03.005
- https://doi.org/10.1016/j.biosystemseng.2021.03.005
- Author:
- S.T. Gao; D.D. Girma; M. Bionaz; L. Ma; D.P. Bu
- Source:
- Journal of dairy science 2021 v.104 no.1 pp. 1053-1072
- ISSN:
- 0022-0302
- Subject:
- Holstein; RNA; adipokines; amino acid metabolism; amino acids; beta oxidation; bioinformatics; cell proliferation; cholesterol metabolism; dairy science; energy; gluconeogenesis; glucose; lactation; lipids; lipogenesis; liver; microarray technology; mitochondria; peroxisome proliferator-activated receptors; pregnancy; protein synthesis; transcriptomics; xenobiotics
- Abstract:
- ... The transition from pregnancy to lactation is the most challenging period for high-producing dairy cows. The liver plays a key role in biological adaptation during the peripartum. Prior works have demonstrated that hepatic glucose synthesis, cholesterol metabolism, lipogenesis, and inflammatory response are increased or activated during the peripartum in dairy cows; however, those works were ...
- DOI:
- 10.3168/jds.2020-19101
- https://doi.org/10.3168/jds.2020-19101
- Author:
- L.M.E. Mammi; D. Cavallini; M. Fustini; I. Fusaro; M. Giammarco; A. Formigoni; A. Palmonari
- Source:
- Journal of dairy science 2021 v.104 no.1 pp. 750-761
- ISSN:
- 0022-0302
- Subject:
- dairy cows, etc ; Holstein; albumins; aryldialkylphosphatase; body weight; creatinine; dairy science; dystocia; ferroxidase; inflammation; lactation; metabolism; milk; risk; rumination; vitamin A; Show all 16 Subjects
- Abstract:
- ... Difficult calving may adversely affect dairy cow health and performance. Maternal:fetal disproportion is a major cause of dystocia. Therefore, the main objective of this study was to assess the effects of dam:calf body weight ratio (D:C) on calving difficulty, rumination time, lying time, and inflammatory profile in 25 Holstein dairy cows. Using automatic monitoring systems, we monitored behavior ...
- DOI:
- 10.3168/jds.2020-18867
- https://doi.org/10.3168/jds.2020-18867
- Author:
- Yang Zhou; Wei Jin; Fei Xie; Shengyong Mao; Yanfen Cheng; Weiyun Zhu
- Source:
- Animal 2021 v.15 no.7 pp. 100259
- ISSN:
- 1751-7311
- Subject:
- dairy cows, etc ; Holstein; blood flow; choline; choline chloride; fermentation; fistulated animals; genes; methane production; methanogens; milk; nitroglycerin; quantitative polymerase chain reaction; trimethylamine; Show all 14 Subjects
- Abstract:
- ... A considerable amount of trimethylamine (TMA) is likely generated in the rumen; however, its metabolism is still unclear. This study aimed to investigate the role of Methanomassiliicoccales (Mmc) in TMA metabolism in the rumen of dairy cows. Three experiments, two rumen in vitro fermentation trials and one dairy cow in vivo trial, were conducted. Four groups were set in Experiment 1: control ...
- DOI:
- 10.1016/j.animal.2021.100259
- https://doi.org/10.1016/j.animal.2021.100259
- Author:
- Jashim Uddin; Clive J.C. Phillips; Mathieu Auboeuf; David M. McNeill
- Source:
- Applied animal behaviour science 2021 v.241 pp. 105359
- ISSN:
- 0168-1591
- Subject:
- animal behavior; anxiety; body temperature; flight; head; humidity; lactation; milk; somatic cells; tail
- Abstract:
- ... The welfare of dairy cows is sometimes compromised by anxiety that could be indicated by changes in body temperature. We hypothesized that there was an association between external body surface infrared temperature (IRT) of lactating cows and behavioural responses to anxiety, using rectal temperature as a reference point. Approximately 50 cows were examined individually once a month for 3 ...
- DOI:
- 10.1016/j.applanim.2021.105359
- https://doi.org/10.1016/j.applanim.2021.105359
- Author:
- T.C.F. Carvalho-Sombra; D.D. Fernandes; B.M.O. Bezerra; D.C.S. Nunes-Pinheiro
- Source:
- Veterinary and Animal Science 2021 v.11 pp. 100165
- ISSN:
- 2451-943X
- Subject:
- dairy cows, etc ; California mastitis test; albumins; bilirubin; biomarkers; blood sampling; correlation; leukocytes; malondialdehyde; mammary glands; mastitis; milk; protein content; somatic cell count; somatic cells; standard deviation; Show all 16 Subjects
- Abstract:
- ... Systemic parameters and its relationship with Somatic Cell Count (SCC) in dairy cows were evaluated. Cows that presented subclinical mastitis (SMC; n = 16) and healthy cows (HC; n = 6) were selected and identified by the California Mastitis Test and SCC in milk. SCC results were logarithmically transformed into somatic cell score (SCS). HC presented SCS 〈 4.32 while SMC presented SCS 〉 4.32. Milk ...
- DOI:
- 10.1016/j.vas.2021.100165
- https://doi.org/10.1016/j.vas.2021.100165
- Author:
- Ebru Karakaya Bilen; Gulnaz Yilmazbas Mecitoglu
- Source:
- Indian journal of animal research 2021 v.55 no.2 pp. 145-149
- ISSN:
- 0976-0555
- Subject:
- animal research; beta-carotene; estrus; estrus detection; insemination; ovulation; pregnancy; prostaglandins; vitamin A
- Abstract:
- ... Beta-(β-) carotene, is the precursor to vitamin A, in particular, has some potential benefits on reproduction. The main objective of this study was to investigate the efficacy of β-carotene administration on fertility following either prostaglandin F₂ alpha (PGF) induced estrus or Ovsynch protocol in lactating dairy cows. Cows with at 47±3 postpartum days were divided into two groups: β-carotene ...
- DOI:
- 10.18805/IJAR.B-1320
- https://doi.org/10.18805/IJAR.B-1320
- Author:
- A. Kok; R.J. van Hoeij; B. Kemp; A.T.M. van Knegsel
- Source:
- Journal of dairy science 2021 v.104 no.2 pp. 1887-1899
- ISSN:
- 0022-0302
- Subject:
- antibiotics; body condition; body weight; decision support systems; early lactation; energy balance; milk; milk production; regression analysis; somatic cell count; therapeutics; trees; udders
- Abstract:
- ... Shortening or omitting the dry period to improve the energy balance in early lactation have the trade-offs of reduction in milk production and loss of opportunity for dry-cow therapy (DCT; i.e., intramammary antibiotic use at dry-off). Customized dry-period strategies (i.e., deciding upon DCT and dry-period length per cow) could mitigate negative effects of short or no dry periods on milk producti ...
- DOI:
- 10.3168/jds.2020-18719
- https://doi.org/10.3168/jds.2020-18719
- Author:
- T.V. Silva; E.B. de Oliveira; J. Pérez-Báez; C.A. Risco; R.C. Chebel; F. Cunha; R. Daetz; J.E.P. Santos; F.S. Lima; K.C. Jeong; K.N. Galvão
- Source:
- Journal of dairy science 2021 v.104 no.8 pp. 8918-8930
- ISSN:
- 0022-0302
- Subject:
- Holstein; ceftiofur; dairy science; ears; economic analysis; economic impact; endometritis; herds; milk; milk yield; pregnancy; regression analysis; subcutaneous injection; Florida
- Abstract:
- ... The objective was to investigate the economic effect of treating dairy cows with metritis using ceftiofur-free acid or leaving them untreated at the time of diagnosis. Cows with a fetid, watery, red-brownish vaginal discharge were diagnosed with metritis (d 0). Data from 875 dairy cows (506 primiparous and 369 multiparous) from 1 herd in northern Florida that had been part of a larger study ...
- DOI:
- 10.3168/jds.2020-19430
- https://doi.org/10.3168/jds.2020-19430