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1. A modified device to place abomasal infusion lines for rumen-cannulated cattle

Author:
L.R. Rebelo; C. Lee
Source:
JDS communications 2022 v.3 no.4 pp. 250-254
ISSN:
2666-9102
Subject:
dairy cows,   etc   ; abomasum; omasum;     Show all 3 Subjects
Abstract:
... A previously developed abomasal infusion device was modified for easy and successful placement of infusion lines into the abomasum of dairy cows. Similar to the original device, the modified device consists of 2 pieces: an insertion tool and a delivery tool. Updates include streamlining both the insertion and delivery tools by slightly altering dimensions and design, then smoothing all rough edges ...
DOI:
10.3168/jdsc.2021-0201

2. Assessing the Accuracy of Leg Mounted Sensors for Recording Dairy Cow Behavioural Activity at Pasture, in Cubicle Housing and a Straw Yard

Author:
Gemma Charlton; Carrie Gauld; Fabio Veronesi; Steven Mark Rutter; Emma Bleach
Source:
Animals 2022 v.12 no.5 pp. -
ISSN:
2076-2615
Subject:
dairy cows,   etc   ; Holstein; pastures; straw;     Show all 4 Subjects
Abstract:
... The accuracy of CowAlert IceQube sensors (IceRobotics Ltd., Edinburgh, UK) for recording lying duration, standing and lying transitions and number of steps when dairy cows where at pasture, in cubicle housing and in a straw yard, was investigated. Holstein Friesian cows at Harper Adams University, UK were fitted with IceQube sensors; one on the back left (BL) leg and one on the front left (FL) leg ...
DOI:
10.3390/ani12050638

3. Detection Method of Cow Estrus Behavior in Natural Scenes Based on Improved YOLOv5

Author:
Rong Wang; Zongzhi Gao; Qifeng Li; Chunjiang Zhao; Ronghua Gao; Hongming Zhang; Shuqin Li; Lu Feng
Source:
Agriculture (Basel) 2022 v.12 no.9 pp. -
ISSN:
2077-0472
Subject:
dairy cows,   etc   ; agriculture; data collection; estrus; lighting; models; prediction;     Show all 7 Subjects
Abstract:
... Natural breeding scenes have the characteristics of a large number of cows, complex lighting, and a complex background environment, which presents great difficulties for the detection of dairy cow estrus behavior. However, the existing research on cow estrus behavior detection works well in ideal environments with a small number of cows and has a low inference speed and accuracy in natural scenes. ...
DOI:
10.3390/agriculture12091339

4. Physicochemical, nutritional, and sensory attributes of Minas frescal cheese from grazing cows fed a supplement containing different levels of babassu coconut (Orbignyaspeciosa)

Author:
Dayana Lima Maciel; Julián Andrés Castillo Vargas; Rafael Mezzomo; Marco Antônio Sundfeld da Gama; Laudi Cunha Leite; Ícaro Rainyer Rodrigues de Castro; Luis Rennan Sampaio Oliveira; Maria Luiza Costa Farias; Werbest Brenner dos Santos Luz; Kaliandra Souza Alves
Source:
International dairy journal 2022 v.127 pp. 105176
ISSN:
0958-6946
Subject:
dairy cows,   etc   ; cheeses; coconuts; milk production; odors; physicochemical properties;     Show all 6 Subjects
Abstract:
... Alternative feeds can reduce milk production costs, but quality attributes of dairy products may also be affected. The physicochemical, sensory, and fatty acid (FA) profiles of Minas frescal cheese produced from grazing cows fed different levels of cracked babassu coconut (CBC) were investigated in the present study. Actual and adjusted cheese yields in kg cow⁻¹ d⁻¹ decreased as CBC levels increas ...
DOI:
10.1016/j.idairyj.2021.105176

5. Biohydrogenation Pathway of α-Linolenic Acid in Rumen of Dairy Cow In Vitro

Author:
Guoxin Huang; Liya Guo; Meiqing Chen; Xufang Wu; Wenhao Tang; Nan Zheng; Shengguo Zhao; Yangdong Zhang; Jiaqi Wang
Source:
Animals 2022 v.12 no.4 pp. -
ISSN:
2076-2615
Subject:
dairy cows,   etc   ; biohydrogenation; diet; ethanol; fermentation; isomers; milk; rumen;     Show all 8 Subjects
Abstract:
... The t9,c12,c15-C18:3 as an isomer of α-linolenic acid (c9,c12,c15-C18:3; ALA), has been recently detected in milk, but has not been found in the rumen. This study hypothesized that it may be a biohydrogenation product of ALA in rumen and aimed to explore whether it was present in the rumen and help to understand the rumen biohydrogenation mechanisms of ALA. The in vitro experiment included two tre ...
DOI:
10.3390/ani12040502

6. Dairy Cow Behavior Is Affected by Period, Time of Day and Housing

Author:
Lisette M. C. Leliveld; Elisabetta Riva; Gabriele Mattachini; Alberto Finzi; Daniela Lovarelli; Giorgio Provolo
Source:
Animals 2022 v.12 no.4 pp. -
ISSN:
2076-2615
Subject:
dairy cows,   etc   ; barns; farm management; farms; microclimate; summer; winter; Italy;     Show all 8 Subjects
Abstract:
... Dairy cow behavior is affected by external and endogenous factors, including time of year, barn microclimate, time of day and housing. However, little is known about the combined effects of these factors. Data were collected on eight farms in Northern Italy during summer, winter and a temperate season. The temperature-humidity index (THI) was recorded using environmental sensors, whereas cow behav ...
DOI:
10.3390/ani12040512

7. The relationships between early lactation energy status indicators and endocrine fertility traits in dairy cows

Author:
P. Mäntysaari; J. Juga; M.H. Lidauer; J. Häggman; T. Mehtiö; J.M. Christensen; E.A. Mäntysaari
Source:
Journal of dairy science 2022 v.105 no.8 pp. 6833-6844
ISSN:
0022-0302
Subject:
dairy cows,   etc   ; early lactation; energy; heat; herds; milk; progesterone; standard deviation;     Show all 8 Subjects
Abstract:
... The relationships between dairy cow milk-based energy status (ES) indicators and fertility traits were studied during periods 8 to 21, 22 to 35, 36 to 49, and 50 to 63 d in milk. Commencement of luteal activity (C-LA) and interval from calving to the first heat (CFH), based on frequent measurements of progesterone by the management tool Herd Navigator (DeLaval), were used as fertility traits. Ener ...
DOI:
10.3168/jds.2021-21077

8. A retrospective on claims regarding clinical mastitis in the subsequent lactation, after use of an internal teat sealant in the dry period

Author:
J Eric Hillerton; Elizabeth A Berry
Source:
Journal of dairy research 2022 v.89 no.2 pp. 173-177
ISSN:
1469-7629
Subject:
dairy cows,   etc   ; ingredients; lactation; mammary glands; pathogens; research; sealants; teat sealants;     Show all 8 Subjects
Abstract:
... Infusion of an internal teat sealant into the mammary gland of the dairy cow at drying off has been claimed to reduce the incidence of clinical mastitis over many months in the subsequent lactation, despite the absence of any ingredient of the sealant remaining for that long. However, these claims have been poorly substantiated, often by lack of identification on when the infection occurred in the ...
DOI:
10.1017/S0022029922000401

9. Lameness changes the behavior of dairy cows: daily rank order of lying and feeding behavior decreases with increasing number of lameness indicators present in cow locomotion

Author:
Lilli Frondelius; Heli Lindeberg; Matti Pastell
Source:
Journal of veterinary behavior 2022 v.54 pp. 1-11
ISSN:
1558-7878
Subject:
dairy cows,   etc   ; animal welfare; automation; farms; herds; lactation stage; lameness; locomotion; roughage;     Show all 9 Subjects
Abstract:
... Lameness is a major animal welfare problem in modern dairy farms. Although association between cow behavior and lameness is proven, functioning and reliable on-farm applications for automatic lameness detection is still lacking because large within and between farm variation in cow behavior exists. There were two aims in this study: 1) to investigate if a simple ranking of cows in an order based o ...
DOI:
10.1016/j.jveb.2022.06.004

10. Use and adequacy of non‐pregnancy diagnosis in cow. Which future?

Author:
Giovanni Maria Gnemmi; Cristina Vittoria A. Maraboli; Benedetta Gnemmi; Roberta Saleri; Fabio De Rensis
Source:
Reproduction in domestic animals 2022 v.57 Suppl S5 pp. 45-52
ISSN:
0936-6768
Subject:
dairy cows,   etc   ; color; early diagnosis; herds; pregnancy; pregnancy diagnosis; reproductive performance; ultrasonics;     Show all 8 Subjects
Abstract:
... In cattle, early detection of gestation is very important from an economic and management point of view in all types of farming. However, due to the poor efficiency of oestrous detection, it is essential to determine non‐pregnant cows as early as possible, in order to minimize the inter‐insemination interval, thus de facto, reducing herd open days. Direct and indirect gestation diagnostic methods ...
DOI:
10.1111/rda.14206

11. Development of a novel stall design for dairy cattle: Part I. The effect of an increased slope on lying behavior, rumination, cleanliness, and preference

Author:
A.M. Wilson; T.C. Wright; J.P. Cant; V.R. Osborne
Source:
Animal 2022 v.16 no.1 pp. 100427
ISSN:
1751-7311
Subject:
dairy cows,   etc   ; Holstein; cross-over studies; free stalls; milk; milk yield; rumination;     Show all 7 Subjects
Abstract:
... The longitudinal slope of a stall is important for positioning cows in the stall and maintaining cleanliness of the stall surface. The objectives of this study were to determine the short-term effect of increasing free-stall slope from 4.5% to 9.3% on dairy cow lying behavior, rumination, milk production, cleanliness, and preference. In experiment 1, 60 multiparous Holstein cows were divided rando ...
DOI:
10.1016/j.animal.2021.100427

12. Dimension-reduced spatiotemporal network for lameness detection in dairy cows

Author:
Xi Kang; Shudong Li; Qian Li; Gang Liu
Source:
Computers and electronics in agriculture 2022 v.197 pp. 106922
ISSN:
0168-1699
Subject:
dairy cows,   etc   ; agriculture; algorithms; computer vision; data collection; electronics; gait; lameness; locomotion;     Show all 9 Subjects
Abstract:
... Lameness has a negative effect on the welfare and production of dairy cows. In previous studies of lameness detection in cows based on computer vision, cow walking videos contained considerable irrelevant information, lowering detection accuracy. In this study, we proposed a dairy cattle lameness detection method, namely, the Dimension-Reduced Spatiotemporal Network (DRSN), to reduce the impact of ...
DOI:
10.1016/j.compag.2022.106922

13. Predictive Models of Dairy Cow Thermal State: A Review from a Technological Perspective

Author:
Soraia F. Neves; Mónica C. F. Silva; João M. Miranda; George Stilwell; Paulo P. Cortez
Source:
Veterinary sciences 2022 v.9 no.8 pp. -
ISSN:
2306-7381
Subject:
dairy cows,   etc   ; energy; equipment; farms; heat stress; metabolism; milk production; risk; viability;     Show all 9 Subjects
Abstract:
... Dairy cattle are particularly sensitive to heat stress due to the higher metabolic rate needed for milk production. In recent decades, global warming and the increase in dairy production in warmer countries have stimulated the development of a wide range of environmental control systems for dairy farms. Despite their proven effectiveness, the associated energy and water consumption can compromise ...
DOI:
10.3390/vetsci9080416

14. Effet du type de stabulation sur le bien-être des vaches laitières en Algérie

Author:
S. Matallah; N. M’Hamdi; F. Matallah; Z. Bounouala
Source:
Canadian journal of animal science 2022 v.102 no.2 pp. 325-331
ISSN:
0008-3984
Subject:
dairy cows,   etc   ; Holstein; animal welfare; farmers; forage; free stalls; hygiene; thirst; winter; Algeria;     Show all 10 Subjects
Abstract:
... The objective of the present study was to examine the effect of the type of housing on Holstein dairy cow welfare on farms in northeast Algeria in four wilayas on the basis of the Welfare Quality® evaluation protocol for bovines. Therefore, we applied this protocol to 50 dairy farms with free stall housing and 50 dairy farms with tie stall housing. A total of 2200 dairy cows were evaluated during ...
DOI:
10.1139/cjas-2021-0001

15. Accurate detection of dairy cow mastitis with deep learning technology: a new and comprehensive detection method based on infrared thermal images

Author:
Y. Wang; X. Kang; Z. He; Y. Feng; G. Liu
Source:
Animal 2022 v.16 no.10 pp. 100646
ISSN:
1751-7311
Subject:
dairy cows,   etc   ; dairy industry; mastitis; models; somatic cell count; surface temperature; thermography; udders;     Show all 8 Subjects
Abstract:
... Mastitis is one of the most common diseases in dairy cows and has a negative impact on their welfare and life, causing significant economic losses to the dairy industry. Many attempts have been made to develop a detection method for mastitis using thermal infrared thermography. However, the use of this detection technique to determine the health of the cow's udder is susceptible to external factor ...
DOI:
10.1016/j.animal.2022.100646

16. Identification and analysis of miRNAs in the normal and fatty liver from the Holstein dairy cow

Author:
Yong Huang; Cai Zhang; Yanli Wang; Xihong Sun
Source:
Animal biotechnology 2022 v.33 no.3 pp. 468-479
ISSN:
1532-2378
Subject:
dairy cows,   etc   ; Holstein; axons; biomarkers; biotechnology; cardiomyopathy; cocaine; fatty liver; lipid metabolism; liver; microRNA;     Show all 11 Subjects
Abstract:
... MicroRNAs (miRNAs) are a class of non-coding short RNAs with ∼22 nts in length, which play important roles in the regulation of numerous biological processes in animals. In this study, two small RNA libraries from fatty (S01) and normal livers (S02) from Holstein Dairy Cow (HDC) were sequenced through deep sequencing. A total of 12,964,411 and 15,426,289 clean reads were obtained, representing 370 ...
DOI:
10.1080/10495398.2020.1804919

17. Antibacterial effect of synthetic ultra-short lipopeptide on Streptococcus agalactiae and its active on bacterial mastitis in mice

Author:
Jie Peng; Qiangsheng Lu; Xuming Liu; Yuanjie Deng; Tiantian Shang; Lvfeng Yuan; Hecheng Zhang; Qiaoying Zeng
Source:
Biochemical and biophysical research communications 2022 v.601 pp. 153-159
ISSN:
0006-291X
Subject:
dairy cows,   etc   ; Streptococcus agalactiae; antibacterial properties; antibiotics; chemical structure; lipopeptides; mice; milk industry; research;     Show all 9 Subjects
Abstract:
... Streptococcus agalactiae mastitis is one of the significant threats to the milk industry. The traditional antibiotic treatment method is easy to cause the emergence of resistant strains, and the problem of drug residue is increasingly severe. In this study, we designed and synthesized five lipopeptides. The antibacterial activity of different molecular structure lipopeptides against Streptococcus ...
DOI:
10.1016/j.bbrc.2022.02.061

18. Quantification of methane emissions from cattle farms, using the tracer gas dispersion method

Author:
Nathalia T. Vechi; Johan Mellqvist; Charlotte Scheutz
Source:
Agriculture, ecosystems & environment 2022 v.330 pp. 107885
ISSN:
0167-8809
Subject:
dairy cows,   etc   ; agriculture; beef; beef cattle; emissions factor; environment; farms; methane; methane production; Denmark;     Show all 10 Subjects
Abstract:
... In Denmark, agriculture is the largest source of anthropogenic methane emissions (81%), mainly from cattle (dairy and beef) farms. Whole-farm methane emissions were quantified at nine Danish cattle farms, using the tracer gas dispersion method. Five to six measurement campaigns were carried out at each farm, covering a full year. Of the nine cattle farms, seven were home to dairy cows and two to b ...
DOI:
10.1016/j.agee.2022.107885

19. The effect of bovine leukemia virus on dairy cow longevity

Author:
Oscar J. Benitez; Rebecca M. LaDronka; Bo Norby; Daniel L. Grooms; Paul C. Bartlett
Source:
JDS communications 2022 v.3 no.3 pp. 185-188
ISSN:
2666-9102
Subject:
dairy cows,   etc   ; Bovine leukemia virus; hazard ratio; immune response; lactation number; longevity; lymphoma; milk;     Show all 8 Subjects
Abstract:
... Bovine leukemia virus (BLV) is a retrovirus of cattle that infects approximately 45% of all US dairy cattle, with about 90% of US dairy herds having at least one infected animal. Studies have found BLV infection to be associated with multiple measures of decreased immune function, which may explain the observed economic losses from milk production, decreased cow longevity, and predisposition to ly ...
DOI:
10.3168/jdsc.2021-0187

20. Automatic assessment of dairy cows' rumen function over time and links to feed changes and milk production

Author:
X. Song; S. van Mourik; E.A.M. Bokkers; P.W.G. Groot Koerkamp; P.P.J. van der Tol
Source:
JDS communications 2022 v.3 no.2 pp. 126-131
ISSN:
2666-9102
Subject:
dairy cows,   etc   ; commercial farms; computer vision; farmers; longitudinal studies; milk composition; milk fat yield;     Show all 7 Subjects
Abstract:
... A 3-dimensional (3D) vision-based system was previously designed to automatically estimate the rumen motility of individual cows. This longitudinal study aimed to explore the associations between 3D vision-based rumen function assessment and dairy cow feed changes and milk production on a commercial farm. The 3D vision system was attached to an automatic milking robot to estimate the ruminal contr ...
DOI:
10.3168/jdsc.2021-0165