Evaluation of infrared thermography combined with behavioral biometrics for estrus detection in naturally cycling dairy cows

Infrared thermography (IRT) is a noninvasive and safe method of displaying the temperature map of objects that can be used to detect hoof diseases and lameness to reduce significant financial costs and physically stress animals. A qualitative bibliometric method based on the analysis of publications by the authors themselves using sophisticated tools of scientific databases was applied in this work. This review presents the fundamentals of IRT as well as recent developments in IRT detection in dairy science, including preprocessing, segmentation, and classification of objects in IRT images. In addition, recent studies dealing with the detection of hoof diseases and lameness using IRT are reviewed. As a result of this study, select previous studies are confronted in terms of technical aspects of IRT measurements such as emissivity, distance, temperature range, and reflected air temperature. Subsequently, recommendations for future IRT measurements are discussed.

Download Full-text

Udder skin surface temperature variation pre- and post- milking in dairy cows as determined by infrared thermography

Journal of Dairy Research ◽

10.1017/s0022029918000213 ◽

2018 ◽

Vol 85 (2) ◽

pp. 201-203 ◽

Cited By ~ 1

Author(s):

Chunhe Yang ◽

Gan Li ◽

Xiaojun Zhang ◽

Xianhong Gu

Keyword(s):

Surface Temperature ◽

Dairy Cows ◽

Infrared Thermography ◽

Sensitivity And Specificity ◽

Milk Yield ◽

Skin Surface ◽

Optimal Time ◽

Skin Surface Temperature ◽

Infrared Images ◽

Significant Difference

The objectives of the research reported in this Research Communication were to compare the variation of hind quarter skin surface temperature pre- and post- milking in dairy cows and to determine the optimal time to capture images by infrared thermography for improving the sensitivity and specificity of mastitis detection in dairy cows. Hind quarter infrared images of 102 Holstein dairy cows were captured from the caudal view by an infrared camera pre-milking and post-milking. The udder skin surface temperature was measured with the help of the image processing software. No significant difference was found between the left and right quarter skin surface temperature pre- and post- milking. The hind quarter skin surface temperature pre-milking was not significantly influenced by milk yield, but exhibited a rising trend along with the increase of milk yield. The hind quarter skin surface temperature post-milking was significantly influenced by milk yield. This leads us to conclude that the sensitivity and specificity of IRT in mastitis detection may be influenced by milk yield and it may be better to capture the infrared images of cow udders pre-milking.

Download Full-text

Effects of management and health on the use of activity monitoring for estrus detection in dairy cows

Journal of Dairy Science ◽

10.3168/jds.2011-4653 ◽

2012 ◽

Vol 95 (5) ◽

pp. 2452-2466 ◽

Cited By ~ 38

Author(s):

S.P.M. Aungier ◽

J.F. Roche ◽

M. Sheehy ◽

M.A. Crowe

Keyword(s):

Dairy Cows ◽

Activity Monitoring ◽

Estrus Detection

Download Full-text

Effects of Beta-carotene Administration on Fertility in Lactating Dairy Cows

Indian Journal of Animal Research ◽

10.18805/ijar.b-1320 ◽

2021 ◽

Author(s):

Ebru Karakaya Bilen ◽

Gülnaz Yılmazbaş Mecitoglu

Keyword(s):

Dairy Cows ◽

Detection Rate ◽

Beta Carotene ◽

Prostaglandin F2 Alpha ◽

Lactating Dairy Cows ◽

Follicle Diameter ◽

Ovulatory Follicle ◽

Estrus Detection ◽

Potential Benefits ◽

Β Carotene

Background: 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.Methods: Cows with at 47±3 postpartum days were divided into two groups: β-carotene group (βC, n=139) was treated with injectable β-carotene while untreated cows served as control (CON, n=227). In both groups, PGF was administered and heatmount detectors were applied at 54±3 days postpartum. Cows detected in estrus after PGF were inseminated. Cows that had not been detected in estrus were divided into two groups 7 days after PGF administration; βC-OVS (n=137) and CON-OVS (n=89). Ovsynch protocol was initiated 4 days after β-carotene administration.Result: The estrus detection rate was similar between the βC and CON groups (P = 0.19). Pregnancy per AI (P/AI) on d 31 was also similar between groups (P = 0.93). In the Ovsynch protocol, ovulation to the first GnRH and ovulatory follicle diameter at the time of insemination did not differ between groups. No difference was observed in P/AI at d 31 (P = 0.13). The results of this study indicated that β-carotene administration had no effect on fertility either PGF induced estrus or Ovsynch protocol in dairy cows.

Download Full-text