scholarly journals Using Changes in Eating and Rumination Time to Indicate the Onset of Parturition or Changes in the Health Status of Dairy Cows

2021 ◽  
Vol 69 (5) ◽  
pp. 555-561
Author(s):  
Radim Codl ◽  
Jaromír Ducháček ◽  
Jan Pytlík ◽  
Mojmír Vacek ◽  
Marek Vrhel
Keyword(s):  
Health Status ◽  
Dairy Cows

scholarly journals Infrared thermography: A potential noninvasive tool to monitor udder health status in dairy cows

2016 ◽  
Vol 9 (10) ◽  
pp. 1075-1081 ◽  
Author(s):  
M. Sathiyabarathi ◽  
S. Jeyakumar ◽  
A. Manimaran ◽  
G. Jayaprakash ◽  
Heartwin A. Pushpadass ◽  
...  
Keyword(s):  
Health Status ◽  
Dairy Cows ◽  
Infrared Thermography ◽  
Udder Health

Evaluation of the udder health status in subclinical mastitis affected dairy cows through bacteriological culture, somatic cell count and thermographic imaging

2015 ◽  
Vol 18 (4) ◽  
pp. 799-805 ◽  
Author(s):  
A. Bortolami ◽  
E. Fiore ◽  
M. Gianesella ◽  
M. Corrò ◽  
S. Catania ◽  
...  
Keyword(s):  
Health Status ◽  
Dairy Cows ◽  
Somatic Cell ◽  
Cell Count ◽  
Somatic Cell Count ◽  
Subclinical Mastitis ◽  
Bacteriological Culture ◽  
Udder Health ◽  
Streptococcus Uberis ◽  
Thermographic Imaging

Abstract Subclinical mastitis in dairy cows is a big economic loss for farmers. The monitoring of subclinical mastitis is usually performed through Somatic Cell Count (SCC) in farm but there is the need of new diagnostic systems able to quickly identify cows affected by subclinical infections of the udder. The aim of this study was to evaluate the potential application of thermographic imaging compared to SCC and bacteriological culture for infection detection in cow affected by subclinical mastitis and possibly to discriminate between different pathogens. In this study we evaluated the udder health status of 98 Holstein Friesian dairy cows with high SCC in 4 farms. From each cow a sample of milk was collected from all the functional quarters and submitted to bacteriological culture, SCC and Mycoplasma spp. culture. A thermographic image was taken from each functional udder quarter and nipple. Pearson’s correlations and Analysis of Variance were performed in order to evaluate the different diagnostic techniques. The most frequent pathogen isolated was Staphylococcus aureus followed by Coagulase Negative Staphylococci (CNS), Streptococcus uberis, Streptococcus agalactiae and others. The Somatic Cell Score (SCS) was able to discriminate (p<0.05) cows positive for a pathogen from cows negative at the bacteriological culture except for cows with infection caused by CNS. Infrared thermography was correlated to SCS (p<0.05) but was not able to discriminate between positive and negative cows. Thermographic imaging seems to be promising in evaluating the inflammation status of cows affected by subclinical mastitis but seems to have a poor diagnostic value.

scholarly journals Effects of Saccharomyces cerevisiae Addition in Dairy Cows Diets

2021 ◽  
Vol 78 (1) ◽  
pp. 18
Author(s):  
Marinela ENCULESCU
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Health Status ◽  
Dairy Cows ◽  
Milk Yield ◽  
Milk Fat ◽  
Control Group ◽  
Free Access ◽  
Alternative Source ◽  
Effective Measure ◽  
Experimental Group

The aim of this study was to evaluate the effects of fresh yeast (Saccharomyces cerevisiae) supplementation in the dairy cows’ diets on productive performances and health status. The study was carried out in the experimental farm of the Research and Development Institute for Bovine Balotești on 50 multiparous Romanian Black and Spotted dairy cows, randomly divided into two groups (N = 25 heads/group), according to age, milk yield, body weight and health status. The experimental group received 80 g Saccharomyces cerevisiae/head/day for one year. The groups were fed with the same diet and had free access to water and salt. Results were expressed as a mean (±Standard Deviation). The t-test was applied to obtain the significance of difference. Supplementation of the diet with Saccharomyces cerevisiae had a significant effect (P <0.001) on milk yield (20.71±1.65 l/head/day) for the experimental group comparing with the control group (18.22±1.81 l/head/day), and on milk protein and lactose (P <0.05). The addition of Saccharomyces cerevisiae in dairy cows’ diet did not improve the milk fat, hematological and biochemical/urine indicators in the experimental group (P >0.05). However, for alkaline phosphatase, differences at the end of the study have been observed (P <0.01). The beneficial effect of the yeast and yeast products in ruminants could be attributed to microbial activity by increasing the number of beneficial bacteria in the rumen of the animals. The use of Saccharomyces cerevisiae as an alternative source of economic protein, vitamins and minerals in dairy cows’ diet represents an effective measure to optimize animal productivity.

scholarly journals Associations of pre- and postpartum lying time with metabolic, inflammation, and health status of lactating dairy cows

2019 ◽  
Vol 102 (4) ◽  
pp. 3348-3361 ◽  
Author(s):  
J.M. Piñeiro ◽  
B.T. Menichetti ◽  
A.A. Barragan ◽  
A.E. Relling ◽  
W.P. Weiss ◽  
...  
Keyword(s):  
Health Status ◽  
Dairy Cows ◽  
Metabolic Inflammation ◽  
Lactating Dairy Cows

scholarly journals First Evaluation of Infrared Thermography as a Tool for the Monitoring of Udder Health Status in Farms of Dairy Cows

Sensors ◽  
2018 ◽  
Vol 18 (3) ◽  
pp. 862 ◽  
Author(s):  
Mauro Zaninelli ◽  
Veronica Redaelli ◽  
Fabio Luzi ◽  
Valerio Bronzo ◽  
Malcolm Mitchell ◽  
...  
Keyword(s):  
Health Status ◽  
Dairy Cows ◽  
Infrared Thermography ◽  
Udder Health

scholarly journals Reproductive performance in high producing dairy cows: practical implications

2008 ◽  
Vol 36 (S 01) ◽  
pp. S29-S33
Author(s):  
J. Leroy ◽  
G. Opsomer ◽  
A. de Kruif
Keyword(s):  
Health Status ◽  
Energy Balance ◽  
Dairy Cows ◽  
General Health ◽  
Sperm Quality ◽  
Negative Energy ◽  
Negative Energy Balance ◽  
Diagnostic Tools ◽  
Ovarian Activity ◽  
General Health Status

SummarySeveral studies have clearly demonstrated that the fertility of high yielding dairy cows has declined over the past 25 years. The resumption of ovarian activity post partum has been retarded and conception rates have dropped significantly from 55 to 40%. Accordingly, the calving interval has increased from about 385 days to 417 days. The percentage of cows culled because of infertility has risen from 5 to 8% per year. The “subfertility syndrome” is a multifactorial problem. As the negative energy balance and general health status after calving are known to be paramount factors hampering fertility, it is apparent that avoiding both is among the most important preventive measures to be taken. Improvement of the energy status by achieving a high dry matter intake and the provision of optimal and well balanced nutrition during the transition period as well as during early lactation are key goals in this effort. To achieve these goals, we should not only calculate the rations on paper, but should also check in the stable to determine whether the calculated amount is really being consumed by the cows. Furthermore, veterinarians should use their “clinical eyes” as well as other diagnostic tools to assess the general health status of the cows and to assess at which aspect of the process things are going wrong and need to be adjusted. Besides the control of the negative energy balance and health status, other management factors that need to be maximized include heat detection, cow comfort, insemination technique, time of insemination during estrus and sperm quality. Only if management is on a very high level high milk production and good fertility can be a feasible combination.

scholarly journals Assessment of Blood Metabolites Disorders and Related Pathological Risk Factors in Cows of Constantine Region, Algeria

2020 ◽  
Vol 77 (2) ◽  
pp. 42
Author(s):  
Adel MAMMERI ◽  
Fatima Zohra KAYOUECHE ◽  
Loubna DENHADJI ◽  
Abdelmalek BENMAKHLOUF
Keyword(s):  
Risk Factors ◽  
Health Status ◽  
Dairy Cows ◽  
Milk Production ◽  
Feeding Practices ◽  
Blood Metabolites ◽  
Total Proteins ◽  
Anova Test ◽  
Calcium Phosphorus

The aim of the present study is to evaluate some blood metabolites and to predict the occurence of nutritional imbalances affecting milk production and health status of cows. It included 180 dairy cows of five different breeds reared in five farms of Constantine Governorate. The biochemical analyzes via Technicon RA-X and RA-1000 autoanalyzers focused on: calcium, phosphorus, total proteins, lipids, glucose and creatinine.It results that hyperphosphatemia (> 65 mg/L) was clear in cows of farms 1 and 2 and moderate in those of farm 3; moderate hypocalcemia (< 97mg/L) in cows of farms 1, 2, 3 and 4; moderate hypoproteinemia (< 67 g/L) in farms 2 and 5; moderate hyperproteinemia (> 74.6 g/L) in farms 3 and 4, a clear hypercholesterolemia in whole farms. The significant differences (P< 0.01) via ANOVA test between farms, suggest variability of management methods, feeding practices and health status of cows.

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