scholarly journals Effects of Melatonin on Dairy Herd Improvement (DHI) of Holstein Cow with High SCS

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 834
Author(s):  
Hao Wu ◽  
Songyang Yao ◽  
Tiankun Wang ◽  
Jun Wang ◽  
Kang Ren ◽  
...  

Mastitis is a common disease in cows breeding. The milk quality will be significantly reduced with increased milk somatic cells, which often occurs in cows with mastitis. In this study, the influence of seasonal changes, age and lactation stages in the Dairy Herd Improvement (DHI) of cows was investigated. Then, the Dairy Herd Improvement (DHI) of cows with high somatic cell score (SCS) after melatonin treatment was systemically investigated. The results showed that melatonin significantly suppressed the milk somatic cell score under all of the tested conditions. The melatonin treatment also improved the milk nutritional value by reducing its fat but increasing its lactose and protein contents. The application of melatonin significantly improved the DHI. The beneficial effects of melatonin on DHI are likely attributed to the antioxidant and anti-inflammatory activities of melatonin.

2020 ◽  
Author(s):  
Hao Wu ◽  
Songyang Yao ◽  
Tiankun Wang ◽  
Jun Wang ◽  
Kang Ren ◽  
...  

Abstract Background: Mastitis is a common disease in cows breeding. The milk quality will be significantly reduced with increased milk somatic cells which often occur in cows with mastitis. In the current study, we reported that melatonin significantly reduced the milk somatic cell count in Holstein cow with mastitis. In addition, the nutritional value of the milk also significantly improved by melatonin treatment. Results: The results showed that melatonin significantly suppressed the milk somatic cell score under any of the tested conditions. A long term of melatonin application (one year) to the cows with mastitis suppressed the somatic cell score by roughly 63% which was more efficiency than that of some antibiotic treatments. Melatonin treatment also improved the milk nutritional value by reducing its fat but increasing its lactose and protein contents. Conclusions: Melatonin application significantly improved DHI. The beneficial effects of melatonin on DHI are likely attributed to the antioxidant and anti-inflammatory activities of melatonin.


1977 ◽  
Vol 40 (10) ◽  
pp. 671-675 ◽  
Author(s):  
N. WANG ◽  
G. H. RICHARDSON

Milk sample preparation for Optical Somatic Cell Counter II operation was simplified by using a diluter to add fixative, mix, and dilute samples. Potassium dichromate preservative tablets produced a mean increase of 7,000 in somatic cell counts in fresh milk. Samples held at 20–23 C beyond 2 days or at 4–7 C beyond 4 days showed a reduction in somatic cell count. The mean somatic cells in 3 Holstein herds tested over a 6-month period was 3.8 × 105/ml. A 22-month survey of 52.6 thousand Utah Dairy Herd Improvement samples which were shipped under ambient conditions and then held at 5 C until tested, indicated 75% below 400,000 and 2.7% above 1.6 million somatic cells/ml. Casein, noncasein protein, total protein, fat and milk weight data were also obtained on the three herds. Multiple correlations were obtained. The best correlations suggested that testing for total protein and somatic cells in a central laboratory would estimate casein and noncasein protein. Such tests are most valuable for the cheese industry.


2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 345-346
Author(s):  
Daulet Aitmukhanbetov ◽  
Aizhan Abylgazinova ◽  
Zhumadiya Tleulenov ◽  
Aliya Serikbaeva

Abstract According to requirements of the Safety of Milk and Dairy Products in our republic somatic cells count should be less than 750,000 cells / mL. Achieving this level is possible with the implementation of somatic cell programs based on the experience of laboratories in Western Europe and Northern America (G.M. Jones). Somatic cells in milk are counted in the United States and Canada as part of the National Dairy Herd Improvement (DHI) program. The result was a significant improvement of the dairy herd by mastitis level (Barkema H.W., Schukken Y.H., Lam T.J., Beiboer M.L., Wilmink H. et al. 1998). Average somatic cell content was less than 200 thousand cells/mL. The purpose was to determine somatic cells count in the herds of Republic of Kazakhstan and to test the SCC program. Research work was carried out under project “Improving the breeding methods efficiency.” The chemical composition and somatic cell count were carried out on a CombiFossFT + infrared analyzer. The results of counting somatic cells in milk of dairy cows in the farms of the northern region, the Republic of Kazakhstan, showed that the quality of milk in most dairy farms meets the requirements of the technical regulation on the quality and safety of milk (table 1). According to the table, it can be said that livestock of dairy cattle by 16% or more are affected by clinical and subclinical mastitis. Moreover, each farm receives less than 6% or more of milk. To increase the efficiency of dairy cattle breeding in the Republic of Kazakhstan, it is necessary to introduce a program for somatic cell counting into the practice of dairy laboratories.


2006 ◽  
Vol 73 (2) ◽  
pp. 154-162 ◽  
Author(s):  
Melvin T Kuhn ◽  
Jana L Hutchison ◽  
H Duane Norman

The objective was to utilize data from modern US dairy cattle to determine the effect of days dry on fat and protein yield, fat and protein percentages, days open, and somatic cell score in the subsequent lactation. Field data collected through the dairy herd improvement association from January 1997 to December 2003 and extracted from the Animal Improvement Programs Laboratory national database were used for analysis. Actual lactation records calculated from test-day yields using the test-interval method were used in this study. The model for analyses included herd-year of calving, year-state-month of calving, previous lactation record, age at calving, and days dry as a categorical variable. Fat and protein yield was maximized in the subsequent lactation with a 60-d dry period. Dry periods of 20 d or less resulted in substantial losses in fat and protein yield in the subsequent lactation. In contrast to yields, a short dry period was beneficial for fat and protein percentages. Short dry periods also resulted in fewer days open in the subsequent lactation; however, this was entirely due to the lower milk yield associated with shortened dry period. When adjusted for milk yield, short dry periods actually resulted in poorer fertility in the subsequent lactation. Long days dry improved somatic cell score in the subsequent lactation. Herds with mastitis problems should be cautious in shortening days dry because short dry periods led to higher cell scores in the subsequent lactation compared with 60-d dry.


2020 ◽  
Vol 10 ◽  
Author(s):  
Thekkuttuparambil A Ajith ◽  
Kynoor K Janardhanan

: Diabetes remains the major public health challenge to 21st century. It is strongly related to lifestyle changes. Most chronic complications of diabetes are macrovascular and microvascular diseases resulting from the existing hyperglycemic status. Failure of first line therapy which is based on diet modifications and exercise, conventional treatment using antihyperglycemic agents with different mechanisms of action will be implemented for type II diabetes in modern medicine. Higher Basidiomycetes mushrooms are highly praised for their nutritional value and pharmacological properties. They have long been used traditionally for the maintenance of health, prevention and treatment of various human ailments. Reports indicate the beneficial effects of medicinal mushrooms in diabetes treatments. However, scientific evidences are insufficient to make definitive conclusions on the efficacy of individual medicinal mushrooms. Mushrooms belong to the genera Phellinus such as Phellinus linteus, Phellinus ribis, Phellinus rimosus and Phellinus igniarius. They possess significant hypoglycemic effect in experimental diabetic models. However, well-designed controlled clinical trials are needed to establish their safety and bioactivity.


Antioxidants ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1207
Author(s):  
Shu-Cheng Duan ◽  
Soon-Jae Kwon ◽  
Seok-Hyun Eom

The leaves and seeds of the faba bean are good sources of L-3,4-dihydroxyphenylalanin (L-dopa), and are usually eaten with thermal cooking methods. However, little information is available on the effect of thermal treatments on their nutritional value. We compared the changes in color, contents of L-dopa, vitamin C (Vc), total phenolics (TP), total flavonoids (TF) and antioxidant activity after dry heating or steaming faba bean leaves and seeds. The young leaves provided higher values of all the estimate factors, regardless of the thermal treatment. Steaming significantly degraded nutritional values of the leaves, but less changed in seeds, whereas dry heat maintained these attributes. The contents of L-dopa, Vc, TP and TF were shown to have strongly positive correlations with antioxidant activity in the leaves, whereas only L-dopa content was positively correlated with antioxidant activity of the seeds. Faba leaves contained relatively high L-dopa which possessed strong antioxidant activity compared to the Vc. As L-dopa is an important contributor to the antioxidant activity of faba leaves and seeds, consuming L-dopa from leaves may provide beneficial effects not only regarding Parkinson’s Disease.


animal ◽  
2021 ◽  
pp. 100027
Author(s):  
C. Wei ◽  
H.-P. Luo ◽  
Y.-C. Wang ◽  
X.-X. Huang ◽  
M.-H. Zhang ◽  
...  

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