scholarly journals Risk (Predisposing) Factors for Non-Infectious Claw Disorders in Dairy Cows Under Varying Zero-Grazing Systems

10.5772/29795 ◽  
2012 ◽  
Author(s):  
J. Nguhiu-Mwangi ◽  
P.M.F. Mbithi ◽  
J.K. Wabacha ◽  
P.G Mbuthi
Keyword(s):  
Dairy Cows ◽  
Predisposing Factors ◽  
Grazing Systems ◽  
Zero Grazing

scholarly journals The Mode of Grass Supply to Dairy Cows Impacts on Fatty Acid and Antioxidant Profile of Milk

Foods ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1256
Author(s):  
Senén De La Torre-Santos ◽  
Luis J. Royo ◽  
Adela Martínez-Fernández ◽  
Cristina Chocarro ◽  
Fernando Vicente
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Dairy Cows ◽  
Milk Production ◽  
Milk Yield ◽  
Milk Fat ◽  
Unsaturated Fatty Acids ◽  
Major Influence ◽  
Grass Silage ◽  
Zero Grazing

The optimization of milk production includes a rational use of forages, respect for the environment and offers the best quality to consumers. Milk production based on grass and forages produces healthier milk and it is widely spread throughout the Atlantic arc to maximize milk yield per hectare. However, the mode of offering the grass can have a major influence on milk composition. The aim of this study was to evaluate the effect of grass supply mode (grazing, zero-grazing or ensiling) on dairy cows’ performance, with particular reference to fatty acids and fat-soluble antioxidants concentration. A three by three Latin square experiment was performed with 18 dairy cows. Experimental treatments consisted of exclusive feeding with grass silage and zero-grazing, both offered ad libitum indoors, or grazing for 24 h. The results showed that grazing cows had a higher dry matter intake and greater milk yield than cows feeding on grass silage and zero-grazing, as well as higher concentrations of protein, lactose, nonfat-solids and urea in milk than housed cows. Milk fat from grazing cows had a higher proportion of unsaturated fatty acids than from cows feeding on grass silage and zero-grazing, with significant differences in the proportion of vaccenic and rumenic acids. The 18:1 trans-11 to 18:1 trans-10 ratio is proposed as biomarker to identify the milk produced from the management system of grazing cattle. Milk from grazing cows had a greater proportion of lutein than cows eating grass silage, with the zero-grazing system having intermediate values. In conclusion, the mode of grass supply affects fatty acid and antioxidant profiles of milk.

scholarly journals Multivariate Characterization of Biological Efficiency in Dairy Cows in Grazing Systems

2017 ◽  
Vol 6 (4) ◽  
pp. 83
Author(s):  
P. R. Marini ◽  
R. Castro ◽  
E. Frana ◽  
R. J. Di Masso
Keyword(s):  
Multivariate Analysis ◽  
Dairy Cows ◽  
Performance Indicators ◽  
Biological Efficiency ◽  
Reproductive Efficiency ◽  
Retrospective Data ◽  
Productive Performance ◽  
Reproductive Life ◽  
Grazing Systems

Retrospective data was used corresponding to the lactation of 216 first and multi-pregnancy cows, American-Canadian Holstein with registers of their whole productive life, from their entrance to the system till their sale or death, registers were gathered from1992-2012 in the Argentinian Holstein farm located in Casilda, province of Santa –Argentina. During the mentioned time, all the cows were managed in the same dairy premises. The animals were divided into two categories: pure cows (VP,n=88) and cows with breeding registers (VRC,n = 128). The variables under use were: age at first calving, in days (EPP), first calving – conception interval in days (IPP), milk production adapted to 305 lactation days, in litres (PL), the amount of butyric fat produced, in kilograms (GB), the number of calvings registered throughout its reproductive life (NP), milk index in litres (IL) and the fat index in kilograms (IG). There were statistically significant differences as regards the productive characteristics PL and GB. N average, throughout the cycle under study, the VP produced 591 litres of milk and 161 kg of fat more. There were no significant differences when considering the age of first calving or the calving – conception interval. VP cows registered higher IL and IG than VRC cows, with significant differences which favoured the former, in both cases. The four components generated by the multivariate analysis explained important portions of the total variance which lead to consider all of them when interpreting the joint relations between productive performance indicators and reproductive achievement. It is concluded that even though the biotypes under study behave differently, both coincide at the point of stating that those cows which belong to quadrant IV were those which presented the best adaptation to the environment, being the ones who live longer and with an intermediate reproductive efficiency, regardless their biotype.

The effect of perennial ryegrass ploidy and white clover inclusion on milk production of dairy cows

2020 ◽  
Vol 60 (1) ◽  
pp. 143 ◽  
Author(s):  
Bríd McClearn ◽  
Trevor Gilliland ◽  
Clare Guy ◽  
Michael Dineen ◽  
Fergal Coughlan ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Perennial Ryegrass ◽  
White Clover ◽  
Application Rate ◽  
Dairy Farmers ◽  
Increase Milk Production ◽  
Grazing Systems ◽  
Fertiliser Application ◽  
Grazing Dairy Cows

Grazed grass is considered the cheapest feed available for dairy cows in temperate regions, and to maximise profits, dairy farmers must utilise this high-quality feed where possible. Recent research has reported that including white clover (Trifolium repens L.) in grass swards can have a positive effect on milk production. The aim of the present study was to quantify the effect of tetraploid and diploid perennial ryegrass (Lolium perenne L.; PRG) swards sown with and without white clover on the milk production of grazing dairy cows. Four grazing treatments were used for the study; tetraploid-only PRG swards, diploid-only PRG swards, tetraploid PRG with white clover swards and diploid PRG with white clover swards. Thirty cows were assigned to each treatment and swards were rotationally grazed at a stocking rate of 2.75 cows/ha and a nitrogen-fertiliser application rate of 250 kg/ha annually. There was no significant effect of ploidy on milk production. Over the present 4-year study, cows grazing the PRG–white clover treatments had greater milk yields (+597 kg/cow.year) and milk-solid yield (+48 kg/cow.year) than cows grazing the PRG-only treatments. This significant increase in milk production suggests that the inclusion of white clover in grazing systems can be effectively used to increase milk production of grazing dairy cows.

scholarly journals Housing System, Milk Production, and Zero-Grazing Effects on Lameness and Leg Injury in Dairy Cows

2006 ◽  
Vol 89 (11) ◽  
pp. 4259-4266 ◽  
Author(s):  
M.J. Haskell ◽  
L.J. Rennie ◽  
V.A. Bowell ◽  
M.J. Bell ◽  
A.B. Lawrence
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Housing System ◽  
Grazing Effects ◽  
Zero Grazing

Keep on grazing: factors driving the pasture-raised milk market in Germany

2018 ◽  
Vol 120 (2) ◽  
pp. 452-467 ◽  
Author(s):  
Birgit Gassler ◽  
Qian Xiao ◽  
Sarah Kühl ◽  
Achim Spiller
Keyword(s):  
Dairy Cows ◽  
Structural Equation ◽  
Cross Sectional Study ◽  
Valuable Insight ◽  
Cross Sectional ◽  
Content Type ◽  
Raising Awareness ◽  
Perceived Price ◽  
Grazing Systems ◽  
Milk Market

Purpose The percentage of dairy cows managed in grazing systems in Northwest Europe is on the decline, even though pasturing is perceived favourably as enhancing the health and welfare of dairy cows. With consumers turning away from intensively produced food, developing the pasture-raised milk market could encourage farmers to continue keeping their cows on pastures. To provide insights for expanding this specialty milk market, the purpose of this paper is to, therefore, investigate the roles of personal, product-related, economic and social factors in purchasing pasture-raised milk. Design/methodology/approach Drivers of pasture-raised milk purchases are identified and the conceptual model is tested using structural equation modelling with data from a cross-sectional study among 917 German milk consumers. Findings Perceived price and availability barriers are the main consumption obstacles for pasture-raised milk. Besides increasing availability and reducing price premiums, processors should cater health and dietary conscious consumers by providing pasture-raised milk with unique and favourable product qualities, i.e. focussing on freshness, a rich taste or naturalness. Raising awareness for extensive husbandry systems may enhance pasture-raised milk purchases, while introducing a unified pasturing claim could help consumers to distinguish pasture-raised milk from conventional barn milk. Originality/value This study provides dairies and marketers with valuable insight about the factors driving pasture-raised milk purchases. This information is derived from a large sample with extensive regional coverage and will thus be useful in expanding this specialty milk market and in maintaining extensive dairy production.

scholarly journals Prevalence and Predisposing factors of Subclinical Mastitis in Dairy Cows in Bakir, Sukomulyo Village, Batu Regency

2019 ◽  
Vol 1 (2) ◽  
pp. 35-41
Author(s):  
Mira Fatmawati ◽  
◽  
Ani Setianingrum ◽  
Ajeng Erika Prihastuti Haskito ◽  
Fidi Nur Aini Eka Puji Dameanti ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Economic Loss ◽  
Subclinical Mastitis ◽  
Clinical Mastitis ◽  
Cross Sectional Study ◽  
Predisposing Factors ◽  
Cross Sectional ◽  
California Mastitis Test ◽  
Source Of Infection ◽  
Before And After

Udder inflammation in dairy cows known as mastitis is still a major problem in dairy industry. Economic loss caused by mastitis burden on farmers due to decrease on milk yield and decrease on the milk quality. Most of traditional farmers recognize clinical mastitis as the symptoms was obvious, while subclinical mastitis were not easy to detect and can be potential source of infection for the herd. Detection on subclinical mastitis were using indirect test california mastitis test (CMT) and direct test with Somatic Cell Count (SCC). This research was a cross sectional study using udder quarters milk sample from traditional dairy farms in Bakir, Sukomulyo village, Batu regency. Field test conduct uding CMT and SCC counting in laboratorium. Data collection using Questionnaire were conduct to asses predisposing variables on farmers. Result shows prevalence of subclinical mastitis based on SCC was 60,22% and based on CMT 18,20% of quarter sampels. Predisposing factors that have effect on mastitis were the sanitation of the cow and the farm before and after the milking process.

scholarly journals Effect of rumen fill on intake of fresh perennial ryegrass in young and mature dairy cows grazing or zero-grazing fresh perennial ryegrass

animal ◽  
2009 ◽  
Vol 3 (12) ◽  
pp. 1706-1720 ◽  
Author(s):  
A. Boudon ◽  
J.-L. Peyraud ◽  
P. Faverdin ◽  
R. Delagarde ◽  
L. Delaby ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Perennial Ryegrass ◽  
Zero Grazing
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