scholarly journals Frequency analysis of noise exposure of dairy cows in the process of milking

2016 ◽  
Vol 62 (No. 4) ◽  
pp. 185-189 ◽  
Author(s):  
M. Pšenka ◽  
M. Šístková ◽  
Š. Mihina ◽  
R. Gálik

In the environment of farms and farm buildings, cattle are exposed to various unnatural influences. Such an impact is also noise always arising with a certain energy conversion. In cattle farms, the sources of noise are represented by various mechanical equipment and machines that are used for enabling farm operations. The aim of the paper was to analyse the noise levels in dairy cattle production in the environment, during their day routine. Noise levels were measured at two farms with a different technological layout of milking parlour, with a different way of milking. The noise exposure of dairy cows was measured in three locations, namely in the milking parlour, during standing in the area before milking (in the so-called collection room) and directly in the stabling area. Noise exposure was measured during milking and when the milking parlour was turned off. The values were compared with the hearing sensitivity of cattle at selected frequencies (0.5, 1, 2, 4, 8 and 16 kHz).

Author(s):  
Hilal Yılmaz ◽  
Tugay Ayasan ◽  
Cengiz Sağlam ◽  
Mevlüt Gül

The aim of this study was to determine the socio-economic structures of dairy cattle farms and feed usage in dairy cattle sector in the Mediterranean Region provinces (Adana, Osmaniye, Mersin, Hatay, Kahramanmaraş) of Turkey. According to the results of the research, it was determined that the family sourced labour force was used at a higher rate than the foreign labour force during dairy cattle production activities. It was found that forage crops were produced in 62% of the farms where silage maize, alfalfa, barley and vetch covered the highest acreages, respectively. A large proportion of the enterprises was possessor of milking machines (85.81%). It was determined that, as the size of the farm increases, the roughage usage increases compared to concentrate feed.


2015 ◽  
Vol 34 (329) ◽  
pp. 21-25
Author(s):  
Dace Keidāne ◽  
Anna Krūklīte ◽  
Alīna Derbakova

Abstract The aim of the study was to investigate the beef and dairy cow parasitosis epizootic situation in Vidzeme region. Research was done throughout Vidzeme territory during the period of the years 2013-2014. The total number of animals examined was: 273 dairy and 90 young beef cattle aged from 6 months to two years and 248 dairy and 29 beef cows older than two years. For the diagnosis of helminthes standardized ovoscopic and larvoscopic methods were used. For the diagnosis of protozoa flotation and modified Ziehl-Neelsen methods were used. The main species in the samples were Cryptosporidium spp., Eimeria spp. and Strongylus spp. In the young dairy and beef cattle aged from 6 months to two years and cattle older than two years Cryptosporidium spp. invasion accordingly was 32.6% and 19% (dairy cattle) and 62.2% and 65.5% (beef cattle); the invasion of Eimeria spp. 30% and 7.3% (dairy cattle) and 55.6% and 10.3% (beef cattle); and the invasion of Strongylus spp. was 17.6% and 13.7% (dairy cattle) and 43.3% and 27.6% (beef cattle). Both dairy and beef cattle were infected with Moniezia spp., Paramphistomum spp., Strongyloides spp. Dairy cows aged from 6 months to two years had Trichuris spp., Dictyocaulus spp. and Neoscaris spp. invasion.


2019 ◽  
Vol 35 (1) ◽  
pp. 13-24
Author(s):  
Nicole Eberhart ◽  
Peter Krawczel ◽  
Pero Mijic ◽  
Vesna Gantner ◽  
Maja Gregic ◽  
...  

The objective of this study was to evaluate the welfare status of high-producing Holstein dairy cows on commercial Croatian farms. Lying behavior data was collected from 278 dairy cows across four farms with varying milking parlors and housing systems in eastern Croatia for at least 3 days. Data loggers recording at 1-min intervals recorded behaviors: lying time (min/d), lying bout duration (min/bout), lying bouts (n/d) and laterality of lying. Acceleration data was summarized into lying behaviors for each individual cow. Health scores (udder cleanliness, locomotion, and hock injuries) were also assessed. The univariate procedure was used to generate mean lying behaviors and health scores by farm with a 95% CI. Mean lying time per farm ranged from 11.7 ? 2.7 to 10.4 ? 2.7 h/d. Prevalence of lame cows ranged from 28% to 50%. Heavily soiled udders ranged from 2% to 12%. Prevalence of left hocks with minor to major swelling ranged from 50% to 100%; prevalence of right hocks with minor to major swelling ranged from 45% to 100%. In conclusion, all farms assessed have opportunities to improve overall welfare through increasing udder cleanliness and reducing hock injuries.


1994 ◽  
Vol 23 (2) ◽  
pp. 123-128
Author(s):  
Kor Oldenbroek

Dairy cattle production will be able to meet future increases in the requirements for animal protein in the human diet by means of increased efficiency of production, without an increase in cow numbers. Breeding, nutrition, production enhancers and automated milking will increase efficiency. It is also worth increasing the protein to fat ratio by breeding and nutritional methods. On a small scale, dairy cows may in future be used to produce human medicines in their milk.


2018 ◽  
Vol 34 (6) ◽  
pp. 921-927
Author(s):  
Martin Pšenka ◽  
Štefan Mihina ◽  
Matti Järvi ◽  
Marie Šístková ◽  
Viera Kažimírová ◽  
...  

Abstract. The aim of this article is to evaluate the noise levels of different milking systems. Noise was measured at 15 dairy farms in Slovakia, Finland, and the Czech Republic. Out of these, there were three herringbone, three tandem, three side-by-side, and three rotary milking parlors, and three automatic milking systems (AMS). Brüel&Kjær type 2270 sound analyser was used for measuring noise levels. Equivalent sound pressure level (LAeq), maximum sound pressure level (LAFmax), and peak values (LCPk) have been recorded in each milking system during the entire herd milking session. Keywords: Animal welfare, Dairy cows, Milking device, Noise exposure.


2014 ◽  
Vol 23 (1) ◽  
pp. 71-78 ◽  
Author(s):  
Beau England ◽  
Jeffery Blythe Larsen

Purpose The intensity of noise levels in a basketball arena during games, as well as the hearing sensitivity of attendees, was measured for the purpose of assessing the impact of the noise on hearing thresholds. Method Noise levels at 10 intercollegiate basketball games were measured with a dosimeter affixed on the shoulders of attendees. Hearing thresholds and distortion product otoacoustic emissions were measured for 20 participants just before attending a basketball game and within an hour of the end of the game to determine whether changes in hearing thresholds resulted from exposure to the sound levels within the arena during the games. Results Participants demonstrated temporary shifts in pure-tone thresholds and reductions in the intensity of their otoacoustic emissions after attendance at 1 of the basketball games. Dosimeter measurements showed that noise at 6 of the 10 basketball games exceeded acceptable intensity levels when compared with a national workplace noise exposure standard. Conclusion Although noise intensities, on average, did not exceed workplace exposure standards, universities would be wise to be proactive in warning spectators about the potential dangers of noise exposure at sporting events, make earplugs available to interested spectators, and implement a hearing conservation program for employees working in noise.


2019 ◽  
Vol 20 (2) ◽  
pp. 79-85
Author(s):  
A AbdelKhalek ◽  
M El-sherbini ◽  
S Alanzi

A survey to prevalence of subclincal mastitis (SCM) in some dairy cattle farms in state of Kuwait was carried out. 200 quarter milk samples from apparently healthy dairy cows. 200 quarter milk samples from apparently healthy dairy cows at Kuwait were investigated for subclinical mastitis using California mastitis test (CMT), Somatic cell count (SCC) and bacteriological isolation. The results revealed that the prevalence of subclinical mastitis was 45 % and bacterial culture was positive in 37.5%. SCC was assessed in 200 milk samples, the minimum and maximum SCC was 0.12 x 105 cell/ ml and 4.75 x 105 cell/ ml with the mean of 1.7±18.11 x 105 cell/ ml. The cultural examinations to determine subclinical mastitis causative agents revealed that the isolated bacterial strains in examined milk samples of cows were Staphyloccocus aureus, Streptococcus agalactia, E. coli and Pseudomanas aeruginosa with distribution of 37.6%, 20.5%, 19.4% and 3.2%, respectively as single infection from total 93 isolated bacterial strains. Meantime, there were mixed infection of (Staphyloccocus aureus + E. coli); (Streptococcus agalactia + E. coli) and (Staphyloccocus aureus + Pseudomanas aeruginosa) with the recovery rates of distribution of 8.6%, 9.7%, and 1%, respectively. Antibiogram profile of some representative field strains of Staphyloccocus aureus, Streptococcus agalactia, E. col and Pseudomanas aeruginosa isolated from subclinical mastitis cases to 11 different antibiotics. It revealed that all Staphyloccocus aureus, Streptococcus agalactia E. coli and Pseudomanas aeruginosa isolates were highly sensitive to enrofloxacillin, and Cloxacillin. However, it showed variable sensitivity degrees to other tested antibiotics. It could be concluded that subclinical mastitis constitutes a major economic and healthy problem for dairy herd in Kuwait.


Author(s):  
Said BOUKHECHEM ◽  
Nora MIMOUNE ◽  
Mohamed Khalil GHOZLANE ◽  
Nassim MOULA ◽  
Rachid KAIDI

The aim of this study was to make a finding about the structural, functional and performance aspects of 217 dairy farms in northern Algeria through a survey, then to establish a diagnosis and a typology of these farms.The results showed that farms had an average size of 42.7 ± 102 ha, of which 34.5% was fodder area (FA), and an average of 28 ± 34.5 livestock units (LU) per farm, of which 65% were dairy cows (DC) dominated mainly by the Holstein and Montbeliarde breeds (74.8% of the total herd). The average number of annual work unit (AWU) was 2.98 ± 1.92 AWU/farm of which 78 ± 35% was a family labour. The farms’ performances were generally low. Dairy production (DP) average was 14.3 ± 4.77 kg/cow/day/farm, while fertility represented by calving interval (CI) was 397 ± 20.2 days/cow/farm. The use of multidimensional statistical methods has identified five types of farms.This study revealed a poor exploitation of the dairy potential of cows raised in Algeria, with the dominance of archaic breeding practices that oppose the welfare of these cows. To optimize dairy farming, solutions have been proposed.


1981 ◽  
Vol 4 ◽  
pp. 343-348
Author(s):  
K. A. E. Archibald ◽  
P. O. Osuji ◽  
F. A. Neckles

The Commonwealth Caribbean countries imported approximately 55 million metric tonnes of milk and dairy products in 1973 and based on this level of imports a target of 194 million metric tonnes of milk and dairy products has been set to take into account the projected demand to 1980. In order to achieve this target, it is estimated by the Caricom Regional Livestock Complex that 91 000 more dairy cows will be required and also about 63 000 ha more pastures will be needed. The Region may not be able to sustain such a high cattle population on the existing and additional pasture lands and consequently there is a great need to intensify dairy cattle production. Intensive milk production normally involves the use of well managed, heavily fertilized pastures, together with liberal use of concentrate feeds, in order to achieve and maintain a high level of output.


2015 ◽  
Vol 59 (1) ◽  
pp. 23-28 ◽  
Author(s):  
Djamila Baazize-Ammi ◽  
Ouahiba Gassem ◽  
Fawzi Derrar ◽  
Kahina Izri ◽  
Mohamed Brahim-Errahmani ◽  
...  

Abstract We investigated whether dairy beef cattle raised in Algeria are Shiga toxin-producing Escherichia coli (STEC) carriers. Stx1 and stx2 genes were analysed in DNA isolated from 200 faecal samples collected from adult dairy cows from 27 randomly selected farms in Blida, North Algeria, after amplification by PCR. Samples from 61 (30.5%) animals out of the 200 were positive and were located in 18 farms with a prevalence of 66.7%. Interestingly, no sample from any cow was positive for only the stx2 gene, while in contrast, samples from 51 cows were positive for the stx1 gene alone (83.6%) and those from 10 other cows were positive for both stx1 and stx2 genes (16.4%). It should be noted that the faecal samples infected with pathogens carrying the two genes originated from 4 out of the 18 farms that were found to be positive, with a rate of 22.2%.


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