scholarly journals Infection dynamics of digital dermatitis in first-lactation Holstein cows in an infected herd

2012 ◽  
Vol 95 (11) ◽  
pp. 6457-6464 ◽  
Author(s):  
N. Capion ◽  
M. Boye ◽  
C.T. Ekstrøm ◽  
T.K. Jensen
Keyword(s):  
Holstein Cows ◽  
Infected Herd ◽  
Digital Dermatitis ◽  
Infection Dynamics

scholarly journals Effect of the claw disorders on production performance in dairy cattle

2016 ◽  
pp. 15-19
Author(s):  
Michal Vlček ◽  
Radovan Kasarda
Keyword(s):  
Dairy Cattle ◽  
Dairy Cows ◽  
Milk Production ◽  
Production Performance ◽  
Holstein Cows ◽  
Production Traits ◽  
Digital Dermatitis ◽  
Interdigital Dermatitis ◽  
Holstein Dairy Cows

The aim of the study was the influence of claw disorders on production traits in dairy cattle. Observed were claw traits as claw angle, claw length, heel index, claw height, claw diagonal and claw width. Right hind claw after functional trimming was evaluated. Occurrence of claw disorders like interdigital dermatitis and heel erosion (IDHE), digital dermatitis (DD) and sole ulcer (SV) as well as the progress of disease were observed. Basic summary and variation statistics was performed by the SAS software. Two herds were included in the study. Holstein dairy cows (n=101) produced 11 875 kg of milk, 468 kg (3.94%) of fat and 396 kg (3.34%) of proteins. Holstein cows were affected with IDHE in 22 cases, with DD in 6 cases and with sole ulcer in 10 cases. Slovak Simmental dairy cows (n=101) produced 5834 kg of milk, 258 kg (4.44%) of fat and 209 kg (3.59%) of proteins. Slovak Simmental cows were affected with IDHE in 8 cases, with DD in 5 cases and with sole ulcer in 19 cases. Observed was that claw disorders caused deviations of milk production.

Clinical course of digital dermatitis lesions in an endemically infected herd without preventive herd strategies

2008 ◽  
Vol 177 (2) ◽  
pp. 222-230 ◽  
Author(s):  
Menno Holzhauer ◽  
Chris J.M. Bartels ◽  
Dörte Döpfer ◽  
Gerdien van Schaik
Keyword(s):  
Clinical Course ◽  
Infected Herd ◽  
Digital Dermatitis

scholarly journals Association between digital dermatitis lesions and test-day milk yield of Holstein cows from 41 French dairy farms

2013 ◽  
Vol 96 (4) ◽  
pp. 2190-2200 ◽  
Author(s):  
A. Relun ◽  
A. Lehebel ◽  
A. Chesnin ◽  
R. Guatteo ◽  
N. Bareille
Keyword(s):  
Milk Yield ◽  
Dairy Farms ◽  
Holstein Cows ◽  
Digital Dermatitis

Infection dynamics of Kudoa inornata (Cnidaria: Myxosporea) in spotted seatrout Cynoscion nebulosus (Teleostei: Sciaenidae)

2017 ◽  
Vol 127 (1) ◽  
pp. 29-40 ◽  
Author(s):  
I de Buron ◽  
KM Hill-Spanik ◽  
L Haselden ◽  
SD Atkinson ◽  
SL Hallett ◽  
...  
Keyword(s):  
Spotted Seatrout ◽  
Cynoscion Nebulosus ◽  
Infection Dynamics

Fluctuation of Reproductive Efficiency Traits of Holstein Cows in the Tokachi Area, Hokkaido

1982 ◽  
Vol 53 (12) ◽  
pp. 792-796
Author(s):  
Yoshinori TERAWAKI ◽  
Koji MUTO ◽  
Hitoshi ONO
Keyword(s):  
Holstein Cows ◽  
Reproductive Efficiency

Effects of short dry period on complete-lactation milk and component yield in Holstein cows

2013 ◽  
Vol 84 (3) ◽  
pp. 349-359
Author(s):  
Masato NAKAMURA ◽  
Kei-ichi NAKAJIMA ◽  
Yuji TAKAHASHI ◽  
Hiroki SHIONO
Keyword(s):  
Holstein Cows ◽  
Dry Period

Energy Metabolism in Lactating Holstein Cows

1995 ◽  
Vol 66 (4) ◽  
pp. 374-382
Author(s):  
Kiyoshi HAYASAKA ◽  
Naozumi TAKUSARI ◽  
Noriaki YAMAGISHI
Keyword(s):  
Energy Metabolism ◽  
Holstein Cows

COMPARATIVE DESCRIPTION OF MILK PRODUCTIVITY OF COWS UKRAINIAN RED-AND-WHITE DAIRY CATTLE AND UKRAINIAN BLACK-AND-WHITE DAIRY CATTLE AND HOLSTEIN BREEDS IN SERF «OLEKSANDRIVSKE»

2016 ◽  
Vol 52 ◽  
pp. 6-12 ◽  
Author(s):  
M. V. Gladiy ◽  
G. S. Kovalenko ◽  
S. V. Priyma ◽  
G. A. Holyosa ◽  
A. V. Tuchyk ◽  
...  
Keyword(s):  
Dairy Cattle ◽  
Dairy Cows ◽  
Milk Yield ◽  
Fat Content ◽  
Holstein Cows ◽  
Milk Productivity ◽  
Black And White ◽  
The Third ◽  
Fat Yield ◽  
Selection Of

The main goal of dairy breeds selection should be improving breeding and productive qualities of animals under modern conditions. The majority of farms, using native breeds to produce milk, has created optimal conditions for keeping and feeding, selection and matching, growing of replacements etc. Further improvement of created native dairy breeds for economically useful traits occurs at total use of purebred Holstein bulls (semen) of foreign selection. In order to realistically assess milk productivity (milk yield, fat content in milk and fat yield) of Ukrainian Black-and-White and Red-and-White Dairy cows should be conducted a comparative analysis of Holstein cows under the same conditions of feeding and keeping. It was established that Ukrainian Red-and-White Dairy cows were characterized by the highest milk yields for 305 days of all lactations, taken into account, the among three investigated breeds. Their milk yield during the first lactation was 5933 kg of milk, during the second – 6393 kg, the third – 6391 kg and during higher lactation – 6650 kg. Ukrainian Black-and-White Dairy cows were second by milk yield (except for the second lactation), during the first lactation – 5932 kg of milk, the third – 6462 kg and higher – 6541 kg, and Holstein cows were third, during the first lactation – 5794 kg of milk, the second – 6381 kg, the third – 6335 kg and higher – 6469 kg. The fat content was almost the same and varied within 3.49-3.58% in milk of Ukrainian Red-and-White Dairy cattle, 3.50-3.60% in milk of Ukrainian Black-and-White Dairy cattle and 3.50-3.56% in Holsteins’ milk. The difference between the breeds was within 0.01-0.04%. All the investigated breeds had predominance in fat yield for three lactations over standards of these breeds: Ukrainian Red-and-White Dairy cows from 75.1 to 93.4 kg, Ukrainian Black-and-White Dairy cows – 75.1-89.0 kg respectively and Holstein cows – 41.9-60.2 kg. It was found different level of positive correlation between milk yield and fat yield in all the cases and high correlation (r = 0.604-0.921, P < 0.001) in five cases (41.7%) Negative correlation coefficients indicate that selection of animals to higher milk yield in the herd will decrease the second trait – fat content in milk. Positive and highly significant correlation between milk yield and fat yield indicates that selection of cows in the herd to higher milk yields will increase fat yield. It was revealed that bulls were among the factors impacted the milk productivity (milk yield, fat content, fat yield) of three investigated breeds. So, the force (η²x) of father’s impact on milk yield was15.4-47.9%, fat content – 22.0-43.4% and fat yield – 14.9-47.7% taking into account a lactation and a breed. The force of lines impact (η²x) was second; it was on milk yield 6.1-24.5%, fat content – 4.1-17.1 and fat yield – 5.8-23.5%. The force of breeds impact (η²x) was last; it was on milk yield 0.3-2.9%, fat content – 0.2-0.3% and fat yield – 0.6-2.7%. So, the comparative studies of milk productivity of Ukrainian Red-and-White and Black-and-White Dairy cattle with Holsteins indicate that under similar conditions of feeding and keeping, these native breeds can compete with Holstein cattle. The milk yield for 305 days of higher lactation was 6650 kg of milk in Ukrainian Red-and-White Dairy cows, 6541 kg in Ukrainian Black-and-White Dairy cows and 6469 kg in Holsteins. It was found the inverse correlation r = -0.025-0.316 between milk yield and fat content in milk in most cases. Selection and matching of animals in the herd should be carried out simultaneously on these traits. It was found positive repeatability of milk yields between the first and second, the third and higher lactations (rs = 0.036-0.741), indicating the reliability of forecasting increase in milk productivity during the next lactations in all herd. Bulls have the greatest impact (η²x) on milk productivity among the factors taken into account: milk yield – 15.4-47.9%, fat content in milk – 22.0-43.4% and fat yield – 14.9-47.7%.

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