1233 A survey of management practices and producers' perceptions regarding manual and automated milk feeding systems for dairy calves

2016 ◽  
Vol 94 (suppl_5) ◽  
pp. 593-594 ◽  
Author(s):  
C. Medrano-Galarza ◽  
J. Rushen ◽  
A. M. de Passillé ◽  
A. Jones-Bitton ◽  
T. J. DeVries ◽  
...  
Keyword(s):  
Management Practices ◽  
Dairy Calves ◽  
Milk Feeding ◽  
Feeding Systems

scholarly journals A survey of dairy calf management practices among farms using manual and automated milk feeding systems in Canada

2017 ◽  
Vol 100 (8) ◽  
pp. 6872-6884 ◽  
Author(s):  
Catalina Medrano-Galarza ◽  
Stephen J. LeBlanc ◽  
Trevor J. DeVries ◽  
Andria Jones-Bitton ◽  
Jeffrey Rushen ◽  
...  
Keyword(s):  
Management Practices ◽  
Dairy Calf ◽  
Milk Feeding ◽  
Feeding Systems

scholarly journals Dairy Calf Welfare and Factors Associated with Diarrhea and Respiratory Disease among Chilean Dairy Farms

Animals ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 1115
Author(s):  
Javiera Calderón-Amor ◽  
Carmen Gallo
Keyword(s):  
Respiratory Disease ◽  
Management Practices ◽  
Dairy Farms ◽  
Herd Size ◽  
Dairy Calves ◽  
Dairy Calf ◽  
Logistic Regression Models ◽  
Factors Associated ◽  
Waste Milk ◽  
Milk Feeding

This study aimed to describe management practices that may compromise the welfare of unweaned dairy calves on 29 dairy farms in Chile, and identify factors associated with diarrhea and respiratory disease (n = 700 calves). Evaluations were divided into protocol-, facility-, and animal-based measurements. Calf diarrhea and respiratory disease data were analyzed using logistic regression models. Management practices identified as risk factors for poor calf welfare were: relying on the mother to provide colostrum (48.0% of the farms); using restrictive milk feeding (65.5%), and unpasteurized waste milk (51.7%); giving water after 30 days of age (17.2%); disbudding without analgesia (89.6%) or anesthesia (79.3%); lacking euthanasia protocols (61.5%). Factors significantly (p < 0.05) associated with increased odds of diarrhea were: cleaning the calves’ bed once a week and 2–3 times a week compared with every day, using milk replacer and untreated waste milk compared with treated waste milk (pasteurized or acidified), animals scored dirty in the calf cleanliness score compared with clean animals, and greater herd size. Factors significantly associated with increased odds of respiratory disease were: less pen space allowance (<1.8 m2), farms that did not check colostrum quality, and animals that scored dirty and moderately dirty compared with clean calves. These results suggest the need to improve specific management practices associated with reduced welfare and health in dairy calves in Chile.

scholarly journals Producer perceptions of manual and automated milk feeding systems for dairy calves in Canada

2018 ◽  
Vol 98 (2) ◽  
pp. 250-259 ◽  
Author(s):  
Catalina Medrano-Galarza ◽  
Stephen J. LeBlanc ◽  
Andria Jones-Bitton ◽  
Trevor J. DeVries ◽  
Jeffrey Rushen ◽  
...  
Keyword(s):  
Dairy Calves ◽  
Farm Size ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Adoption Of Technology ◽  
Factors Affecting ◽  
Advantages And Disadvantages ◽  
Feeding Methods ◽  
Milk Feeding ◽  
Feeding Systems

As part of a cross-sectional survey, Canadian dairy producers were asked a set of questions to (1) determine factors that influenced them to continue using manual milk feeding (MMF) systems or to switch to automated milk feeding (AMF) and (2) investigate producers’ perceived advantages and disadvantages regarding both feeding systems. A total of 670 responses were received. Among respondents, 16% used AMF and 84% used MMF. The four most frequent factors that producers reported as important in motivating them to switch to AMF were to raise better calves, offer more milk to calves, reduce labor, and improve working conditions. For MMF farms, investment in equipment and group housing facilities, as well as farm size, were the primary reasons reported for their continued use of MMF systems. The principal perceived advantages of having an AMF were that calves are able to express natural behaviors and drink more milk without increased labor input. For MMF systems, the main perceived advantage was related to easier identification of sick calves. Results provide insights into factors affecting the choice of calf feeding methods by dairy producers, and improve understanding of producers’ needs and expectations regarding calf management and adoption of technology.

scholarly journals Mortality and health treatment rates of dairy calves in automated milk feeding systems in the Upper Midwest of the United States

2017 ◽  
Vol 100 (11) ◽  
pp. 9186-9193 ◽  
Author(s):  
M.W. Jorgensen ◽  
A. Adams-Progar ◽  
A.M. de Passillé ◽  
J. Rushen ◽  
J.A. Salfer ◽  
...  
Keyword(s):  
United States ◽  
The United States ◽  
Dairy Calves ◽  
Upper Midwest ◽  
Health Treatment ◽  
Milk Feeding ◽  
Feeding Systems

scholarly journals Regional management practices and prevalence of bovine respiratory disease in California's preweaned dairy calves

2019 ◽  
Vol 102 (8) ◽  
pp. 7583-7596 ◽  
Author(s):  
B.M. Karle ◽  
G.U. Maier ◽  
W.J. Love ◽  
S.A. Dubrovsky ◽  
D.R. Williams ◽  
...  
Keyword(s):  
Respiratory Disease ◽  
Management Practices ◽  
Bovine Respiratory Disease ◽  
Dairy Calves ◽  
Regional Management

scholarly journals Assessment of Influential Factors for Scours Associated with Cryptosporidium sp., Rotavirus and Coronavirus in Calves from Argentinean Dairy Farms

Animals ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 2652
Author(s):  
Emiliano Bertoni ◽  
Adrián A. Barragán ◽  
Marina Bok ◽  
Celina Vega ◽  
Marcela Martínez ◽  
...  
Keyword(s):  
Management Practices ◽  
Dairy Farms ◽  
Herd Size ◽  
Influential Factors ◽  
Dairy Calves ◽  
Farm Size ◽  
Common Disease ◽  
Contributing Factors ◽  
Fecal Samples ◽  
Logistic Regression Models

Scours is the most common disease in dairy calves, and it is a multifactorial syndrome complex. Cryptosporidium sp. (C. sp.), rotavirus group A (RVA), and bovine coronavirus (BCoV) are the three main pathogens associated with scours. The objective of this study was to identify potential factors associated with scours, C. sp., RVA, and BCoV infections in preweaned dairy calves from Lerma Valley in Salta Province, Argentina. A total of 488 preweaned calves from 19 dairy farms located in the Lerma Valley were enrolled in this observational study. One fecal sample was collected from each calf between one week and two months of age for assessment of C. sp., RVA, and BCoV infection status. Cryptosporidium sp. oocysts and RVA and BCoV antigens in fecal samples were assessed using microscopic observation and indirect enzyme-linked immune sorbent assay (iELISA), respectively. A voluntary questionnaire was developed and used to collect data regarding management practices from the participants’ farms. The data were analyzed using multivariable logistic regression models. Scours incidence was 35.4%, and a greater proportion of calves younger than 20 days were affected. Of the fecal samples, 18% and 9.5% tested were positives for C. sp. and RVA, respectively, while BCoV was detected only in two calves. Furthermore, 84.2% and 63.1% of the farms tested positive for Cryptosporidium sp. and RVA, respectively. In addition, the following variables were associated with higher odds of having scours: (1) herd size (>300 milking cows; OR = 1.7), (2) calf age (<20 days of age; OR = 2.2), (3) RVA and C. sp. test (positive test; RVA OR = 2.6; C. sp. OR = 3), calf feeding practices (feeding milk replacer; OR = 1.81), and newborn calf management practices (calf moved from maternity pen <6 h after calving; OR = 1.7). Concerning RVA infection, calves less than 20 days of age (OR = 2.6) had a higher chance of testing positive for RVA, while calves that remained in the calving pen for less than 6 h after calving had a lower chance (OR = 0.3). On the other hand, for C. sp. infection, large farm size (>300 milking cows; OR = 1.2) and young calf age (<20 days of age; OR = 4.4) indicated a higher chance of testing positive for C. sp., while calves belonging to farms that fed frozen colostrum (OR = 0.2) had a lower chance of becoming infected with C. sp. The result of this study indicated that scours is a prevalent disease in farms of the Lerma Valley, Salta, Argentina, and that RVA and C. sp. infections, along with specific farm management practices, might be important contributing factors that could increase the chance of NCS in dairy farms.

RAISING DAIRY CALVES WITHOUT WHOLE MILK

1958 ◽  
Vol 38 (2) ◽  
pp. 103-108 ◽  
Author(s):  
J. M. Bell
Keyword(s):  
Dry Matter ◽  
Dairy Calves ◽  
Feeding Period ◽  
Feeding Experiments ◽  
Holstein Friesian ◽  
Whole Milk ◽  
Weight Gains ◽  
Milk Substitutes ◽  
Milk Feeding

The results of feeding experiments, involving a total of 117 Holstein-Friesian calves, were reported. No whole milk nor fresh skimmilk was fed to the calves after their second day of age. Milk substitutes containing 40 to 50 per cent dried skimmilk, 5 to 10 per cent emulsified, stabilized lard and at least 30 p.p.m. of Aureomycin (chlortetracycline) or Terramycin (oxytetracycline) in the dry matter permitted weight gains equal to, or exceeding, the Beltsville standards during the milk feeding period. Supplementary lecithin had no effect on performance of the calves. Weaning calves from milk substitutes at weights of 145 to 150 lb. was considered preferable to weaning at specified ages because of apparent differences in physiological development that exist among calves for the first few months of life.

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