scholarly journals Mid-season targeted selective anthelmintic treatment based on flexible weight gain threshold for nematode infection control in dairy calves

animal ◽  
2018 ◽  
Vol 12 (5) ◽  
pp. 1030-1040 ◽  
Author(s):  
A. Merlin ◽  
N. Ravinet ◽  
A. Madouasse ◽  
N. Bareille ◽  
A. Chauvin ◽  
...  
Keyword(s):  
Weight Gain ◽  
Infection Control ◽  
Nematode Infection ◽  
Dairy Calves ◽  
Anthelmintic Treatment ◽  
Gain Threshold

Effects of anthelmintic treatment on weight gain of weaned dairy calves on the Atherton Tablelands

1980 ◽  
Vol 31 (5) ◽  
pp. 1049 ◽  
Author(s):  
GW Hutchinson ◽  
LA Cook ◽  
P Colditz ◽  
DB Copeman
Keyword(s):  
Weight Gain ◽  
Body Weight Gain ◽  
Dairy Calves ◽  
Anthelmintic Treatment ◽  
Natural Resistance ◽  
Seasonal Incidence ◽  
High Doses ◽  
Low Dosage ◽  
Haemonchus Placei ◽  
Cool Conditions

The effects of repeated anthelmintic treatment with levamisole on body weight gain of grazing calves on the Atherton Tablelands are reported. On six farms, calves treated up to 10 times at 3-week intervals with 1.9 mg/kg or 7.5 mg/kg levamisole injected subcutaneously gained up to 37 and 59 kg more than untreated calves grazing the same pasture. Significant differences ( P < 0.05) were found in cumulative weight gains of calves given high doses of levamisole from 18 weeks and at low dosage from 24 weeks compared with untreated controls. The helminths mainly responsible for the reduced weight gain were Haemonchus placei, Oesophagostomum vadiatum and Coopevia species (C. pectinata and C. punctata). Seasonal incidence of nematode egg counts showed an increase in the proportion of H. placei eggs following wet and warm conditions, and O. vadiatum eggs following wet and cool conditions. Untreated calves developed natural resistance to helminth infection as measured by reduced faecal nematode egg counts after 6 months of natural challenge. One-quarter recommended dose of levamisole at 3-week intervals resulted in approximately half the weight gain advantage produced by full dose treatment except in the drier areas of the Tableland, where a higher advantage was recorded at this level.

EFFECT OF CONTINUOUS FEEDING OF RAPESEED MEAL ON GROWTH OF DAIRY CALVES AND SUBSEQUENT FIRST LACTATION YIELD

1971 ◽  
Vol 51 (3) ◽  
pp. 681-686 ◽  
Author(s):  
J. R. INGALLS ◽  
M. E. SEALE
Keyword(s):  
Weight Gain ◽  
Milk Production ◽  
Soybean Meal ◽  
Feed Intake ◽  
Feed Efficiency ◽  
Milk Fat ◽  
Rapeseed Meal ◽  
Conception Rate ◽  
Dairy Calves ◽  
Continuous Feeding

Thirty dairy heifer calves were reared from birth to calving on rations containing 0, 6.8 or 13.7% rapeseed meal in substitution for soybean meal. The level of rapeseed meal did not significantly (P > 0.05) affect feed intake, weight gain or feed efficiency of heifers up to breeding weight (330–340 kg). The level of rapeseed meal did not significantly (P > 0.05) affect reproduction or milk production during the first lactation. However, there may have been a trend for lower conception rate and milk fat production during first lactation with the higher level of rapeseed meal.

Improved weaning reduces cross-sucking and may improve weight gain in dairy calves

2008 ◽  
Vol 111 (3-4) ◽  
pp. 251-261 ◽  
Author(s):  
Beatrice A. Roth ◽  
Edna Hillmann ◽  
Markus Stauffacher ◽  
Nina M. Keil
Keyword(s):  
Weight Gain ◽  
Dairy Calves

scholarly journals Performance of dairy calves raised under two breeding systems

2017 ◽  
Vol 38 (2) ◽  
pp. 867
Author(s):  
Reinaldo Henrique Borger ◽  
Adriana Sousa Martins ◽  
Shivelly Los Galetto ◽  
Victor Breno Pedrosa ◽  
Raquel Abdallah da Rocha Oliveira ◽  
...  
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Feed Intake ◽  
Production Systems ◽  
Farming Systems ◽  
Milk Intake ◽  
Breeding Systems ◽  
Dairy Calves ◽  
Daily Weight Gain ◽  
Randomized Design

Increasing concern about some animal production systems has placed considerable value on humanitarian breeding systems, aimed at ensuring animal welfare and comfort. Raising calves is one of the most important stages in a milk production system. This study aimed to evaluate and compare the performance of Holstein dairy calves raised by two farming systems: conventional individual (CI) and collective with automatic calf feeder (CACF). Fourteen, 15-day-old Holstein dairy calves having an average initial body weight of 40 kg, were used. The animals were distributed in a completely randomized design with seven animals per treatment. The variables evaluated were the milk and feed intake, body weight, hip height, thoracic circumference and daily weight gain. The average milk intake was lower in the CACF (3.5 L animal-1 day-1) than CI (5.1 L animal-1 day-1) system. However, the feed intake was higher in the CACF (1.205 kg animal-1 day-1) compared to CI (0.910 kg animal-1 day-1) system. Body weight, thoracic circumference, hip height and daily weight gain were similar between the two systems. The CACF raised calves had a higher concentrate intake and lower milk intake than the calves raised under the CI system.

The influence of gentle interactions on avoidance distance towards humans, weight gain and physiological parameters in group-housed dairy calves

2015 ◽  
Vol 172 ◽  
pp. 9-16 ◽  
Author(s):  
Stephanie Lürzel ◽  
Charlotte Münsch ◽  
Ines Windschnurer ◽  
Andreas Futschik ◽  
Rupert Palme ◽  
...  
Keyword(s):  
Weight Gain ◽  
Physiological Parameters ◽  
Dairy Calves

scholarly journals The effect of age at separation from the dam and presence of social companions on play behavior and weight gain in dairy calves

2015 ◽  
Vol 98 (8) ◽  
pp. 5545-5556 ◽  
Author(s):  
B. Valníčková ◽  
I. Stěhulová ◽  
R. Šárová ◽  
M. Špinka
Keyword(s):  
Weight Gain ◽  
Play Behavior ◽  
Dairy Calves ◽  
Effect Of Age

TRITICALE IN DIETS FOR YOUNG DAIRY CALVES

1970 ◽  
Vol 50 (1) ◽  
pp. 199-204 ◽  
Author(s):  
J. R. INGALLS ◽  
T. J. DEVLIN ◽  
J. A. McKIRDY
Keyword(s):  
Weight Gain ◽  
Feed Intake ◽  
Feed Efficiency ◽  
Free Choice ◽  
Isobutyric Acid ◽  
Dairy Calves ◽  
Experimental Diet ◽  
Similar Weight ◽  
Meal Effect ◽  
Low Levels

A study was conducted to compare feed intake and growth rate of young dairy calves receiving two levels of triticale (27.5 and 55% of a complete ration) with calves receiving barley diets supplemented with urea or soybean meal. Effect of pelleting the 55% triticale diet was also examined. Each experimental diet was fed to 10 dairy calves (five bulls and five heifers) from birth. Experimental diets were fed free choice throughout. Triticale (1967 crop) at both levels reduced weight gain and feed intake relative to the control diets; however, there was little effect on feed efficiency. Low levels of ergot contamination of the triticale may have played a role in feed intake depression. Pelleting the 55% triticale diet resulted in reduced feed intake, similar weight gain and increased feed efficiency. Rations containing urea resulted in reduced rumen levels of isobutyric acid.

Sign in / Sign up

Export Citation Format

Share Document