Influence of Decoquinate Fed to Neonatal Dairy Calves on Early and Conventional Weaning Systems
نویسندگان
چکیده
منابع مشابه
Early weaning beef calves.
Early weaning is a management practice that reduces grazing pressure on pastures by decreasing the nutrient requirements of cows. Calves that are weaned early are relatively efficient at converting feed to gain, and can weigh as much, or more than, calves allowed to remain with their dams until a conventional weaning age is reached. Balanced diets with excellent physical, chemical, and palatabi...
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The objectives of the current research were to determine the effect of weaning on fecal shedding of Salmonella and Escherichia coli O157:H7 in dairy calves and to examine cultured isolates (to include Enterococcus) for antimicrobial susceptibility. This research was conducted on one large commercial dairy (>3000 head) in the southwestern United States. Two collections were made, during the wint...
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Forty neonate calves were used in this study. The animals were divided into two treatment (n = 20) andcontrol (n = 20) groups. In the treatment group, oral iron as ferrous sulphate was supplemented to each calf atthe dose of 150 mg/day for 28 days, from the birthday. Blood sampling was taken from jugular veinimmediately after birth and on days 7, 14, 21 and 28 after birth. Significant differenc...
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A study was conducted to compare neutrophil and monocyte activation in neonatal dairy calves fed fresh or frozen colostrum. Fifteen male Holstein calves were fed either refrigerator-stored, non-maternal colostrum or frozen, non-maternal colostrum. Blood samples were collected at days 2 and 21 of life to determine phagocytic cell function using flow cytometry. Serum immunoglobulin concentration ...
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Methods of housing and managing the milk-fed dairy calf have changed considerably in recent years. We review key developments and how these affect calf welfare. Limit feeding of milk is recognized as both a welfare and production risk. Conventional limit feeding methods (i.e. approximately 10% BW/d) result in signs of chronic hunger, abnormal behavior, poor weight gains and poorer lifetime perf...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1990
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(90)78865-0