The Age of Aquariums. Most people who keep fish have a tank or two; perhaps they start with a five-gallon model and graduate to the 35- or 50-gallon version that doctors put in waiting rooms to keep patients calm.
Although calves are usually weaned at 8 weeks or older, many producers use early weaning programs to lower the costs of feed and labor. Calves tend to scour less when consuming solid feeds compared with liquid feeds. As a result, health costs may decrease. The following table illustrates the difference in the cost of feed and labor for weaning a calf at 5 or 8 weeks of age. This example represents estimated prices for a good quality milk replacer and calf starter. Under these circumstances, weaning a calf at 5 weeks instead of 8 weeks saves $26.89 per calf.
It supported the early-weaning concept. We also have collected data from 3,300 calves fed at conventional and moderately accelerated milk replacer programs and weaned at either 4 or 6 weeks. More than 94 percent of the calves in a conventional system were weaned on time with a four-week weaning program (Table 1).More than 99 percent of the calves in a moderately accelerated milk replacer program were weaned successfully with a four-week weaning program.ore than 94 percent of the calves in a conventional system were weaned on time with a four-week weaning program (Table 1). More than 99 percent of the calves in a moderately accelerated milk replacer program were weaned successfully with a four-week weaning program.