A range of temperature in which calves do not need to consume more energy to keep themselves warm or cool is called the range of natural heat, which depends on the fat storage level of the calves’ body, their age, the thickness of their body hair and the amount of feed they consume. They will change.<\/p>\n
The thermal range is usually between 5.55 degrees and 55 degrees Celsius, the lower limit of this range is especially critical for calves at the beginning of life (first 5 to 3 weeks). Calves at this age
\nThey eat a small amount of starter, and as a result, the heat that is obtained from the fermentation of these small materials in the rumen of the calves to keep their bodies warm is very little.
\nIn order to provide more energy for the calves, we can:<\/p>\n
<\/p>\n
1. Give more milk to the calves.
\n2. Use more non-consumable but pasteurized milk
\n3. Let’s give them a higher fat milk powder<\/p>\n
<\/p>\n
Since the effect of concentrate is very high, calves (55 and 65 kg) should consume a significant amount of it. For example, the daily energy in a 55 kg calf will increase to 535 grams by consuming 115 grams of starter.<\/p>\n
If we increase the consumption of concentrate to 532 grams per day at minus 5 degrees Celsius, the daily energy intake will be equal to 532 grams. This amount of daily energy received will not be enough for a calf weighing 55 kg, and due to its greater weight, it needs more energy (about 45 grams) to maintain its body. Of course, the importance of water should not be ignored. In winter, we have to drink hot water three times a day to the calves because they need four times as much water as the starter they eat.<\/p>\n
A research in the state of South Dakota, USA showed that the temperature of the contents of the rumen of calves decreases on average as follows.<\/p>\n
<\/p>\n
<\/p>\n
In an abstract of calf data collected by Cornell University over the past 10 years and recently published, researchers found that the difference between 552 grams more weight gain per day, before calves are weaned, than after The first calving will produce 385 grams of milk more per year.<\/p>\n
In the first three births, the maximum milk production reaches 5 kg. When researchers are looking for the reason for this difference (from 135 to 1225 grams) between daily weight gain before weaning
\nThey found that this difference is more related to the cold weather. Calves born in winter (with an average temperature of zero degrees Celsius) compared to calves born in warm weather (with an average temperature of
\ntemperature of 20 degrees centigrade) are born, they receive 1430 kcal less energy per day to maintain themselves.<\/p>\n
<\/p>\n
In cold weather, calves produced 235 kg more milk in the first period of lactation for every 5222 kilocalories of energy more than the body maintenance requirement, and this extra production is due to energy intake.
\nMore, it reaches 721 kg of milk in a period of three years. Of course, if we do not measure the weight of the calves regularly, we may not see these changes in them.<\/p>\n
<\/p>\n
First of all, we have to prepare a plan to regulate the daily fluid intake of calves in cold weather. It should not be forgotten that for every 5.5 degrees Celsius temperature lower than 5.55 degrees Celsius, the daily weight gain of calves is reduced by 535 grams. In younger calves, adjustment of consumption should be done on the program of liquid consumption, but in older calves, it may be necessary to provide more energy through liquid consumption, and this requires more attention to consume more concentrate and drink warm water.<\/p>\n","protected":false},"excerpt":{"rendered":"
A range of temperature in which calves do not need to consume more energy to keep themselves warm or cool is called the range of natural heat, which depends on the fat storage level of the calves’ body, their age, the thickness of their body hair and the amount of feed they consume. They will […]<\/p>\n","protected":false},"author":4,"featured_media":922,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-946","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-1"],"_links":{"self":[{"href":"https:\/\/ravansarcow.com\/en\/wp-json\/wp\/v2\/posts\/946","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ravansarcow.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ravansarcow.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ravansarcow.com\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/ravansarcow.com\/en\/wp-json\/wp\/v2\/comments?post=946"}],"version-history":[{"count":1,"href":"https:\/\/ravansarcow.com\/en\/wp-json\/wp\/v2\/posts\/946\/revisions"}],"predecessor-version":[{"id":947,"href":"https:\/\/ravansarcow.com\/en\/wp-json\/wp\/v2\/posts\/946\/revisions\/947"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ravansarcow.com\/en\/wp-json\/wp\/v2\/media\/922"}],"wp:attachment":[{"href":"https:\/\/ravansarcow.com\/en\/wp-json\/wp\/v2\/media?parent=946"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ravansarcow.com\/en\/wp-json\/wp\/v2\/categories?post=946"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ravansarcow.com\/en\/wp-json\/wp\/v2\/tags?post=946"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}