Abstract
Background: Inadequate colostrum supply results in insufficient intake of macronutrients and bioactive factors, thereby impairing gastrointestinal development and the maturation of glucose metabolism in neonatal calves. The flavonoid quercetin has been shown to have health-promoting properties, including effects in diabetic animals. However, quercetin interacts with intestinal glucose absorption and might therefore exert negative effects in neonates.
Objective: We evaluated the interaction between neonatal diet and quercetin feeding on splanchnic glucose metabolism in neonatal calves.
Methods: Calves (n = 28) were assigned to 4 groups and fed either colostrum or a milk-based formula on days 1 and 2 and supplemented daily with 148 mmol quercetin aglycone/kg body weight [colostrum with quercetin (CQ+)/formula with quercetin (FQ+)] or without this substance [colostrum without quercetin (CQ2)/formula with quercetin (FQ2)] from days
2–8. From day 3 onward, all calves received milk replacer. A xylose absorption test was performed on day 3, and on day 7, blood samples were collected to study glucose first-pass uptake after [13C6]-glucose feeding and intravenous [6,6-2
H2]-glucose
bolus injection. Plasma concentrations of metabolites and hormones were measured by taking additional blood samples. A biopsy specimen of the liver was harvested on day 8 to measure the mRNA expression of gluconeogenic enzymes.
Results: Higher postprandial plasma concentrations of glucose,
Statistical analysis for the animal studies. Our selection of 10 animals per time point is based on the group variance observed in our preliminary studies employing diet models. For example, an n = 10 provides 95% power (alpha of 0.05) to detect differences in ALT values of at least 30 U/L between two means with a standard deviation of 10 (two-tailed t-test). For endpoints such as ALT values, caspase positive cells, etc., in different animal populations, parametric analysis will be performed. ANOVA will be employed given the presence of multiple groups, and a Bonferroni test will be used to correct for multiple comparisons. If the distribution of values is unsuitable for a parametric analysis, we will perform a Kruskal-Wallis test for nonparametric data. If the data show a strong trend towards significance (e.g., p < 0.1) with reproducible data except for a rare outlier, we can consider increasing the number of animals per group. The number added will be calculated using the mean and standard deviation (SD) from the existing data
Glucagon acts on liver cells to promote breakdown of glycogen into glucose and formation of glucose from lactic acid and certain amino acids.
Compared to diabetic control rats, total antioxidant levels were significantly increased in GTE supplemented rats. Inversely, malondialdehyde levels and AT(1) receptor were significantly lower in the GTE supplemented diabetic group [77]. Catechin and its derivatives in green tea are shown to be therapeutically very effective.
Abd El-Shaffy and G. A. Abd El-Rahman. El-Nor, Khalif and El-Shaffy are from the Dairy Science Department, National Research Centre, Dokki, Cairo, Egypt. Khattab and El-Sayed are from the Animal Production Department Faculty of Agriculture, Ain Shams University, Shoubra Al-Kheimah, Cairo, Egypt. The last author El-Rahman is from the Animal Production Department, Faculty of Agriculture, Zagazig University. All that was just listed was the source of authority that these authors have in their country. These authors or professors are well-prepared to write about this topic because they talk about the whole experiment. They inform the reader about what was done in the experiment and what came out of the experiment. This article came from Revista Veterinaria. The intended readers are possibly Buffalo breeders to see what is the best way to feed the calf and what milk is the most nutritious. Also people that are interested in this topic can read this article as well. There
feedlots (2.8 + 0.5%; USDA, 2013) only behind bovine respiratory disease and metabolic/digestive conditions. A survey conducted in Kansas 1970’s by Brower and Kiracofe (1972) indicated that 2% of all feedlot steers in Kansas experienced the buller steer syndrome. In the same manner, Brower and Kiracofe (1978) and Irwin et al. (1979) reported that the annual incidence of buller steers within the feedlot industry fell somewhere between 2 and 4%. A 15-year summary of buller incidence in Midwest feedlots consisting of over 5 million steers reported a buller incidence of 2.45% (Edwards, 1995). Furthermore, a 2-year study by Taylor et al. (1997b) at a western Canada feedlot using 78,445 male (intact) cattle indicated a buller incidence rate ranging from 0.0 to 11.2%, with an average incidence of
The calf's rumen digests feed using fermentation; a process that calls for a development of bacteria in the rumen. This process takes three weeks after the calf weans, after which the amount of bacteria available in the rumen becomes able to ferment enough energy-giving feeds that the calf requires. Giving a calf quality grains and free-choice water helps its rumen to develop in a better way.
This system is an excellent choice as it produces maximum heterosis in both the calf and cow (51). As such, calves obtain the additional growth benefits of hybrid vigor while heterosis in the cows improves their maternal ability. The terminal cross system is one of the simplest systems to implement and achieves the highest use of heterosis and breed complementarities (17,44). All calves marketed will have the same breed composition. A 24% increase in pounds of calf weaned per cow exposed is expected from this system when compared to the average of the parent breeds.
To minimize the N.E.B the cow should be in the correct body condition before calving down, a score of 3.0 is appropriate. If the cow is too fat the she will not have the appetite to eat in early lactation which will affect the peak milk yield. It is key that the food intake is maximized post calving therefore the cow should have ad libitum access to forage at all time, the forage should also be of a high quality in early lactation, this is not as important when you move down the cycle. To overcome any limitations of forage concentrates like Molasses and Maize should also be used. A good concentrate mix for a dairy cow should contain starch sources of varying degradabilites, Molasses is rapidly degradable source while maize is a slowly degradable source of starch. There are two methods for feeding concentrates, in parlour and out of parlour. In parlour feeding systems the parlours are fitted with concentrate dispensing hoppers which dispense into the feed manger. A cow will receive 5kg per milking while a heifer will receive 4kg per milking. Out of parlour feeding is where feed is given out by transponders, in small amounts very often. Picture 1 shows an in parlour feeder system.
Calves, like most young, begin their lives with help from their mothers. According to Heather Smith Thomas, a correspondent for the Wyoming Livestock Roundup, “Newborn calves gain temporary, or passive, immunity from disease when they ingest colostrum from
When it comes to feeding show cattle many raisers have certain feeding strategies that they follow, ensuring they can maintain their goal on winning. Along with feeding it takes exercise so that one’s show calf will not become stout nor stubborn. Certain aspects are necessary to show an animal
For many centuries farmers and ranchers have taught us how to care for calves that were just born. There wasn't much to the process except for tagging the calf and writing down the records for it. Scours was really common for all babies to have within three to four days of being born. Scours is a form a diarrhea for cattle, and it can make them very sick and sometimes die. When calving out in the spring you never know what the weather conditions will be, and pneumonia is very common for the calves to catch. Scientist have been working hard for many years to figure out a solution of decreasing scours and pneumonia, and with the two new medications the chances have decreased tremendously.
Thesis: Humans are designed to drink human milk, not cow’s milk. Humans should really old drink milk during infancy and that’s because all of the hormones in cow’s milk can cause many health issues.
A key factor for success in using AMS is that the cows must be active cows that voluntarily enter the milking and feeding stations (K. M. Svennersten-Sjaunja and G. Pettersson 2008). In a study conducted with 25 farmers in North America, 70% of farms had to cull 4% of cows as they were unable to adapt to the new system due to unsuitable udder configuration, restlessness and failure to enter milking stall voluntarily. This percentage declined over time. Some farmers