What factors influence the protein and fat content of milk?
The amount of energy consumed, density of energy in the diet, and the source of energy in the diet all influence milk protein percentage and yield.
Which factor does not affect the composition of milk?
Generally, dietary crude protein level affects milk yield but not milk protein percent, unless the diet is deficient in crude protein. Normal changes in dietary protein ranges do not consistently affect milk fat percentage.
What factors affect milk?
Several factors influence the quantity of milk produced during lactation. These include the amount of secretory tissue; lactation length; seasonal factors such as photoperiod, heat, and cold stress; seasonal changes in feed availability and quality of feed; persistency of lactation; and background genetics of the cow.
What are the factors affecting milk production?
Genetic background, climate, diseases, feeding, year and season of calving have been reported to affect milk production, lactation length and dry period [2, 3]. Breed, age, stage of lactation, parity and milking frequency also influence performance production [2, 3].
What are the factors affecting milk quality?
It’s all about comfort: The more comfortable the cow, the more milk it will produce. The less comfortable the cow, the less productive it is. Environmental factors include: Weather, climate and geography – Temperate climates with milder seasons put less stress on cows than climates with more extreme weather.
How does climate affect milk composition?
Higher Temperatures Dairy cows are sensitive to heat stress and high humidity. Exposure to either of these conditions negatively affects their milk production. Dairy animals also tend to eat less feed in higher temperatures, to reduce heat production from the digestion and metabolism of nutrients.
What is milk composition?
In general, the gross composition of cow’s milk in the U.S. is 87.7% water, 4.9% lactose (carbohydrate), 3.4% fat, 3.3% protein, and 0.7% minerals (referred to as ash). Milk composition varies depending on the species (cow, goat, sheep), breed (Holstein, Jersey), the animal’s feed, and the stage of lactation.