Animal Science Lecture 4 - Animal Products: Dairy

based on the ability of mammals to produce milk blank the required to nourish their young

in excess of

what value used for human consumption?

high nutritional

What is interesting about the dairy industry?

over time, as the number of dairy cattle go down, total milk production slightly goes up, and pounds of milk per cow increase rapidly

what is milk?

a fluid secreted by the mammary glands of females for the nourishment of their young

What is colostrum?

it is the first milk. it has immune-protection and nutrition. the timing is CRITICAL because calf ability to absorb ig’s drops quickly due to “intestinal closure”. Ig’s no lonfer absurd and “closure” virtually complete 24 hours after birth.

What are milk producting animals and how much of the world’s comes from cows?

91% comes from cows

• goats

• sheep

• camels

• water buffalo

• reindeer

• yak

Why dairy cattle?

they connect non-edule feed to food, forages and by-prouct feeds, and increase quality of grains. They have environmental benefits of manure as fertilizer and erosion control. They are a source of meat, hides, and animal power

What nutritional merits does milk offer?

• hgihg quality protein/amino acids balance

• 72% dieatary calcium

• vit a fortified

• vit d fortifies

• source of vitamin b riboflavin

• source of energy

• source of minerals

• good taste

pasteurization

heating to kill microbes, ultra high temperature automated grid flow system maintained at 161F with a 15 sec transit time