In order to increase the milk yield of a dairy cow, producers should feed more nutrients to this cow during her pregnant stage so this cow can have more nutrient and energy storage in her body for use during her lactation stage later. Thus, producers can feed less to this cow during her lactation stage to save feed cost. 

Dietary nutrient requirements of animals can be expressed as nutrient or energy concentrations in a diet or as amounts of different nutrients for an animal per day.

We know, newborn piglets are susceptible to anemia. The reason for this is that the sow milk is usually low in the concentration of the following mineral.(A) Zinc(B) Magnesium (C) Sodium(D) Calcium(E) Iron

Which one of the following life processes has the highest priority for animals to use dietary energy?(A) Growth and Development(B) Reproduction(C) Life Maintenance(D) Activities, Work, or Production(E) Lactation

Before formulating a swine diet, swine nutritionists often refer to an “authoritative” book entitled “Nutrient Requirements of Swine”. The newest version of this book published in 2012 is 11th revised edition. Which organization or authors published this book? (A) NPB(B) 3 “authoritative” professors from 3 different universities(C) NPPC(D) NRC(E) USDA

Ghrelin, produced by ghrelinergic cells in the gastrointestinal tract, is called a “hunger hormone” because it acts on the hypothalamic brain cells to increase animal appetite. 

Insulin is a peptide hormone, while ghrelin is a steroid hormone.

An animal body loses water all the time because of the physiologically needed process of water turnover. Which one of the following describes the normal animal water losses?(A) Urination (B) Defecation (C) Respiration (D) Perspiration(E) All A, B, C, and D

The exchange of water between extra-cellular and intra-cellular fluids is realized through one of the following mechanisms.(A) Passive diffusion(B) Facilitated passive transport(C) Facilitated active transport(D) Endocytosis

A healthy human can afford to lose 5% of his/her body water, but cannot afford to lose more than 10% of his/her body water.