Protein requirement of baby pigs

Protein requirement of baby pigs on low-fat diets.

For some time studies have been made in this laboratory on the use of the baby pig as an experimental animal, and during this work diets low in fat have been found to support satisfactory performance (Tribe, 1954; McCrea & Tribe, 1956). This finding is somewhat surprising in view of the fact that sow’s milk is very rich in fat. For routine rearing of piglets a low-fat diet is preferable to one ...

Protein and Fat Requirements of Baby Pigs

Valine requirement of nursery pigs.

Six experiments were conducted to determine the true digestible valine requirement of 5- to 20-kg pigs. In Exp. 1, a valine-deficient diet for 5- to 10-kg pigs was developed and validated in terms of growth performance in response to supplemental L-valine. A different basal diet was validated for 10- to 20-kg pigs in Exp. 2. Both diets were demonstrated to be deficient in valine and to support ...

The tryptophan requirement of nursery pigs.

Five experiments were conducted to determine the true digestible Trp (dTrp) requirement of nursery pigs. Treatments were replicated with four or five pens of five or six pigs each. Pigs were weaned at 21 (Exp. 1, 2, and 5) or 19 d (Exp. 3 and 4), and fed common diets for various times and then experimental diets for 8 (Exp. 1), 13 (Exp. 2 and 3), or 14 d (Exp. 4 and 5). Experiment 1 (160 pigs, ...

Lysine requirement for maintenance in growing pigs

Probably due to methodological problems the knowledge about the AA requirement for maintenance in pigs is rather scarce. In the present study an alternative experimental approach was applied and its underlying hypothesis was tested, whether protein retention decreases with body weight (BW), when daily lysine intake remains constant and acts as the limiting factor for protein retention, and whet...