Showing papers on "Compensatory growth (organism) published in 1987"

Effect of compensatory growth on regulation of growth and lactation: response of dairy heifers to a stair-step growth pattern.

Abstract: The primary objective of this study was to improve the productive efficiency of growth via optimal use of both high fiber-low quality and high energy-high protein feeds in diets for growing dairy cattle. Twenty Holstein heifers were randomly assigned to either a control or treatment group. The control diet met the National Research Council (NRC) requirement for .45 kg/d gain, with heifers calving at 24 to 26 mo of age. The test groups were fed according to a 5-2-5-2 mo schedule in which the nutrient density was alternately 15% below or 40% above the NRC requirement. Results showed that the heifers on the test dietary regimen (compensatory growth) gained more and consumed less, resulting in significantly improved efficiency of growth (body gain/dry matter intake X 100), energy (body gain X 1,000/metabolizable energy (ME) intake) and protein utilization (body gain/protein intake X 100) in comparison to control animals (13.0 vs 7.3%; 57.9 vs 32.6 g/Mcal ME; 96.5 vs 54.2%, respectively). Marked changes in average concentration of urea-N, glucose, triglycerides, cholesterol and lecithin cholesterol acyltransferase activity in blood were seen for test heifers during the stair-step growth phase (i.e., alternating maintenance and compensatory). Evidence from this experiment suggests that the phased growth (stair-step) system offers a simple, practical and cost-effective method for raising dairy heifers.

The effect of early nutrient restriction on subsequent compensatory growth in market turkeys

Abstract: 75 INTRODUCTION 77 MATERIALS AND METHODS 79 RESULTS AND DISCUSSION 82 REFERENCES 97 SECTION III. EFFECT OF SEVERITY OF EARLY PROTEIN RESTRICTION AND REALIMENTATION ON LARGE TURKEY TOMS.. 1. PERFORMANCE CHARACTERISTICS AND LEG WEAKNESS 100 ABSTRACT 102