Correction to: Productive, nutritional, and metabolic performance of Chino Santandereano cattle receiving different degrees of protein-energy supplementation

Abstract The objective of this study was to determine the best nutritional strategy for weaned calves at dry-to-rainy transition and rainy season and their effects on the growing phase. One hundred sixteen Nellore weaned males (initial BW of 173±23 kg; 10 months) were used in a randomized complete block design (blocked by BW) in a 2×2 factorial arrangement of treatments (divided in 12 lots with 9 or 10 animals/lot). Factor 1 was the strategy in the dry-to-rainy season transition (period I; pasture vs. drylot) and factor 2 was the strategy for the rainy season [period II; mineral salt ad libitum (MS) vs. supplement 3 g/kg BW]; consisting of four treatments: pasture in period I and MS in period II; pasture in period I and protein-energy supplement in period II (PEII); drylot in period I and mineral salt in period II; drylot in period I and PEII. At period I, all animals received a protein-energy supplementation (5 g/kg BW). The experiment lasted 244 days. Data were analyzed using the PROC MIXED of SAS. In period I, animals from drylot had highest final BW and ADG (P < 0.01; Table 1). There was no interaction among factors (P ≥ 0.772) in period II. In period II, ADG and carcass gain were highest from pasture animals (P < 0.01). Final BW and HCW were similar (P >0.788) at the end of period II, showing that animals recovery BW. Among strategies at rainy season, animals fed PEII had greater final BW and ADG (P < 0.01). Overall growing phase, HCW and carcass gain were greater for animals fed PEII (P < 0.01). Regardless of the strategy used in the dry-to-rainy season transition, animals were able to equalize final BW at the end of growing phase. In addition, protein-energy supplement at rainy season improves animal performance at the end of growing phase.

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PREDICTING THE EFFICACY OF PROTEIN-ENERGY SUPPLEMENTATION IN FRAIL OLDER ADULTS LIVING IN COMMUNITY

Journal of Frailty & Aging ◽

10.14283/jfa.2014.13 ◽

2014 ◽

pp. 1-6

Author(s):

C.O. KIM

Keyword(s):

Older Adults ◽

Nutritional Assessment ◽

Linear Regression Analysis ◽

Mini Nutritional Assessment ◽

Community Dwelling ◽

Home Healthcare ◽

Post Intervention ◽

Frail Older Adults ◽

Protein Energy ◽

Energy Supplementation

Background:Protein-energy malnutrition is a major cause of functional decline in the elderly and isclearly an important component of frailty. However, limited evidence is available about how to select frailindividuals most benefiting from protein-energy supplementation. Objectives:1) To investigate factors associatedwith stronger benefits from protein-energy supplementation, and 2) to test the hypothesis that the severity offrailty is associated with the efficacy of protein-energy supplementation. Design:Secondary analysis of data froma pre-post-intervention study and a clinical trial. Setting:National Home Healthcare Services in Gangbuk-gu,Seoul, South Korea. Participants:123 community-dwelling frail older adults [usual gait speed (UGS) <0.6m/secand Mini Nutritional Assessment (MNA) <24]. Intervention:Each participant was received with two 200 mL perday of commercial liquid formula (providing additional 400 kcal of energy and 25 g of protein per day) for 12weeks. Measurements:Relative change in the Physical Functioning (PF) and Short Physical Performance Battery(SPPB) score between the baseline and 12-week follow-up assessments were measured. Results:Multilevelmixed-effect linear regression analysis showed that a lower level of baseline UGS was associated with a greaterimprovement in PF and SPPB score after adjustment for age, gender, education, living status, beneficiary ofpublic assistance, number of chronic diseases, compliance, and type of dataset (p<0.001). A lower level ofbaseline MNA score was associated with greater change in PF and SPPB score after adjustment for multiplecovariates (p<0.045). Participants with severe frailty (UGS <0.3 m/sec + MNA <17) showed 52.4% and 44.6%more relevant improvements in PF and SPPB score, respectively, than those with mild frailty (UGS 0.3-0.6 m/sec+ MNA 17-24) (p<0.001). Conclusion:Slower UGS and lower MNA score are independently associated with thegreater efficacy of protein-energy supplementation on functional status.

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