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Research Trials: The effect of Paylean on average daily gain

by 5m Editor
30 May 2001, at 12:00am

This article is a summary of five recent commercial trials which shows that feeding Paylean increases average daily gain across the entire population. The research highlights a greater percentage of pigs moved into a higher average daily gain category and because pigs gain faster, they gain more in the allotted time with more reaching their full-value weight range.

Improved Average Daily Gain puts you in control

A summary of five recent commercial trials 1 (see figures 1 and 2 inside) showed that feeding Paylean® increased average daily gain (ADG) across the entire population. That means you can get more pigs in the box at the packer’s maximum value weight range. And because Paylean gets them to target weights faster, you have more control over the flow of your operation.

By increasing ADG, more of your pigs (even lightweights) will reach full market value in the allotted time. Reduce lightweight pigs. Clean out your barns sooner and take more full-value pigs to market. Get the most out of your assets. Run more pounds of pork through your operation or extend barn clean out time between loads–whichever fits your operation. Tighten the marketing window. Sending loads to market closer together reduces profit uncertainty.
Paylean shifts pig populations into higher ADG categories


Paylean improves performance from the first week

Results from a controlled research trial (see figures 3, 4 and 5 inside) conducted in late 2000 confirms the total weight gain, ADG and F/G benefits of Paylean over a 1- to 5-week feeding period. In each case, the Paylean advantage over control started with impressive results after just the first week, and continued through week 5. In order to accommodate your barn closeout schedules, Elanco recommends that you feed Paylean so that the majority of your pigs receive it for approximately 4 weeks prior to marketing.

Regardless of the weight variation in your opera-
tion, every pig will gain value when fed Paylean.

Figure 1. demonstrates that all pigs in your operation (from the lightest to the heaviest) will benefit from Paylean. The chart shows Paylean response based on initial weight (0-20 represents the lightest 20%, 21-40 represents the next heavier 20%, and so on). All groups showed a minimum advantage of 2 lbs.
Regardless of the weight variation in your operation, every pig will gain value when fed Paylean.


Because pigs gain faster, they gain more in the allotted time and more of them reach full-value weight ranges.
Figure 2. shows the distribution of a pig population when measured by average daily gain (ADG). A greater percentage of pigs moved into higher ADG categories when fed Paylean.
Because pigs gain faster, they gain more in the allotted time and more of them reach full-value weight ranges.


Even pigs fed Paylean for only 1 week showed a weight advantage over control.
Figure 3. illustrates the total gain response for each treatment over time. Pigs fed Paylean consistently reached higher total weights than control pigs.
Even pigs fed Paylean for only 1 week showed a weight advantage over control.


Pigs fed Paylean reach heavier weights in the allotted amount of time or get to target weights faster.
Figure 4. shows that one week’s worth of Paylean at 4.5 g/ton improves ADG an impressive .58 lbs. The performance advantage remains through week 5.
Pigs fed Paylean reach heavier weights in the allotted amount of time or get to target weights faster.


Reduce feed costs from the first week to the last load.
Figure 5. The F/G advantage of pigs fed Paylean is significant from week 1 through week 5. Getting your pigs on Paylean for any length of time will help you reduce feed costs.
Reduce feed costs from the first week to the last load.


Methodology: five commercial feeding trials 1

Data collection and analysis
Individual pig weights were taken at the initiation of the trial and after six weeks of treatment. Pigs were weighed by pen when treatments were assigned and after 14, 28 and 42 days of treatment. Feed disappearance by pen was determined on days 14, 28 and 42 of treatment. The data was analyzed comparing treated and control pigs on an equal time basis using analysis of variance. The trial by treatment interaction was used as the error term in the model.
Five trials were completed in commercial research farms. Genetics commonly found in the industry were used with one genetic type at each trial location. The genetics used were PIC, Dekalb, PIC X Newsham and a purebred cross. The selected farms had historical growth performance that was similar to industry average (1.6 to 1.8 lb./day). Pigs in the individual trials were within one week of age and were grown in groups of 1,000 head or more. Light and heavy pigs were not removed during the trial except for health reasons.

Trial design and treatments
Trials utilized a completely randomized design. The control and Paylean diets did not contain feed grade antibiotics. Treatments were randomly assigned by pen and stratified across weight and sex. The trials were equal time trials. Treatments were applied to achieve a six-week feeding duration and meet a target average ending weight of 240 lbs.

Diets
Pigs on all programs were fed diets that were at least 16% crude protein. The total dietary lysine concentration during the first three weeks of the trial was increased by 25% compared to the lysine concentration normally fed to pigs of a similar weight. During weeks 4 to 6, total dietary lysine concentration was increased by 20% from the typical lysine concentration fed to pigs of similar weight. Standard formulations for Ca and P were increased by 15% over the concentrations used in commercial formulations and vitamin and trace mineral formulations were increased by 10%.

Pig health and management
The herd veterinarian and the Elanco Animal Health monitor managed the health of the experimental pigs. Disease therapies (injectable and water soluble) were allowed as per label or veterinary prescription according to the farms’ normal procedures.

Methodology: controlled research trial 2

Data analysis
Data were analyzed by ANOVA using the GLM procedure of SAS. The dependent variables during the experimental phase included initial weight, final weight, total gain, ADG, ADFI, and feed efficiency. Total gain, ADG, ADFI, and feed efficiency were calculated from d 0 of the experimental phase to the day of shipping for each “time on test”0 period.
This trial was designed to evaluate various Paylean concentrations and feeding durations on live animal performance and carcass quality / composition of finishing hogs. This report only contains information regarding the live animal phase of this trial; carcass information will be reported separately. This trial was completed at Elanco Animal Health’s Swine Research Complex in Greenfield, Indiana. Pigs were from Dekalb EB and Dekalb 83 terminal sire lines and Dekalb 43 and 45 maternal lines, which were obtained from commercial producers.

Trial design
Barrows were assigned to pens based on weight to achieve six weight blocks of sixteen pens. The lightest block averaged 175.5 pounds and the heaviest block averaged 228.3 pounds at the initiation of the experi-mental phase, in an attempt to achieve our feeding durations and an experiment-wide average final slaughter weight of 240 pounds. This study was designed and conducted as an equal time trial.

Diets
The diet during the acclimation phase was SW-30 (18.5% CP, 1.13% lysine, and 1463 kcal ME/lb; Appendix 1) and contained 40 grams Tylan per ton. All experimental diets were also based on SW-30 with the appropriate amount of Paylean (9 g/lb) added to make up the experimental treatments. Throughout the experiment, pigs had ad libitum access to feed and water.

Further Information

The following information is also available on Paylean:

Paylean Fact Sheet

How to use Paylean

Impact and Use of Paylean in Market Pigs

Optimal Paylean sequence when fed to late-finishing swine

Producers Pinpoint Paylean's Performance


References:

1. Performance research trials (T4VS10001S, T4VS10001W, T4VS40004, T4VS40002, T4VS50006) were conducted during January-March 2000 at five different commercial locations, representing approximately 5,000 pigs. Trials T4Vs10001S and T4VS10001W were separate trials run under a common research trial agreement. All data was collected separately at the two sites.

2. Performance research trial (T4V660060) was conducted during November-December 2000 at a controlled research facility.

PAYLEAN® is a trademark for Elanco’s brand of ractopamine. - Always read and follow label directions for proper mixing and handling. - Approved only for use in swine.
Elanco Animal Health, Four Parkwood, Suite 125, 500 East 96th Street, Indianapolis, IN 46240
[email protected], For more information: 1-800-428-4441


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