2005 Trials – List

WQS33 | WQS198 | ALTTEST | RETESTEARLY | RETESTLATE | GEM33 | GEM198

GEM279 | GEM287 | GEMNEW | NEWINB

WQS33

In 2005, WQS33 topcrosses were evaluated at two locations, Madison and Arlington. The 73 entries consisted of 67 S3+ families crossed to HC33 and 6 hybrid checks. There were 3 replications at each location.

The planting date at Madison was 5/4/2005. The Arlington trial was planted May 5/23/2005. The average planting densities were 29811 plants/acre at Madison and 30876 plants/acre at Arlington. The Madison trial was harvested on 9/8/2005. The Arlington trial was harvested on 9/27/2005.

Based on forage yield, 26 new WQS33 topcrosses were chosen for nutritional evaluation (WQS33 – Forage yield evaluation). Nutritional evaluations included assessment of neutral detergent fiber (NDF), in vitro true digestibility (IVD), in vitro NDF digestibility (IVNDFD), crude protein (CP), and starch concentration. Based on these values, milk/ton of forage and milk/acre were estimated based on MILK2000, which uses forage composition (NDF, IVD, IVNDFD, CP, and starch) to estimate potential milk production per ton of forage. Forage yield is then used to estimate potential milk per acre (WQS33 – Forage quality evaluation).

Sixteen families that appeared in WQS33 also appeared in trial WQS198. For a summary of performance over both testers see Two- tester WQS33/198 summary.

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WQS198

In 2005, WQS198 topcrosses were evaluated at two locations, Madison and Arlington. The 45 entries consisted of 39 S3+ families crossed to LH198 and 6 hybrid checks. There were 3 replications at each location.

The planting date at Madison was 5/4/2005. The Arlington trial was planted May 5/23/2005. The average planting densities were 27026 plants/acre at Madison and 28346 plants/acre at Arlington. The Madison trial was harvested on September 9/8/2005. The Arlington trial was harvested on 9/27/2005.

Based on forage yield, 22 new WQS198 topcrosses were chosen for nutritional evaluation (WQS198 – Forage yield evaluation). Nutritional evaluations included assessment of neutral detergent fiber (NDF), in vitro true digestibility (IVD), in vitro NDF digestibility (IVNDFD), crude protein (CP), and starch concentration. Based on these values, milk/ton of forage and milk/acre were estimated based on MILK2000, which uses forage composition (NDF, IVD, IVNDFD, CP, and starch) to estimate potential milk production per ton of forage. Forage yield is then used to estimate potential milk per acre (WQS198– Forage quality evaluation).

Sixteen families that appeared in WQS198 also appeared in trial WQS33. For a summary of performance over both testers see Two- tester WQS33/198 summary.

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ALTTEST

In 2005, ALTTEST topcrosses were evaluated at two locations, Madison and Arlington. The 32 entries consisted of 25 S6+ families crossed to LH332 and TR7245 and 7 hybrid checks. There were 2 replications at each location.

The planting date at Madison was 5/4/2005. The Arlington trial was planted 5/23/2005. The average planting densities were 30546 plants/acre at Madison and 31350 plants/acre at Arlington. The Madison trial was harvested on 9/8/2005. The Arlington trial was harvested on 9/27/2005.

Based on forage yield, 13 ALTTEST topcrosses were chosen for nutritional evaluation (ALTTEST – Forage yield evaluation). Nutritional evaluations included assessment of neutral detergent fiber (NDF), in vitro true digestibility (IVD), in vitro NDF digestibility (IVNDFD), crude protein (CP), and starch concentration. Based on these values, milk/ton of forage and milk/acre were estimated based on MILK2000, which uses forage composition (NDF, IVD, IVNDFD, CP, and starch) to estimate potential milk production per ton of forage. Forage yield is then used to estimate potential milk per acre (ALTTEST – Forage quality evaluation).

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RETESTEARLY

In 2005, RETESTEARLY topcrosses were evaluated at two locations, Madison and Arlington. The 27 entries consisted of 22 S3+ families crossed to several testers and 5 hybrid checks. There were 3 replications at each location.

The planting date at Madison was 5/4/2005. The Arlington trial was planted May 5/23/2005. The average planting densities were 30009 plants/acre at Madison and 30486 plants/acre at Arlington. The Madison trial was harvested on September 9/2/2005. The Arlington trial was harvested on 9/23/2005.

Based on forage yield, 7 RETESTEARLY topcrosses were chosen for nutritional evaluation (RETESTEARLY – Forage yield evaluation). Nutritional evaluations included assessment of neutral detergent fiber (NDF), in vitro true digestibility (IVD), in vitro NDF digestibility (IVNDFD), crude protein (CP), and starch concentration. Based on these values, milk/ton of forage and milk/acre were estimated based onMILK2000, which uses forage composition (NDF, IVD, IVNDFD, CP, and starch) to estimate potential milk production per ton of forage. Forage yield is then used to estimate potential milk per acre (RETESTEARLY – Forage quality evaluation).

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RETESTLATE

In 2005, RETESTLATE topcrosses were evaluated at two locations, Madison and Arlington. The 33 entries consisted of 26 S3+ families crossed to LH198, LH244, and LH332, and 7 hybrid checks. There were 3 replications at each location.

The planting date at Madison was 5/4/2005. The Arlington trial was planted May 5/23/2005. The average planting densities were 28924 plants/acre at Madison and 31127 plants/acre at Arlington. The Madison trial was harvested on September 9/7/2005. The Arlington trial was harvested on 10/4/2005.

Based on forage yield, 21 RETESTLATE topcrosses were chosen for nutritional evaluation (RETESTLATE– Forage yield evaluation). Nutritional evaluations included assessment of neutral detergent fiber (NDF), in vitro true digestibility (IVD), in vitro NDF digestibility (IVNDFD), crude protein (CP), and starch concentration. Based on these values, milk/ton of forage and milk/acre were estimated based onMILK2000, which uses forage composition (NDF, IVD, IVNDFD, CP, and starch) to estimate potential milk production per ton of forage. Forage yield is then used to estimate potential milk per acre (RETESTLATE– Forage quality evaluation).

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GEM33

In 2005, GEM33 topcrosses were evaluated at two locations, Madison and Arlington. The 67 entries consisted of 61 S5+ families crossed to HC33 and 6 hybrid checks. There were 2 replications at each location.

The planting date at Madison was 5/4/2005. The Arlington trial was planted 5/23/2005. The average planting densities were 29288 plants/acre at Madison and 30657 plants/acre at Arlington. The Madison trial was harvested on 9/9/2005. The Arlington trial was harvested on 10/5/2005.

Based on forage yield, 29 GEM33 topcrosses were chosen for nutritional evaluation (GEM33– Forage yield evaluation). Nutritional evaluations included assessment of neutral detergent fiber (NDF), in vitro true digestibility (IVD), in vitro NDF digestibility (IVNDFD), crude protein (CP), and starch concentration. Based on these values, milk/ton of forage and milk/acre were estimated based on MILK2000, which uses forage composition (NDF, IVD, IVNDFD, CP, and starch) to estimate potential milk production per ton of forage. Forage yield is then used to estimate potential milk per acre (GEM33– Forage quality evaluation).

Twenty-six families that appeared in GEM33 also appeared in trial GEM198. For a summary of performance over both testers see Two- tester GEM33/198 summary.

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GEM198

In 2005, GEM198 topcrosses were evaluated at two locations, Madison and Arlington. The 68 entries consisted of 62 S5+ families crossed to LH198 and 6 hybrid checks. There were 2 replications at each location.

The planting date at Madison was 5/4/2005. The Arlington trial was planted 5/23/2005. The Madison trial was abandoned due to low plant density. The average plant density at Arlington was 27262 plants/acre. The Arlington trial was harvested on 10/5/2005

Based on forage yield, 30 new GEM198 topcrosses were chosen for nutritional evaluation (GEM198 – Forage yield evaluation). Nutritional evaluations included assessment of neutral detergent fiber (NDF), in vitro true digestibility (IVD), in vitro NDF digestibility (IVNDFD), crude protein (CP), and starch concentration. Based on these values, milk/ton of forage and milk/acre were estimated based on MILK2000, which uses forage composition (NDF, IVD, IVNDFD, CP, and starch) to estimate potential milk production per ton of forage. Forage yield is then used to estimate potential milk per acre (GEM198– Forage quality evaluation).

Twenty-six families that appeared in GEM198 also appeared in trial GEM33. For a summary of performance over both testers see Two- tester GEM33/198 summary.

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GEM279

In 2005, GEM279 topcrosses were evaluated at two locations, Madison and Arlington. The 113 entries consisted of 108 S4+ families crossed to LH279 and 5 hybrid checks. There were 2 replications at each location.

The planting date at Madison was 5/4/2005. The Arlington trial was planted5/23/2005. The average planting densities were 30183 plants/acre at Madison and 30864 plants/acre at Arlington. The Madison trial was harvested on 9/2/2005. The Arlington trial was harvested on 9/23/2005.

Based on forage yield, 13 new GEM279 topcrosses were chosen for nutritional evaluation (GEM279 – Forage yield evaluation). Nutritional evaluations included assessment of neutral detergent fiber (NDF), in vitro true digestibility (IVD), in vitro NDF digestibility (IVNDFD), crude protein (CP), and starch concentration. Based on these values, milk/ton of forage and milk/acre were estimated based on MILK2000, which uses forage composition (NDF, IVD, IVNDFD, CP, and starch) to estimate potential milk production per ton of forage. Forage yield is then used to estimate potential milk per acre (GEM279 – Forage quality evaluation).

Eleven families that appeared in GEM279 also appeared in trial GEM287. For a summary of performance over both testers see Two- tester GEM279/287 summary.

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GEM287

In 2005, GEM287 topcrosses were evaluated at two locations, Madison and Arlington. The 104 entries consisted of 99 S4+ families crossed to LH287 and 5 hybrid checks. There were 2 replications at each location.

The planting date at Madison was 5/4/2005. The Arlington trial was planted 5/23/2005. The average planting densities were 30124 plants/acre at Madison and 30515 plants/acre at Arlington. The Madison trial was harvested on 9/6/2005. The Arlington trial was harvested on 9/29/2005.

Based on forage yield, 20 new GEM287 topcrosses were chosen for nutritional evaluation (GEM287– Forage yield evaluation). Nutritional evaluations included assessment of neutral detergent fiber (NDF), in vitro true digestibility (IVD), in vitro NDF digestibility (IVNDFD), crude protein (CP), and starch concentration. Based on these values, milk/ton of forage and milk/acre were estimated based on MILK2000, which uses forage composition (NDF, IVD, IVNDFD, CP, and starch) to estimate potential milk production per ton of forage. Forage yield is then used to estimate potential milk per acre (GEM287– Forage quality evaluation).

Eleven families that appeared in GEM287 also appeared in trial GEM279. For a summary of performance over both testers see Two- tester GEM279/287 summary.

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GEMNEW

In 2005, GEMNEW topcrosses were evaluated at two locations, Madison and Arlington. The 30 entries consisted of 24 S3+ families crossed to several testers and 6 hybrid checks. There were 2 replications at each location.

The planting date at Madison was 5/4/2005. The Arlington trial was planted 5/23/2005. The average planting densities were 28967 plants/acre at Madison and 28750 plants/acre at Arlington. The Madison trial was harvested on 9/12/2005. The Arlington trial was harvested on 10/4/2005.

Based on forage yield, 22 GEMNEW topcrosses were chosen for nutritional evaluation (GEMNEW – Forage yield evaluation). Nutritional evaluations included assessment of neutral detergent fiber (NDF), in vitro true digestibility (IVD), in vitro NDF digestibility (IVNDFD), crude protein (CP), and starch concentration. Based on these values, milk/ton of forage and milk/acre were estimated based on MILK2000, which uses forage composition (NDF, IVD, IVNDFD, CP, and starch) to estimate potential milk production per ton of forage. Forage yield is then used to estimate potential milk per acre (GEMNEW – Forage quality evaluation).

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NEWINB 2005

In 2005, NEWINB topcrosses were evaluated at three locations, Madison, Arlington, and Eau Claire. The 40 entries consisted of crosses of our 5 recently released lines (W601S – W605S) with 6 testers (HC33, LH198, LH227, LH244, LH332, and TR7245), along with three hybrid checks. There were 3 replications at each location. The planting date at Madison was 5/4/2005. The Arlington trial was planted 5/23/2005, and the Eau Claire trial was planted on 4/29/05. The average planting densities were 30855plants/acre at Madison, 31283 plants/acre at Arlington, and 29621 at Eau Claire. The Madison trial was harvested on 9/2/2005. The Arlington trial was harvested on 9/23/2005, and the Eau Claire trial was harvested on 9/15/05. All NEWINB topcrosses will undergo nutritional evaluation (NEWINB – Forage yield evaluation). Nutritional evaluations include assessment of neutral detergent fiber (NDF), in vitro true digestibility (IVD), in vitro NDF digestibility (IVNDFD), crude protein (CP), and starch concentration. Based on these values, milk/ton of forage and milk/acre were estimated based on MILK2000, which uses forage composition (NDF, IVD, IVNDFD, CP, and starch) to estimate potential milk production per ton of forage. Forage yield is then used to estimate potential milk per acre (NEWINB – Forage quality evaluation).

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