Abstract
<span style="color: rgb(0, 0, 0); font-family: "Times New Roman", serif; font-size: 13.3333px; text-indent: 24px; background-color: rgb(241, 241, 241);">The use of alfalfa and similar forages in poultry products is often limited due to the detrimental effects of high-fiber ingredients on non-ruminant animal performance. Despite this, inclusion of alfalfa hay, specifically late-cutting hay, may confer health benefits that protect against the damaging effects of coccidiosis in poultry. The study objective was to examine performance outcomes in Ross 708 broilers fed 5% 5</span><span style="font-size: 10px; line-height: 0; position: relative; vertical-align: baseline; top: -0.5em; color: rgb(0, 0, 0); font-family: "Times New Roman", serif; text-indent: 24px; background-color: rgb(241, 241, 241);">th</span><span style="color: rgb(0, 0, 0); font-family: "Times New Roman", serif; font-size: 13.3333px; text-indent: 24px; background-color: rgb(241, 241, 241);">-cutting alfalfa hay during a coccidiosis challenge. A total of 144 birds were assigned to a corn-soybean meal control or diet with 5% inclusion of ground 5</span><span style="font-size: 10px; line-height: 0; position: relative; vertical-align: baseline; top: -0.5em; color: rgb(0, 0, 0); font-family: "Times New Roman", serif; text-indent: 24px; background-color: rgb(241, 241, 241);">th</span><span style="color: rgb(0, 0, 0); font-family: "Times New Roman", serif; font-size: 13.3333px; text-indent: 24px; background-color: rgb(241, 241, 241);"> cutting alfalfa hay for 42d divided into 14d starter, grower, and finisher periods. At 14d, half of the birds were orally inoculated with 10X Coccivac® B-52 vaccine with a 2x2 factorial treatment arrangement of diet and inoculation. Body weight (BW) and feed intake (FI) was recorded weekly to calculate average performance outcomes. Prior to inoculation, 5% alfalfa did not negatively impact performance but increased week 2 FI by 5.1% (</span><i style="color: rgb(0, 0, 0); font-family: "Times New Roman", serif; font-size: 13.3333px; text-indent: 24px; background-color: rgb(241, 241, 241);">P</i><span style="color: rgb(0, 0, 0); font-family: "Times New Roman", serif; font-size: 13.3333px; text-indent: 24px; background-color: rgb(241, 241, 241);"> = 0.04). As expected, coccidiosis reduced performance in week 3 (</span><i style="color: rgb(0, 0, 0); font-family: "Times New Roman", serif; font-size: 13.3333px; text-indent: 24px; background-color: rgb(241, 241, 241);">P</i><span style="color: rgb(0, 0, 0); font-family: "Times New Roman", serif; font-size: 13.3333px; text-indent: 24px; background-color: rgb(241, 241, 241);"> < 0.05). Alfalfa inclusion did not alter coccidiosis-induced performance outcomes; however, numerical differences observed in non-inoculated birds supports future research into the benefits of feeding late-cutting alfalfa and its products to poultry.</span>
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