| Summary: | <p align="justify">Utilization effect of cassava (<em>Manihot esculenta</em>) and potatoe (<em>Ipomoea batatas</em>) on pigmentation, carotenoids pull on egg yolk and performance yield hens. Eight diets (T1:without pigment, T2: commercial pigment, T3: cassava meal 15%, T4: cassava meal 30%, T5: sweet potato meal 15%, T6: sweet potato meal 30%, T7: cassava and sweet potato meal 15% each, T8: cassava and sweet potato meal 25% each) in a randomized design using four replicates of three hens each during seven experimental periods were evaluated. Diets were iso-energetics (2.9 kcal/g) and iso-proteis (14.5% CP). Carotenoid concentrations (UV-visible chromatography) had differences (P&lt;0.01) among diets. Pigmentation (Fan Roche) and carotenoid concentration in egg yoks to come from cassava and sweet potato diets did not show differences (P&gt;0.05) A comparison with egg yolk to come from test diets signiï¬cant differences (P&lt;0.01) were detected. Diet with commercial pigment showed the highest pigmentation and carotenoid concentration in egg yolk. The other hand, there saw not differences (P&gt;0.05). A comparison with egg yolk to come from test diets signiï¬cant differences (P&lt;0.01) were detected. Diet with commercial pigment showed the highest pigmentation and carotenoid concentration in egg yolk. The other hand, there saw not differences (P&gt;0.05) between egg yolk to come from diet without pigment and cassava and sweet potato diets. Lutein, <img src="file:///C:/Documents%20and%20Settings/PIPE/Mis%20documentos/acta/Vol%2055%20No%203/7/images/vol%2055-3-ok_img_39.jpg" alt="" width="7" height="6" />-carotene, <img src="file:///C:/Documents%20and%20Settings/PIPE/Mis%20documentos/acta/Vol%2055%20No%203/7/images/vol%2055-3-ok_img_40.jpg" alt="" width="5" height="10" />-carotene, and 9-cis-<img src="file:///C:/Documents%20and%20Settings/PIPE/Mis%20documentos/acta/Vol%2055%20No%203/7/images/vol%2055-3-ok_img_41.jpg" alt="" width="5" height="10" />- carotene were the most importants carotenoids found in diets and egg yolk (HPLC). Cantoxatin was found in egg yolk and diet with commercial pigment only. Its concentration reached to 65% in proï¬le carotenes. Lutein was the main carotenoid in egg yolk, while <img src="file:///C:/Documents%20and%20Settings/PIPE/Mis%20documentos/acta/Vol%2055%20No%203/7/images/vol%2055-3-ok_img_42.jpg" alt="" width="5" height="10" />-carotene was the highest in all diets. Egg yolk that come from cassava and sweet potato 15% diet, showed the highest Retinol Equivalent provitamin A. Type and component egg, don&uml;t showed differences (P&gt;0.05). There were differences (P&lt;0.01) in yield performance.</p><p align="justify"><strong>key words:</strong> <em>Manihot esculenta, Ipomoea batatas</em>, Carotenoids, egg yolk, vitamin A, meals.</p><br><p align="center">&nbsp;</p><p align="justify">Se evaluaron ocho dietas iso-energ&eacute;ticas (2.9 Kcal/g) e iso-proteicas (14.5% CP) [(Sin pigmento comercial (t1); pigmento comercial (t2); harina de yuca al 15% (t3); harina de yuca al 30% (t4); harina de batata al 15% (t5); harina de batata al 30% (t6); harina de yuca m&aacute;s harina de batata al 15% cada una (t7) y harina de yuca m&aacute;s harina de batata al 25% cada una (t8)] en un dise&ntilde;o completamente al azar utilizando cuatro r&eacute;plicas de tres gallinas cada una durante siete periodos experimentales. La concentraci&oacute;n de carotenos totales (espectrofotometr&iacute;a UV-visible) present&oacute; deferencias (P&lt;0.01) entre las dietas. La pigmentaci&oacute;n (Abanico Roche) y la concentraci&oacute;n de carotenos en huevos provenientes de dietas con harinas de yuca y de batata no presentaron diferencias (P&gt;0.05); s&iacute; lo hicieron con las dietas testigo (P&lt;0.01). La dieta con pigmento comercial demostr&oacute; la m&aacute;s alta pigmentaci&oacute;n y concentraci&oacute;n de carotenoides en yema de huevo. No se observaron diferencias (P&gt;0.05) entre yemas provenientes de dieta sin pigmento y de dietas con harina de yuca y de batata. Luteina, <img src="file:///C:/Documents%20and%20Settings/PIPE/Mis%20documentos/acta/Vol%2055%20No%203/7/images/vol%2055-3-ok_img_35.jpg" alt="" width="9" height="8" />-caroteno, <img src="file:///C:/Documents%20and%20Settings/PIPE/Mis%20documentos/acta/Vol%2055%20No%203/7/images/vol%2055-3-ok_img_36.jpg" alt="" width="7" height="14" />-caroteno, 9-cis-<img src="file:///C:/Documents%20and%20Settings/PIPE/Mis%20documentos/acta/Vol%2055%20No%203/7/images/vol%2055-3-ok_img_37.jpg" alt="" width="7" height="14" />-caroteno fueron los m&aacute;s importantes carotenoides encontrados en dietas y en yemas de huevo (HPLC). Cantaxantina solo se encontr&oacute; en el testigo con pigmento comercial. La concentraci&oacute;n fue del 65% del perï¬l de carotenoides. Lute&iacute;na fue el principal carotenoide encontrado en yemas mientras que <img src="file:///C:/Documents%20and%20Settings/PIPE/Mis%20documentos/acta/Vol%2055%20No%203/7/images/vol%2055-3-ok_img_38.jpg" alt="" width="7" height="14" />-caroteno fue mayor en las dietas. Las yemas provenientes de dietas con harina de yuca y harina de batata al 15% tuvieron los m&aacute;s altos Equivalentes Retinol de provitamina A. El tipo y componentes del huevo no demostraron diferencias (P&gt;0.05). El desempe&ntilde;o productivo tuvo diferencias (P&lt;0.01). </p><p align="justify"><strong>Palabras clave:</strong> <em>Manihot esculenta, Ipomoea batatas</em>, Carotenoides, yemas de huevo, vitamina A, harinas.</p>
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