Effects of sumac and turmeric as feed additives on performance, egg quality traits, and blood parameters of laying hens

Abstract

The objective of this study was to investigate the effects of sumac and turmeric on performance, egg quality traits, and blood parameters of laying hens. Forty Lohman Brown hens at 30 weeks of age were distributed into four groups, consisting of five replicates with two hens in each. The experiment lasted for 42 days. Laying hens were fed different basal diets in treatment groups and control groups. The groups consisted of hens fed a basal diet with 0.5% sumac, a basal diet with 0.5% turmeric, and a basal diet with 0.25% sumac + 0.25% turmeric. Hens were given ad libitum access to feed and water during the experiment. The results revealed that there were no statistically significant differences in terms of final body weight, egg production, egg weight, and feed intake after the groups were fed according to the diets as 0.5% sumac, 0.5% turmeric, and 0.25% sumac + 0.25% turmeric. Addition of turmeric increased egg production and egg weight, but reduced the feed conversion ratio compared with the control group. On the other hand, dietary supplementation with sumac decreased egg weight. Shape index, yolk index, albumen index, Haugh unit, and yolk color parameters were also not affected by dietary supplementation of turmeric and sumac. When layers were fed the 0.25% sumac + 0.25% turmeric-supplemented diet, yolk index was higher in number, but Haugh unit and albumen index were lower. Dietary addition of sumac and turmeric does not have any negative influence on performance and egg quality traits of laying hens. Dietary treatments do not significantly affect blood serum cholesterol, alanine aminotransferase (ALT), and aspartate aminotransferase (AST) levels. With the supplementation of turmeric, AST and ALT levels are higher in number among all the groups. Dietary sumac and turmeric can be added at 0.5% level to laying hen rations without changing animal performance.

Growth, Carcass Composition, Haematology and Immunity of Broilers Supplemented with Sumac Berries (Rhus coriaria L.) and Thyme (Thymus vulgaris)

“…Previous studies have found reduced body weight at higher feeding rates than in this study [23]. Other studies with poultry have found reduced egg weight at relatively low levels [26], confirming reduced production in chickens. Thyme also reduced feed intake in our study, but only at 2%.…”

“…From these seven treatment groups, 1 bird/replicate was used for blood sampling, for immunity parameters a different bird was used from each replicate, and for carcass samples yet another bird was used from each replicate. The birds in the control group were given the basal diet, while those in treatment groups were given supplements as detailed below: Treatment 1: Basal diet (control); T1: Basal diet + thyme powder at 1% from days 29-42 T2: Basal diet + thyme powder at 2% from days 29-42 T3: Basal diet + thyme powder at 3% from days 29-42 S1: Basal diet + sumac powder at 1% from days 29-42 S2: Basal diet + sumac powder at 2% from days 29-42 S3: Basal diet + sumac powder at 3% from days [29][30][31][32][33][34][35][36][37][38][39][40][41][42] The basal diet consisted of a three-phase feeding program: starter feed from d 1-7, grower feed from d 8-24, and finisher feed from d [25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42]. The ingredients and nutrient composition of the diets are shown in Table 1.…”

“…Furthermore, improved titers against Newcastle Disease have been recorded, as well as substitution of E. coli by lactobacilli in the gastrointestinal tract [25]. However, when sumac was included at the level of 0.5% in layers' diet, reduced egg weight was reported [26].The benefits of feeding medicinal plants may be dose dependent, particularly given the low concentration of active ingredients in the plants. Hence, the purpose of our study was to investigate the effects of feeding sumac fruit and thyme whole plants in the powdered form at three inclusion rates in the diet on growth, carcass and organ characteristics, and immunity and hematology parameters of broiler chicks.…”

“…Furthermore, improved titers against Newcastle Disease have been recorded, as well as substitution of E. coli by lactobacilli in the gastrointestinal tract [25]. However, when sumac was included at the level of 0.5% in layers' diet, reduced egg weight was reported [26].…”

Pigmentantes vegetais e sintéticos em dietas de galinhas poedeiras Negras

“…O extrato de flor de marigold (Tagetes erecta) contém 12 g/kg de xantofilas, sendo 80 a 90% de luteína, um carotenoide amarelo. A páprica (Capsicum annuum) tem de 4 a 8 g/ kg de xantofilas, sendo 50 a 70% capsantina, um pigmento vermelho-alaranjado (GUMUS et al, 2018). Estes carotenoides advindos da alimentação são depositados fisiologicamente na gema do ovo.…”