Effect of Dietary Dehydrated Pasture and Citrus Pulp on the Performance and Meat Quality of Broiler Chickens

Abstract

Some feedstuffs containing significant levels of fiber may be a good source of bioactive compounds that may contribute to improving broiler meat quality. However, high fiber level can have a negative impact on broiler performance. A study was undertaken to investigate the impact of incorporating citrus pulp (5 or 10%) or dehydrated pasture (5 or 10%) on the performance, carcass yield, and characteristics of broiler chickens. A diet containing neither citrus pulp nor dehydrated pasture was used as control. The results on growth performances showed that daily weight gain was reduced by 26% in birds of the 10% citrus pulp treatment (P<0.05). Compared with the control treatment, increases in feed intake occurred in birds consuming diets with 5 or 10% citrus pulp, which resulted in significantly higher feed conversion rates with the 10% level. Under the same incorporation rate, dehydrated pasture had effects less evident on the performances of broiler chicken. In addition, diets containing citrus pulp, displaying higher percentages of soluble nonstarch polysaccharides, increased small intestine relative length, and reduced carcass yield. Inclusion of 10% dehydrated pasture in diets resulted in improved breast skin yellowness (P<0.05). Finally, the results revealed that incorporation of the nonstarch polysaccharide-rich feedstuffs had a major impact on the fatty acid profile (affected 16 of 21 fatty acids) of broiler meat. Polyunsaturated fatty acids content in meat was higher in birds consuming the highest levels of both citrus pulp and dehydrated pasture, leading to increased ratios of polyunsaturated to saturated fatty acids. Together, the results suggest that incorporation of moderate levels of dehydrated pastures in poultry diets has a minor impact on broiler performance and can contribute significantly to improve breast skin yellowness and fatty acid composition of meat.

Effect of citron by-product fermented with beneficial bacteria as a functional feed additive for Korean native steers

“…Meat fatty acid profile and cholesterol concentration are considered as the pivotal role in human diet as they have hypercholesterolemic properties, which are associated with coronary heart diseases (Daley et al, 2010), while dietary n-3 fatty acids including α-linolenic acid and its metabolites reduce the risk of heart disease (De Lorgeril et al, 1994). The increased concentrations of SFA (stearic acid) and UFA (myristoleic acid, α-linolenic acid, eicosatrienoic acid, arachidonic acid) in CPB dietary group (Table 8) supported the findings of Mourão et al (2008). They reported palmitic and stearic acids as the predominant fatty acids found in chicken meat as SFA, whereas linoleic and arachidonic acid as PUFA when supplied citrus byproduct in broiler diet.…”

“…The increased concentration of total n-3 PUFA and the decreased ratio of n-6/n-3 in CPB dietary supplementation might have been due to the synergism of probiotic strains and CJ (Table 8). Supplementation of dietary citrus pulp increased meat PUFA concentration in broiler (Mourão et al, 2008). Paengkoum et al (2011) found a reduced ratio of n-6/n-3 fatty acid in meat when supplemented with Lactobacillus and Saccharomyces fermented feed in broilers and goats.…”

Vitamin E is the major contributor to the antioxidant capacity in lambs fed whole dried citrus pulp

“…We found that feeding lambs with the diet containing 35% DCP (CIT) increased the concentration of α-tocopherol in plasma (P < 0.05) and resulted in a twofold and threefold greater concentration of α-tocopherol in liver and in muscle, respectively (P < 0.05 and P < 0.01 for liver and muscle, respectively; Table 2). Mourão et al (2008) found that the inclusion of 5% or 10% DCP in the diets of broilers did not affect the concentration of α-tocopherol in muscle compared with a conventional cerealbased diet. To our knowledge, no information has been previously reported on the effect of feeding CP to ruminants on the vitamin E concentration in the tissues.…”

Effect of dietary graded levels of dried lemon (citrus aurantifulia) pulp on performance, intestinal morphology, and humoral immunity in broiler chickens

“…On the contrary, Chaudry et al (2004) have shown that chickens receiving citrus peel had similar feed consumption to the birds in CON group. Otherwise, the increased DFI of broilers has been observed after dietary inclusion of citrus pulp or DLP (Mourão et al 2008;Nobakht 2013). The lower DFI of chickens in our study might lead to reduced DWG and BW following supplementation with DLP.…”

“…Furthermore, Nobakht (2013) indicated that dried lemon pulp (DLP) improved growth performance of chickens across the entire production period. Moreover, citrus pulp was indicated to expand the gastrointestinal tract in broiler chickens (Mourão et al 2008). Nevertheless, effects of dried lemon pulp (DLP; citrus aurantifulia) on the morphology of small intestine and humoral immunity in broilers are less investigated.…”