Effect of Protein level and Dietary Energy on Production, Intestinal Morphology and Carcass Yield of Meat Duck during Starter Phase of 14 days

Sritiawtha, Eakapon; Sakulthai, Surapat; Sakdee, J.; Bunchasak, Chaiyapoom; Kaewtapee, C.; Poeikhamph, Theerawit

doi:10.3923/jas.2013.315.320

Cited by 5 publications

(4 citation statements)

References 7 publications

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“…In the present study, reducing dietary CP up to 2% plus supplementation with amino acids led to better duodenum and jejunum villi height as compared with the other treatments (Table 6). Thus, this result was in agreement with Sritiawthai et al (2013), who claimed that ducks that received 18% CP also had higher villus height in duodenum and jejunum as compared with higher CP levels. However, this result contradicted Abbasi et al (2014), who found that a reduction in dietary CP led to significantly lowered jejunal villi height and shallowed crypt depth in broiler chickens.…”

Section: Discussionsupporting

confidence: 92%

Gut microflora and intestinal morphology changes of broiler chickens fed reducing dietary protein supplemented with lysine, methionine, and threonine in tropical environment

et al. 2019

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Non-ruminantsFull-length research article Gut microflora and intestinal morphology changes of broiler chickens fed reducing dietary protein supplemented with lysine, methionine, and threonine in tropical environment ABSTRACT -This experiment aimed to discover the effect of reducing dietary protein supplemented with lysine, methionine, and threonine on growth performance, volatile fatty acid profile, and intestinal villus height and crypt depth of broilers, as well as the microflora counts isolated from broiler chicken faeces. A total of 288-day-old broilers were allocated to eight treatments with six replicates consisting of 36 birds per treatment. The diets contained dietary protein from 21 to 18% in starter diet and 18 to 16% in finisher diet supplemented with L-lysine, DL-methionine, and L-threonine at the same ratio for all dietary treatments. Body weight and feed intake were determined, and feed conversion ratio was calculated. Blood, intestine, and digesta samples were collected at 21 and 42 days for further analysis. Dietary protein supplemented with amino acids improved growth performance, reduced pathogenic bacteria, and increased beneficial bacteria counts, small intestine villi height and crypt depth, and ileal-digesta volatile fatty acid concentrations of broiler chickens. However, reducing 2% of dietary protein supplemented with lysine, methionine, and threonine showed the best results, especially in growth performance, feed conversion ratio, microflora count, duodenal and jejunal villi height, and ileal-digesta volatile fatty acid concentrations, such as butyric and valeric acids. It is believed that by reducing the level of dietary protein in broiler diet while supplementing with synthetic amino acid may enhance the intestinal morphology, nutrient digestibility, and absorption in broiler chickens and will simultaneously result in better performance.

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Section: Discussionsupporting

confidence: 92%

Gut microflora and intestinal morphology changes of broiler chickens fed reducing dietary protein supplemented with lysine, methionine, and threonine in tropical environment

et al. 2019

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“…The physical composition parameters of the carcass, such as meat, bone, skin, and meat : bone ratio, were not affected by the level of use of golden snail meal (P>0.05 ; Table 5). The present finding is in agreement with those of [12], who reported that there was no significant difference in the physical composition of carcasses such as meat, bone, skin, and the ratio of meat : bone with substitution golden snail meal to fish meal up to 100%. In contrast to the study according to [33] stated that dietary CP concentration and AA density had an impact on body weight and duck breast meat yield at 28, 32, and 35 days of age where ducks fed with 19% protein content produced the highest body weight and breast meat yield compared to ducks that are fed with a protein content of 15 and 17%.…”

Section: Effect Of Golden Snail Meal On Physical Composition Of Carcasssupporting

confidence: 94%

“…The negative impact occurs due to the increase in protein content which can reduce feed intake. [12] Stated that protein level and dietary energy impact final body weight, but a diet with high protein (CP = 22%) and high energy (3200 Kcal) produces the lowest final body weight in ducks. Based on this, it is necessary to carry out further research by increasing the usage rate by more than 30%.…”

Section: Effect Of Golden Snail Meal On Body Weight and Carcass Yieldmentioning

confidence: 99%

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Effect ofPomacea canaliculatasnail feed on carcass physical composition, meat chemical composition, and hematological profile of muscovy duck

et al. 2021

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This study was aimed to evaluate the use of Pomacea canaliculata meal at various levels on the carcass physical composition, meat chemical composition, and haematological profile of Muscovy duck. There were four treatments included P0 (control feed), P1 (control feed + 10% Pomacea canaliculata meal), P2 (control feed+20% Pomacea canaliculata meal), P3 (control feed + 30% Pomacea canaliculata meal). The variables observed included final body weight, carcass weight, carcass yield, non-carcass weight, meat chemicals composition and haematological profile. The experimental design used a completely randomized design with analysis of variance and further orthogonal polynomial trials. The research results revealed that using golden snail meal in Muscovy duck feed had a significant effect (P<0.05) on the final body weight, carcass weight, carcass yield, commercial cuts composition, physical composition of the carcass, non-carcass composition, and heterophil. Descriptively, the meat chemicals composition of Muscovy duck with Pomacea canaliculata meal was better than the control. The use of 30% golden snail meal in the male Muscovy duck diet provides the best performance on final body weight, slaughter weight, carcass yield, and drumstick weight parameters without negatively impacting haematology profile. The use golden snail meal provides the lowest carcass fat.

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Effects of different levels of sanguinarine on antioxidant indices, immunological responses, ileal microbial counts and jejunal morphology of laying hens fed diets with different levels of crude protein

Bavarsadi

Mahdavi

Ansari‐Mahyari

et al. 2016

Animal Physiology Nutrition

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This study was carried out to assess the effects of different levels of sanguinarine on antioxidant indices, immunological responses, serum biochemical parameters, ileal microbial counts and jejunal morphology of laying hens fed on diets with different levels of crude protein (CP). A total of 180 laying hens were subjected into nine dietary treatments with four cages of five birds each. Experimental treatments consisted of three levels of CP (85.0, 92.5 and 100% of Hy-Line W36 manual recommendation) and three levels of sanguinarine (0.00, 3.75 and 7.50 mg/kg) as a 3 × 3 factorial arrangement of laying hens which fed during a 70-day feeding trial. The in vitro study showed that sanguinarine exhibited sevenfold and threefold decreased antioxidant activities to inhibit 2-2-diphenyl-1-picric hydrazyl free radical as well as ferric ion reducing rather than butylated hydroxyl toluene. Although using the decremental levels of CP caused the increase in heterophil-to-lymphocyte ratio (p < 0.01), dietary administration of sanguinarine could suppress the serum cholesterol and malondialdehyde concentrations as well as heterophil-to-lymphocyte ratio (p < 0.05). Additionally, decreasing CP content resulted in the decreased percentage of albumin (p < 0.05); however, it had no negative effects on humoral immunity. Nonetheless, feeding of at least 3.75 mg/kg sanguinarine led to the remarkable increases in serum gamma globulin concentration (p < 0.01) and secondary (p < 0.05) antibody titres against sheep red blood cells. Moreover, a decline in dietary CP content led to higher villi height and crypt depth (p < 0.05; p < 0.001) and consequently decreased villi height-to-crypt depth ratio (p < 0.001) than the optimum level (100% CP). In spite of the effects of sanguinarine on the suppression of Escherichia coli and Salmonella counts (p < 0.05), it markedly enhanced villi height-to-crypt depth ratio as well as lamina propria lymphatic follicles extent, simultaneously (p < 0.001). Therefore, in spite of the detrimental effects of feeding low-CP diets on lymphocytes and serum albumin percentages, and villi height-to-crypt depth ratio, the administration of incremental levels of sanguinarine could improve cellular and humoral immunity, decrease ileal microbial counts and in turn improve the intestinal health indices in laying hens.

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Effect of Protein level and Dietary Energy on Production, Intestinal Morphology and Carcass Yield of Meat Duck during Starter Phase of 14 days

Cited by 5 publications

References 7 publications

Gut microflora and intestinal morphology changes of broiler chickens fed reducing dietary protein supplemented with lysine, methionine, and threonine in tropical environment

Gut microflora and intestinal morphology changes of broiler chickens fed reducing dietary protein supplemented with lysine, methionine, and threonine in tropical environment

Effect ofPomacea canaliculatasnail feed on carcass physical composition, meat chemical composition, and hematological profile of muscovy duck

Effects of different levels of sanguinarine on antioxidant indices, immunological responses, ileal microbial counts and jejunal morphology of laying hens fed diets with different levels of crude protein

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