Estimation of dietary arginine requirements for Longyan laying ducks

Xia, Weiguang; Fouad, A.M.; Chen, Wei; Ruan, D.; Wang, Shuang; Fan, Qiuli; Wu, Ying; Cui, Yiyan; Zheng, Chuntian

doi:10.3382/ps/pew205

Cited by 16 publications

(15 citation statements)

References 25 publications

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“…The breeders were then stunned, exsanguinated and the ovaries were collected and weighed. Samples were collected from the liver, oviduct magnum and ovaries ( 23 , 24 ) , which were rinsed rapidly with PBS, snap-frozen in liquid N 2 and stored at −80°C. After hatching, twelve ducklings from each treatment group (two ducklings from each replicate) were stunned, exsanguinated and samples of the liver and brain ( 25 ) were harvested, rinsed quickly with PBS, snap-frozen in liquid N 2 and stored at −80°C.…”

Section: Methodsmentioning

confidence: 99%

Effects of dietary methionine on productivity, reproductive performance, antioxidant capacity, ovalbumin and antioxidant-related gene expression in laying duck breeders

et al. 2017

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The study investigated whether dietary methionine (Met) affects egg weight and antioxidant status through regulating gene expression of ovalbumin (OVAL), nuclear factor erythroid 2 like 2 (Nrf2) and haem oxygenase 1 (HO-1) in laying duck breeders. Longyan duck breeders (n 540, 19 weeks) were randomly assigned to six treatments with six replicates of fifteen birds each. Breeders were fed diets with six Met levels (2·00, 2·75, 3·50, 4·25, 5·00 and 5·75 g/kg) for 24 weeks. The egg weight (g), egg mass (g/d), feed conversion ratio, hatchability, 1-d duckling weight, albumen weight, albumen proportion and OVAL mRNA level improved with dietary Met levels, whereas yolk proportion decreased (P<0·05). The weight of total large yellow follicles increased linearly (P<0·001) and quadratically (P<0·05) with dietary Met concentration, and their weight relative to ovarian weight showed a linear (P<0·05) effect. Dietary Met level had a linear (P<0·05) and quadratic (P<0·001) effect on the gene expression of glutathione peroxidase (GPX1), HO-1 and Nrf2, and quadratically (P<0·05) increased contents of GPX and total antioxidant capacity (T-AOC) in liver of duck breeders. In addition, maternal dietary Met enhanced gene expression of GPX1, HO-1 and Nrf2, increased contents of GPX and T-AOC and reduced carbonylated protein in the brains of hatchlings. Overall, dietary Met concentration affected egg weight and albumen weight in laying duck breeders, which was partly due to gene expression of OVAL in oviduct magnum. A diet containing 4·0 g Met/kg would achieve optimal hepatic GPX1 and Nrf2 expression, maximise the activity of GPX and minimise lipid peroxidation.

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Section: Methodsmentioning

confidence: 99%

Effects of dietary methionine on productivity, reproductive performance, antioxidant capacity, ovalbumin and antioxidant-related gene expression in laying duck breeders

et al. 2017

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“…Arg) in broiler feed increased the egg production and egg weight. Similarly, the study of Xia et al (2016) found that the supplementation of 1.26% (dig. Arg) L-Arginine in the feed of Longyan ducks increased the egg weight and egg yolk percentage.…”

Section: Introductionmentioning

confidence: 85%

Carcass Percentage of Laying Ducks (Anas platyrhyncos) Supplemented by L-Arginine in Ration and Treated by L-Arginine In-Ovo Injection

Syahruddin

Agustina

Pakiding

et al. 2019

Trop. Anim. Sci. J.

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This study aimed to measure the effect of L-Arginine supplementation in the ration of laying duck and in-ovo injection of L-Arginine during egg incubation on breast muscle dimensions and carcass percentage of local duck. A total of 500 fertile eggs were obtained from laying ducks fed ration without supplementation of L-Arginine containing 1.04% digestible Arginine and 500 other fertile eggs were obtained from laying ducks fed ration supplemented with 0.25% L-Arginine containing 1.29% digestible Arginine. The eggs were subjected to 4 treatments with 5 replications. The treatments were: 1) eggs collected from laying ducks fed ration supplemented with 0% L-Arginine and in ovo injected with 0% L-Arginine during egg incubation as a control (P0); 2) eggs collected from laying ducks fed ration supplemented with 0% L-Arginine and in ovo injected with 1.5% L-Arginine during egg incubation (P1); 3) eggs collected from laying ducks fed ration supplemented with 0.25% L-Arginine and in ovo injected with 0% L-Arginine during egg incubation (P2); and 4) eggs collected from laying ducks fed ration supplemented with 0.25% L-Arginine and in ovo injected with 1.5% L-Arginine during egg incubation (P3). In-ovo injection of L-Arginine was performed on day 8 th of incubation by injection of 1.5% L-Arginine into albumen using automatic syringe with a depth of 10 mm. The 180 day-olds hatched unsexed ducks were divided and moved into the pens according to the treatment groups. At the aged of 8 weeks, a male duck and a female duck from each experimental unit were measured for live weight and carcass weight, then the right Pectoralis major muscle sample was taken for histological analysis of myofibril. The results showed that supplementation of L-Arg in the ration of laying ducks and in-ovo injection of L-Arginine during egg incubation could increase muscle mass (number, diameter, and surface area) of the myofibril, live weight, and carcass percentage of offspring ducks compared to control offspring ducks. In conclusion, L-Arginine supplementation in the ration of laying ducks and in-ovo injections of L-Arginine into the eggs during incubation could increase breast muscle dimensions and carcass percentage of offspring local ducks.

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“…Therefore, it is very difficult to compare our findings with others. However, increasing the levels of Arginine (an essential amino acid) in laying ducks diets from 17 to 31 wk did not affect the levels of E2, LH, or FSH hormone, whereas the concentration of P4 decreased and the number of small follicle increased (Xia et al 2017). Also, Meng et al (2016) observed that increasing the concentrations of methionine (the first limiting amino acid in poultry diets) from 0.26% to 0.39% in Chinese laying hens diets during grower phase significantly declined the concentrations of LH and FSH in serum and the account of large and small follicles.…”

Section: Egg Qualitymentioning

confidence: 99%

“…Five millilitres of blood was collected from the wing vein using heparinized tubes. Blood was centrifuged at (1200 × g) at 4°C for 10 min to harvest plasma, then plasma was stored at −20°C until estradiol (E2), luteinizing hormone (LH), follicle-stimulating hormone (FSH), and progesterone (P4) (reproductive hormones) determined as mentioned by Xia et al (2017).…”

Section: Blood Sample Collectionmentioning

confidence: 99%

“…Also, the E2, LH, FSH concentrations in the plasma of laying ducks were not significantly affected by Lys levels, whereas the concentration of P4 was decreased significantly as Lys levels increased ( Table 5). The oviduct length, weight, ovary weight, and number of large and small follicle are used to judge ovarian development and its physiological functions (Sun et al 2015;Meng et al 2016;Xia et al 2017). The reproductive hormones including E2, LH, FSH, and P4 are associated with development of reproductive organs (Zhang et al 1997).…”

Section: Egg Qualitymentioning

confidence: 99%

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Effects of dietary lysine supplementation on performance, egg quality, and development of reproductive system in egg-laying ducks

Fouad

Chen

Ruan

et al. 2017

Journal of Applied Animal Research

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This study was conducted to examine five lysine (Lys) levels (0.75, 0.80, 0.85, 0.90, and 0.95%) to estimate the optimal level of Lys for Longyan laying ducks from 22 to 38 wk of age. Nine hundred Longyan ducks aged 22 wk were assigned randomly to the 5 dietary treatments, where each treatment comprised 6 replicate pens with 30 ducks per pen. Lys had no effects on egg production, egg mass, feed conversion ratio, shape index, Haugh unit, yolk colour, yolk weight, or albumen weight, but the egg weight was improved significantly (P < 0.05) by dietary Lys supplementation, whereas the eggshell thickness, eggshell weight, and eggshell proportion decreased significantly as the Lys levels increased. Dietary supplementation of Lys did not affect the reproductive organ indices or the plasma levels of estradiol, luteinizing hormone, or follicle-stimulating hormone, whereas the plasma level of progesterone declined significantly (P < 0.01) as elevation the concentrations of Lys in the diets. In conclusion, the results indicate that the optimal Lys level in Longyan laying ducks diets is 0.80% to produce eggs with normal egg weight without adverse effects on the eggshell weight, eggshell proportion, or eggshell thickness.

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Estimation of dietary arginine requirements for Longyan laying ducks

Cited by 16 publications

References 25 publications

Effects of dietary methionine on productivity, reproductive performance, antioxidant capacity, ovalbumin and antioxidant-related gene expression in laying duck breeders

Effects of dietary methionine on productivity, reproductive performance, antioxidant capacity, ovalbumin and antioxidant-related gene expression in laying duck breeders

Carcass Percentage of Laying Ducks (Anas platyrhyncos) Supplemented by L-Arginine in Ration and Treated by L-Arginine In-Ovo Injection

Effects of dietary lysine supplementation on performance, egg quality, and development of reproductive system in egg-laying ducks

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