The Effects of Threonine on Performance Parameters, Carcass Traits, Visceral Organ Indices and Serum Biochemical Parameters of Linwu Ducks, Aged 4 to 8 Weeks

Jiang, Gaofei; Li, C; Huang, Xin; Zhang, X; Hu, Yujin; Wang, X; Wu, Dawei; Dai, Qiuzhong

doi:10.1590/1806-9061-2017-0614

Cited by 5 publications

(2 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This was in agreement with Liu et al [24], who reported Yangzhou geese in NRS exhibited higher subcutaneous fat thickness and higher AFY than in FRS. The visceral organ development is closely associated with duck growth, development, and health [30]. Results showed GW and GI were generally lower in NRS at different ages, indicated that FRS ducks had better gizzard development than NRS ducks.…”

Section: Discussionmentioning

confidence: 95%

Changes in production performance, antioxidant capacity and immune status of meat ducks under different rearing systems

Guo¹,

Wang²,

Z³

et al. 2020

Preprint

View full text Add to dashboard Cite

Background As potential substitutes of traditional free-range rearing, floor rearing system (FRS) and net rearing system (NRS) are currently predominant dryland rearing systems. In this study, a total of 720 Nonghua ducks were assigned to a 2 × 3 factorial arrangement with two rearing systems (FRS and NRS) and three ages (4w, 8w, and 13w) to study the effects of FRS and NRS on production performance, antioxidant capacity and immune status. Results The production performance was mainly affected at 8w. Body weight, average daily gain, eviscerated weight and semi-eviscerated weight were higher in NRS at 8w, but carcass yield was decreased at 8w and 13w (P < 0.05). Lipid deposition was enhanced in NRS with higher sebum and abdominal fat yield at 8w and 13w (P < 0.05). NRS resulted in the liver developmental retardation at 4w and decreased gizzard index at all ages (P < 0.05). Antioxidant capacity was not affected by rearing systems (P > 0.05), but a tendency of better antioxidant capacity in NRS at 4w was found, while glutathione peroxidase (GSH-Px) activity was higher in NRS at 13w (P < 0.05). Spleen and thymus were promoted in NRS and immune cytokines were extensively affected by rearing system (P < 0.05), exhibiting general higher profiles of IFN-γ, IL-1β, IL-4, immunoglobulins in NRS. Serum biochemical parameters (AST, ALT, and ALP) indicated NRS was better for liver health, and in liver, ALP was higher in FRS at 13w, while ALP and IFN-γ in 13w-FRS were both higher than 4w-FRS and 8w-FRS (P < 0.05). Conclusions Compared with FRS, NRS was conducive to production performance and duck liver health to some extent but it had defects in visceral organ development and lipid deposition. Though antioxidant capacity was not significantly affected, NRS ducks might have better antioxidant capacity at the early stage of breeding, while GSH-Px activity was increased for scavenging excess free radicals at the later one. NRS increased the levels of IFN-γ, IL-1β, IL-4, immunoglobulins in serum and promoted the development of thymus and spleen to improve duck immune function. These results revealed the physiological impacts of FRS and NRS on ducks and provided a reliable reference for rearing system selection.

show abstract

Section: Discussionmentioning

confidence: 95%

Changes in production performance, antioxidant capacity and immune status of meat ducks under different rearing systems

Guo¹,

Wang²,

Z³

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…The FCR value, according to Panase and Mengumphan [21] A total of three chickens aged 21 days from each replication were euthanized and the viscera of the heart, liver, spleen, pectoralis muscle tissue, gastrocnemius, and small intestine were taken. Measuring the index of viscera organs can be an indicator to know the balance of growth performance [22]. The left muscle tissue was collected to measure the muscle area, while the right muscle tissue was made for histological preparations.…”

Section: Measuring Feed Conversion Ratio (Fcr)mentioning

confidence: 99%

Goloba kusi (Hornstedtia scottiana [F. Muell.] K. Schum.) fruit as a feed additive to improve the histological structures and growth performance of broiler

2023

View full text Add to dashboard Cite

Background and Aim: The broiler farming industry in Indonesia has enormous potential, with chicken meat that can be optimized by providing adequate and high-quality feed. However, the main raw material for the feed still relies on imported products, which makes it necessary to produce alternative materials from native plants. Therefore, this study aimed to investigate the effect of giving Goloba kusi fruit (GF) (Hornstedtia scottiana [F. Muell.] K. Schum.) on the growth of the small intestine, pectoralis major, and gastrocnemius muscle, as well as the development of broiler chickens. Materials and Methods: This study used a completely randomized design, in which 300 day-old Chicks were divided into five groups, consisting of 12 chickens in each group with five replications. The GF treatments, namely, 0% (control [CON]), 0.625% (GF1), 1.25% (GF2), 2.5% (GF3), and 5% (GF4) were administered through per kg basal feed. Subsequently, three chickens from each replication were taken, decapitated on the neck, subjected to surgery for histological preparations, and stained with Hematoxylin-Eosin and Periodic acid-Schiff-alcian blue. The variables observed included small intestine morphology, muscle morphology, and chicken growth performance. Results: The results showed that the small intestine morphology, muscle morphology, and chicken growth performance of the GF4 (5%) group increased significantly compared to the CON group. Conclusion: The administration of GF with an optimum concentration of 5% through basal feed improves small intestine morphology, muscle morphology, and chicken growth performance.

show abstract

Effects of rearing systems on production performance, antioxidant capacity and immune status of meat ducks at different ages

Guo

Wang

Liu

et al. 2021

Animal

View full text Add to dashboard Cite

The Effects of Threonine on Performance Parameters, Carcass Traits, Visceral Organ Indices and Serum Biochemical Parameters of Linwu Ducks, Aged 4 to 8 Weeks

Cited by 5 publications

References 25 publications

Changes in production performance, antioxidant capacity and immune status of meat ducks under different rearing systems

Changes in production performance, antioxidant capacity and immune status of meat ducks under different rearing systems

Goloba kusi (Hornstedtia scottiana [F. Muell.] K. Schum.) fruit as a feed additive to improve the histological structures and growth performance of broiler

Effects of rearing systems on production performance, antioxidant capacity and immune status of meat ducks at different ages

Contact Info

Product

Resources

About