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Estimation of L-threonine requirements for Longyan laying ducks
Laying Duck Requirement Threonine
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2017/3/8
A study was conducted to test six threonine (Thr) levels (0.39%, 0.44%, 0.49%, 0.54%, 0.59%, and 0.64%) to estimate the optimal dietary Thr requirements for Longyan laying ducks from 17 to 45 wk of ag...
Effects of Dietary Methionine Levels on Choline Requirements of Starter White Pekin Ducks
Duck Choline Methionine Growth Performance
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2016/12/28
A 2×5 factorial experiment, using 2 dietary methionine levels (0.28% and 0.48%) and 5 dietary choline levels (0, 394, 823, 1,239, and 1,743 mg/kg), was conducted to study the effects of dietary methio...
Six single nucleotide polymorphisms in adipocyte fatty acid-binding protein (A-FABP) gene in Beijing ducks
Beijing ducks A-FABP gene SNPs PCR-SSCP
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2015/6/8
PCR-SSCP was applied to analyze the polymorphisms of A-FABP gene in 4 lines of Beijing ducks (n = 400). The results showed that six SNPs were found in intron 3. There were no polymorphisms found in ex...
Feed input and excreta collection time in metabolisable energy assays for ducks
metabolisable energy bioassay method force-feeding
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2015/6/4
Three experiments were conducted to determine the optimal feed input and excreta collection time by a bioassay of dietary true metabolisable energy (TME) for ducks. In experiment 1 and experiment 2, t...
Effects of Dietary Fermented Chlorella vulgaris (CBT®) on Growth Performance, Relative Organ Weights, Cecal Microflora, Tibia Bone Characteristics, and Meat Qualities in Pekin Ducks
Fermented Chlorella vulgaris Meat Quality Performance Pekin Duck
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2016/5/17
Fermented Chlorella vulgaris was examined for its effects on growth performance, cecal microflora, tibia bone strength, and meat qualities in commercial Pekin ducks. A total of three hundred, day-old ...
Antioxidant Enzyme Activity and Meat Quality of Meat Type Ducks Fed with Dried Oregano (Origanum vulgare L.) Powder
Antioxidant Enzyme Activity Duck Meat Quality Oregano Phenolic Compound
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2016/5/17
One-day-old Cherry valley meat-strain ducks were used to investigate the effect of supplemental dried oregano powder (DOP) in feed on the productivity, antioxidant enzyme activity, and breast meat qua...
Carcass Characteristics and Meat Quality of Korean Native Ducks and Commercial Meat-type Ducks Raised under Same Feeding and Rearing Conditions
Identical Feeding Condition Commercial Meat-type Duck Korean Native Duck
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2016/5/17
This study was conducted to compare carcass characteristics and physico-chemical meat quality in two different genotype ducks raised under identical feeding and rearing conditions. A total of ninety 1...
Effect of Sea Tangle (Laminaria japonica) and Charcoal Supplementation as Alternatives to Antibiotics on Growth Performance and Meat Quality of Ducks
Sea Tangle Charcoal Duck Growth Performance Meat Composition Fatty Acid Profile
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2016/5/16
A total of 150 growing ducks were assigned to five dietary treatments to study the effect of sea tangle and charcoal (STC) supplementation on growth performance and meat characteristics in a completel...
Effects of Enzyme Complex Supplementation to a Paddy-based Diet on Performance and Nutrient Digestibility of Meat-type Ducks
Xylanase beta-Glucanase Cellulase Paddy Ducks
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2016/5/11
Paddy rice is rarely used as a feed because of its high fiber content. In this study, two experiments were conducted to study the effects of supplementing an enzyme complex consisting of xylanase, bet...
Changes of Hypothalamic GnRH-I, POMC and NPY mRNA Expression and Serum IGF-I and Leptin Concentrations during Maturation of Shaoxing Ducks (Anas platyrhynchos)
Changes of Hypothalamic GnRH-I, POMC and NPY mRNA Expression and Serum IGF-I and Leptin Concentrations during Maturation of Shaoxing Ducks (Anas platyrhynchos)
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2016/5/6
Sexual maturity in poultry is controlled by a complex neural circuit located in the basal forebrain, which integrates the central and peripheral signals to activate hypothalamic gonadotrophin-releasin...
Carcass Characteristics of Pekin Ducks Selected for Greater Breast Muscle Thickness Using Ultrasound Scanning in Response to Dietary Protein
Breast muscle thickness ultrasound scanning carcass characteristics dietary protein
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2010/11/15
Male and female Pekin ducks selected for greater breast muscle thickness (MT) were used in
an experiment to determine the effect of dietary protein on carcass components yield, and carcass compositio...
Effect of Dietary Protein on Growth, Breast Muscle Thickness and Blood Parameters of Pekin Ducks Selected for leanness Using Ultrasound Scanning
breast muscle thickness ultrasound scanning pekin ducks growth performance
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2010/11/15
Male and female Pekin ducks selected for greater breast muscle thickness were used to
determine the effect of dietary protein on growth performance and breast muscle thickness (MT). The dietary progr...
Changes in Structure of Head Feathers of Wild Plumage Type:Male Mallard Ducks (Anas platyrhynchos var.domesticus) Following Seasonal Plumage Changes
mallard duck seasonal dimorphism plumage pigment feather structure
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2009/7/31
Seasonal changes occur in the plumage of male mallard ducks, and this phenomenon is referred to as seasonal dimorphism of the plumage. However, no information is available, especially morphological, a...
Amino Acid Digestibility of Corn,Pearl Millet,and Sorghum for White Pekin Ducks,Anas Platyrinchos Domesticus
AMEn amino acid digestibility ducks metabolizable energy TMEn
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2009/7/30
The objective of the present experiment was to determine the digestibility of amino acids and nitrogen-corrected apparent (AMEn) and true (TMEn) metabolizable energy contents of corn, pearl millet, an...
Use of Duckweed (Lemna perpusilla) as a Protein Source Feed Item in the Diet of Semi-Scavenging Jinding Layer Ducks
duckweed egg production jinding duck mustard oil cake weight gain
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2009/7/30
An experiment was conducted for a period of 75 days at farmers house to investigate the effect of feeding duckweed (Lemna perpusilla) that replaced conventional protein supplement mustard oil cake (MO...