scholarly journals Breed effect between Mos rooster (Galician indigenous breed) and Sasso T-44 line and finishing feed effect of commercial fodder or corn

2012 ◽  
Vol 91 (2) ◽  
pp. 487-498 ◽  
Author(s):  
D. Franco ◽  
D. Rois ◽  
J.A. Vázquez ◽  
L. Purriños ◽  
R. González ◽  
...  
Keyword(s):  
Indigenous Breed ◽  
Feed Effect ◽  
Finishing Feed

scholarly journals Calixresorcin[4]arene-Mediated Transport of Pb(II) Ions Through Polymer Inclusion Membrane

Membranes ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 285
Author(s):  
Joanna Konczyk ◽  
Wojciech Ciesielski
Keyword(s):  
Activation Energy ◽  
Transport Process ◽  
Optimal Conditions ◽  
Inclusion Membrane ◽  
Polymer Inclusion Membrane ◽  
Membrane Effect ◽  
Feed Phase ◽  
Ion Carrier ◽  
Feed Effect ◽  
Nitrate Solutions

A facilitated transport of Pb(II) through polymer inclusion membrane (PIM) containing 1,8,15,22-tetra(1-heptyl)-calixresorcin[4]arene and its tetra- and octasubstituted derivatives containing phosphoryl, thiophosphoryl or ester groups as an ion carrier was investigated. The efficiency of Pb(II) removal from aqueous nitrate solutions was considered as a function of the composition of membrane (effect of polymer, plasticizer, and carrier), feed (effect of initial metal concentration and presence of other metal ions) and stripping phases, and temperature of the process conducting. Two kinetic models were applied for the transport description. The highest Pb(II) ions removal efficiency was obtained for the membrane with tetrathiophosphorylated heptyl-calixresorcin[4]arene as an ion carrier. The activation energy value, found from Eyring plot to be equal 38.7 ± 1.3 kJ/mol, suggests that the transport process is controllable both by diffusion and chemical reaction. The competitive transport of Pb(II) over Zn(II), Cd(II), and Cr(III) ions across PIMs under the optimal conditions was also performed. It was found that the Cr(III) ions’ presence in the feed phase disturb effective re-extraction of Pb(II) ions from membrane to stripping phase. Better stability of PIM-type than SLM-type membrane was found.

Ethanolic extract of mango seed in broiler feed: Effect on productive performance, segments of the digestive tract and blood parameters

2021 ◽  
pp. 114999
Author(s):  
Nadja Naiara Pereira Farias ◽  
Ednardo Rodrigues Freitas ◽  
Rafael Carlos Nepomuceno ◽  
Herbenson Marques Gomes ◽  
Davyd Herik Souza ◽  
...  
Keyword(s):  
Digestive Tract ◽  
Ethanolic Extract ◽  
Blood Parameters ◽  
Productive Performance ◽  
Mango Seed ◽  
Feed Effect ◽  
Broiler Feed

A New Distance Relaying Method with System Load Condition Considered in a Transmission Line

2005 ◽  
Vol 277-279 ◽  
pp. 686-691
Author(s):  
Hyun Kyung Moon ◽  
Seung Ho Hyun ◽  
Sung J. Lee
Keyword(s):  
Transmission Line ◽  
Fault Location ◽  
Load Condition ◽  
Fault Current ◽  
Loop Analysis ◽  
Fault Resistance ◽  
Before And After ◽  
Location Algorithm ◽  
Distance Relaying ◽  
Feed Effect

This paper presents a novel fault location algorithm for a distance relay of a transmission line. Under the assumption that the source voltages and impedances of both ends are not changed before and after a fault, the fault current and the voltage of the terminal end are estimated including the loading condition. Then, the fault location expression, independent of the fault resistance, is derived using these voltages and currents through a loop analysis, in the manner that the in-feed effect of the terminal end is eliminated. The suggested algorithm is applied to a typical transmission line to show its effectiveness.

scholarly journals Retail Packaging Affects Colour, Water Holding Capacity, Texture and Oxidation of Sheep Meat more than Breed and Finishing Feed

Foods ◽  
2022 ◽  
Vol 11 (2) ◽  
pp. 144
Author(s):  
Minh Ha ◽  
Robyn Dorothy Warner ◽  
Caitlin King ◽  
Sida Wu ◽  
Eric N. Ponnampalam
Keyword(s):  
Profile Analysis ◽  
Vastus Lateralis ◽  
Modified Atmosphere Packaging ◽  
Water Holding Capacity ◽  
Standard Diet ◽  
Texture Profile ◽  
Sheep Meat ◽  
Camelina Meal ◽  
Finishing Feed ◽  
Water Holding

This study investigated the CIELab colour, water holding capacity, texture and oxidative stability of sheep meat from different breeds, finishing feeds, and retail packaging methods. Leg primal cuts from a subset of Composite wether lambs (n = 21) and Merino wether yearlings (n = 21) finished on a standard diet containing grain and cereal hay, a standard diet with camelina forage, or a standard diet with camelina meal, were used in this study. Semimembranosus and Vastus lateralis were packaged in vacuum skin packaging (VSP), or modified atmosphere packaging with 80% O2 and 20% CO2 (HioxMAP), or with 50% O2, 30% N2, and 20% CO2 (TrigasMAP). Packaging had a greater effect (p < 0.001) on L*, a*, b*, hue, and chroma than the effects from breed and finishing feed. Purge loss was affected by packaging. Cooking loss was affected by breed for Semimembranosus and packaging for both muscle types. HioxMAP and TrigasMAP increased WBSF and Texture Profile Analysis hardness of the meat compared to VSP. Lipid oxidation, assessed by TBARS, were lower in camelina forage or camelina meal supplemented diets and TrigasMAP compared to standard diet and HioxMAP, respectively. Total carbonyl and free thiol content were lower in VSP. Thus, supplementing feed with camelina forage or meal and lowering oxygen content in retail packaging by TrigasMAP or VSP are recommended to ensure optimal sheep meat quality.

scholarly journals Comparison of semen characteristics between indigenous and Amo breeds cockerel of Gombe State, Nigeria

2019 ◽  
Vol 15 (2-1) ◽  
pp. 303-306
Author(s):  
Tijjani Haruna Usman ◽  
Saleh Mohammed Sir ◽  
Ma’aruf Bashir Sani
Keyword(s):  
Semen Quality ◽  
Sperm Concentration ◽  
Progressive Motility ◽  
Indigenous Breed ◽  
Normal Sperm ◽  
Abnormal Sperm ◽  
Significant Difference ◽  
Semen Characteristics ◽  
Genetically Improved ◽  
Abdominal Massage

The experiment was carried out to compare the semen characteristics of indigenous and Amo strains of cockerel at poultry unit of teaching and research farm of Federal University of Kashere, Gombe State, Nigeria. Semen samples were collected from nine indigenous and nine Amo breeds of cockerel at three days interval for two weeks using abdominal massage technique. Semen samples were examined macroscopically for semen colour, pH and ejaculation volume. Then, microscopic observation was carried for sperm concentration, mass motility, progressive motility, live and dead sperms percentage, normal and abnormal sperm, all for semen characteristics. The results showed a significant difference (P ≤ 0.05) between mass motility, progressive motility, sperm concentration and head defects of 4.85 ± 0.27 to 4.37 ± 0.19, 95.13 ± 0.43 to 81.63 ± 1.15%, 4.93 ± 1.84 to 3.40 ± 1.07×109/ml and 2.96 ± 0.17 to 3.44 ± 0.12% for indigenous and Amo breeds of cockerel, respectively. There were no significant differences observed as semen colour, ejaculate volume, semen pH, live / dead normal sperm neck (mid-piece), tail defects and sperm total abnormalities were found to be 2.85 ± 0.07 to 2.00 ± 0.090.21 ± 0.17 to 0.20 ± 0.02 /ml, 88.85 ± 0.58 to 72.70 ± 0.54% /ml, 11.14 ± 0.58 to 27.29 ± 0.54%, 81.00 ± 0.78 to 66.22 ± 0.61%,9.03 ± 0.42 to 13.96 ± 0.47%, 9.70 ±  to 13.00 ± 0.30 and 21.70 ± 0.59 to 30.40 ± 0.53% for the indigenous and Amo breed groups of cockerel, respectively. It was concluded that semen quality characteristics could be differed between genetically improved (Amo strain) and indigenous breed of cockerels.

PSVIII-2 Genetic diversity analysis of hybrid Karachaev goats (Capra hircus) population using microsatellite marker data

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 242-243
Author(s):  
Oleg Fomenko ◽  
Sergey N Petrov
Keyword(s):  
Genetic Diversity ◽  
The Body ◽  
Capra Hircus ◽  
Breeding Programs ◽  
Str Markers ◽  
Marker Data ◽  
Indigenous Breed ◽  
Fertile Hybrids ◽  
Genetic Analyzer ◽  
Hybrid Forms

Abstract The Karachaev goat is an indigenous breed that possesses unique features including significantly less fat deposition in the body compared to sheep and cattle, ability to graze at an altitude of up to 1200 meters and to produce fertile hybrids with wild relatives. To understand the genetic diversity and population structure of hybrids between domestic Karachaev goats (Capra hircus) and The West Caucasian tur (Capra caucasica) 143 individuals were analyzed using 10 microsatellites panel. Sample were analyzed according to the manufacturer’s recommendations on an automatic sequencer, ABI 3130XL genetic analyzer (Applied Biosystems). Genetic diversity was calculated using GenAlEx 6.503 software. Genotyping of ten microsatellite loci in hybrid forms of Karachaev goats and turs detected 106 alleles in total. Na values ranged from five (INR063) to seventeen (SRCRSO008), averaging 10.6 alleles per locus across the 10 loci. All loci were polymorphic. The average number of alleles was 10.6 alleles per locus. This is higher than the similar indicator obtained by Kharzinova et al. (2019) in populations of Soviet wool, Tajik wool, Orenburg downy, Alpine and Zaanen dairy breeds of goats, studied using the panel of same 10 STR-markers (9.3 loci). Other key indexes of genetic diversity could be found in table 1. The values of the coefficient FIS suggest the absence of related mating in the herd. Information on genotypic variability of Karachaev goats hybrid forms obtained here will contribute into the breeding programs improvement and to preservation of existing native breeds.

HIF-1 regulates energy metabolism of Tibetan chicken brain during embryo development under hypoxia

2021 ◽  
Author(s):  
Qiguo Tang ◽  
Qinqin Xu ◽  
Cui Ding ◽  
Hao Zhang ◽  
Yao Ling ◽  
...  
Keyword(s):  
Energy Metabolism ◽  
Embryo Development ◽  
Target Genes ◽  
Tca Cycle ◽  
Tibet Plateau ◽  
Chicken Breed ◽  
Indigenous Breed ◽  
Hypoxic Environment ◽  
Tibetan Chicken ◽  
Qinghai Tibet Plateau

The Tibetan chickens (Gallus gallus; TBC) are an indigenous breed distributed in Qinghai-Tibet Plateau that are well adapted to a hypoxic environment. The energy metabolism of embryo brains in TBCs under hypoxia has been little reported. This study investigated changes in energy metabolism of TBCs brain during embryo development under hypoxia. We found TBCs exhibited a change of glycolysis and TCA cycle during embryo development under hypoxia. HIF-1 potentially involved this by directly inducing the overexpression of PDK1 and glycolytic genes, hexokinase(HK1) and lactate dehydrogenase A (LDHA) to increase glycolysis of TBCs to adapt hypoxia. Although these may not be unique to TBCs, as we had also found similar results in Dwarf Laying Chickens (DLCs), a lowland chicken breed, TBCs had stronger regulating ability. In summary, our study revealed HIF-1 induced energy metabolism change in TBCs brain via upregulating expressions of PDK1 and other HIF-1 target genes like HK1, LDHA to increase glycolysis for TBCs hypoxia adaptation during embryo development. It indicates the potential application of TBCs energy metabolism research for other animals living on the Qinghai-Tibet Plateau.

Sulfamethazine and Sulfathiazole Determination at Residue Levels in Swine Feeds by Reverse-Phase Liquid Chromatography with Post-Column Derivatization

1988 ◽  
Vol 71 (4) ◽  
pp. 710-717 ◽  
Author(s):  
Robert L Smallidge ◽  
Elzbieta J Kentzer ◽  
Kelly R Stringham ◽  
Eun H Kim ◽  
Connie Lehe ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Internal Standard ◽  
Analysis Time ◽  
Reverse Phase ◽  
Sample Extract ◽  
Mobile Phases ◽  
Coefficients Of Variation ◽  
Field Samples ◽  
Phase Liquid ◽  
Finishing Feed

Abstract Twenty g sample, to which sulfamerazine has been added as internal standard, is extracted with 0.3N HC1 + 1.5% diethylamine in 25% methanol. The sample extract is chilled (to aid clarification), centrifuged, and filtered. The sulfonamides are separated from each other and from co-extracted materials on a C-18 reverse-phase column and detected at 450 nm following post-column derivatization with dimethylaminobenzaldehyde. Two isocratic mobile phases have been tested: (1) acetonitrile-2% acetic acid (17 + 83), with an analysis time of 13 min; and (2) acetonitrile-methanol-2% acetic acid (4 + 16 + 80), with an analysis time of 20 min but an improved analysis for some samples. As many as 40 samples have been analyzed at one time unattended with the aid of an autosampler. A total of about 1500 field samples have been assayed using the method. Method sensitivity is 0.1 ppm for either analyte in a hog finishing feed. Linearity for each of the analytes is satisfactory over a range of 0.4-25 ppm in spiked feeds. Coefficients of variation range from 13% at 0.5 ppm to 2% at 13 ppm as tested over a period of time in naturally contaminated samples. The absolute recovery of sulfamethazine varies with sample matrix, but, in the presence of sulfamerazine as internal standard, recovery has been 96.7-99.7% over the range of 0.1-10 ppm. Sulfamerazine and sulfamoxole were tested for their suitability as internal standards. Sulfamerazine is a good internal standard for sulfamethazine; neither is ideal for sulfathiazole. A recovery factor is necessary for estimating the level of sulfathiazole in feeds when either internal standard is used; however, either standard is satisfactory for correcting for feed matrix variation

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