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JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) . Vol. LXXXXI, N° 6Mention de date : 06/1996Paru le : 01/06/1996 |
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Ajouter le résultat dans votre panierResults of the hide evaluations from the National Cattlemen's Association "Strategic Alliance Project" of 1993 / Robert G. Koeppen in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXXI, N° 6 (06/1996)
[article]
Titre : Results of the hide evaluations from the National Cattlemen's Association "Strategic Alliance Project" of 1993 Type de document : texte imprimé Auteurs : Robert G. Koeppen, Auteur Année de publication : 1996 Article en page(s) : p. 153-160 Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The National Cattlemen's Association sponsored the "Strategic Alliance Project" as a direct result of the 1991 National Beef Quality Audit. This was a group effort of the cow-calf producers, a feedlot operator, a packer, a meat purveyor and a retailer to :
1) Produce a group of cattle by State Of The Art methods.
2) Evaluate the quality and costs of these animals.
3) Compare these cattle to a baseline of average lots being produced in the same time period.
This project was managed by the National Cattlemen's Association with the cooperation of the Colorado State University and Texas A&M University (1993).
Fifteen different pens of cattle were assembled at different cow-calf operations, with about 80 to 90 head per pen. The selection was based on similarity of breed, size, confirmation and general health. All pertinent information was tracked from calf through the final evaluations. The fifteen pens were fed at a feedlot in Oberlin, Kansas ant the calves were supplied from locations in Nebraska, South Dakota, Montana and Wyoming.
The target for completion of feeedint was the first to occur with a 0.4 inch backfat (measured ultrasonically) or 1050 to 1150 pounds of live animal weight. All animals were "harvested" in 1993 and evaluated. All of the information was compared on a lot by lot basis. The "baseline" was the production averages on all hides that were processed in the same time period.
The Strategic Alliances Project produced cattle hides that were quite uniform within each individual group, but are quite different from group to group. These differences appear to be primarily due to different genetic origins.En ligne : https://drive.google.com/file/d/1R9oliDqpwhigFFdjxYzkpufAcBKth3B3/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=7793
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXXI, N° 6 (06/1996) . - p. 153-160[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 006945 - Périodique Bibliothèque principale Documentaires Disponible Use of computer-generated models in studies of modified collagen / Eleanor M. Brown in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXXI, N° 6 (06/1996)
[article]
Titre : Use of computer-generated models in studies of modified collagen Type de document : texte imprimé Auteurs : Eleanor M. Brown, Auteur ; Gregory King, Auteur Année de publication : 1996 Article en page(s) : p. 161-170 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Collagène
Cuirs et peaux
Molécules -- Modèles
Simulation par ordinateurIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Production of leather from cattlehide is accomplished by the introduction of crosslinks between collagen triplehelices, microfibrils and fibrils. Present tanning technology uses chromium complexes to form crosslinks between acidic aminoacid side chains. Pretanning treatments that modify the primary amino groups of collagen have been reported to increase the efficiency of chrome tanning. To aide the effectiveness and efficiency of research leading to improved tanning technology, we have examined a fragment of our previously reported three dimensional model of the collagen microfibril.This 281 residue fragment of the microfibril model contains 15 lysine residues and 28 acidic residues distributed over the microfibril's 15 peptide chains. The effects of reductive alkylation and deamination of the lysine residues were simulated. Five independent binding sites in which carboxyl groups were located 7 to 11 Angström were indentified and a sphere of 8 Angström radius about the midpoint of each pair was isolated. The sites examined provide for the possibility of inter and intra microfibrillar stabilization. En ligne : https://drive.google.com/file/d/1tAZW6ISSgdVgJkto4EN_sILi8ZHq3sG0/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=7794
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXXI, N° 6 (06/1996) . - p. 161-170[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 006945 - Périodique Bibliothèque principale Documentaires Disponible
Exemplaires (1)
Code-barres | Cote | Support | Localisation | Section | Disponibilité |
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006945 | - | Périodique | Bibliothèque principale | Documentaires | Disponible |