Effects of alfalfa leaf mass as a part of organic feeding strategies on growth and slaughtering performance of dual-purpose roosters: a preliminary study

2021 ◽  
Author(s):  
L. Blume* ◽  
S. Hoischen-Taubner ◽  
A. Sundrum
Keyword(s):  
Feeding Strategies ◽  
Dual Purpose ◽  
Leaf Mass ◽  
Alfalfa Leaf ◽  
Preliminary Study

scholarly journals Effect of feeding strategies on weaning weight and milk production of Holstein × Zebu calves in dual purpose milk production systems

2015 ◽  
Vol 47 (6) ◽  
pp. 1095-1100 ◽  
Author(s):  
Gustavo Chamon de Castro de Menezes ◽  
Sebastião de campos Valadares Filho ◽  
Nicolas Lopez-Villalobos ◽  
José Reinaldo Mendes Ruas ◽  
Edenio Detmann ◽  
...  
Keyword(s):  
Milk Production ◽  
Production Systems ◽  
Feeding Strategies ◽  
Dual Purpose ◽  
Weaning Weight ◽  
Effect Of Feeding

Dual purpose laser ablation-inductively coupled plasma mass spectrometry for pulsed laser deposition and diagnostics of thin film fabrication: Preliminary study

Talanta ◽  
2009 ◽  
Vol 79 (3) ◽  
pp. 583-589 ◽  
Author(s):  
Mersida Janeva Azdejković ◽  
Johannes Teun van Elteren ◽  
Kristina Žužek Rožman ◽  
Radojko Jaćimović ◽  
Evangelia Sarantopoulou ◽  
...  
Keyword(s):  
Thin Film ◽  
Inductively Coupled Plasma ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Dual Purpose ◽  
Inductively Coupled ◽  
Thin Film Fabrication ◽  
Plasma Mass Spectrometry ◽  
Preliminary Study ◽  
Film Fabrication

scholarly journals Dual-purpose production of eggs and meat—part 2: hens of crosses between layer and meat breeds show moderate laying performance but choose feed with less protein than a layer hybrid, indicating the potential to reduce protein in diets

2020 ◽  
Author(s):  
L. Baldinger ◽  
R. Bussemas
Keyword(s):  
High Performance ◽  
Egg Production ◽  
Feed Consumption ◽  
Feeding Strategies ◽  
Dual Purpose ◽  
Laying Performance ◽  
Protein Components ◽  
Performance Results ◽  
Protein Rich ◽  
Protein Feed

Abstract The use of modern chicken genotypes with high egg or meat performance results in the ethically unacceptable practice of culling day-old male layer chicks because of their inefficient fattening performance. Dual-purpose genotypes with a balanced performance profile for eggs and meat are one option to avoid this practice. In this study, the performance of four crosses of a layer breed (White Rock or New Hampshire) and the meat breed Bresse Gauloise, purebred Bresse Gauloise and the layer hybrid Lohmann Sandy was compared under organic husbandry conditions. Part 2 focuses on the laying performance of the hens until the age of 72 weeks and their feed choices when offered energy-rich and protein-rich feed mixtures. Feed consumption was generally high (133–143 g day−1), but the crosses consumed less protein feed than Lohmann Sandy, indicating a potential to reduce the proportion of high-protein components. Bresse Gauloise × White Rock showed severe plumage loss due to feather pecking, which was most likely caused by their low consumption of protein feed. Apparently, free-choice feeding did not agree with this genotype. Average laying performance of the crosses was 68–73% total eggs per average hen, which can be considered moderate. Average egg weights and egg size distribution were comparable with Lohmann Sandy, while slaughter performance of the senior hens was comparable with purebred Bresse Gauloise. Based on these findings, egg production with dual-purpose laying hens can be an ethically desirable alternative to high-performance genotypes, but will require further research on optimal feeding strategies and animal behaviour. Trial registered on July 7, 2017 (reference number V 241-26532/2017)

scholarly journals Low Cost Feeding Strategies for Dual Purpose Cattle in Venezuela

1990 ◽  
Vol 73 (3) ◽  
pp. 792-803 ◽  
Author(s):  
P.W. Townsend ◽  
R.W. Blake ◽  
F.J. Holmann ◽  
P.J. Van Soest ◽  
C.J. Sniffen ◽  
...  
Keyword(s):  
Low Cost ◽  
Feeding Strategies ◽  
Dual Purpose ◽  
Dual Purpose Cattle

The Ultrastructure of Metastatic Human Mammary Carcinoma After Prolonged Estrogen Therapy

1967 ◽  
Vol 25 ◽  
pp. 180-181
Author(s):  
John H.L. Watson ◽  
John L. Swedo ◽  
R.W. Talley
Keyword(s):  
Mammary Carcinoma ◽  
Osmium Tetroxide ◽  
Estrogen Therapy ◽  
Ultrastructural Level ◽  
Uranyl Acetate ◽  
Human Mammary Carcinoma ◽  
Surgical Biopsy ◽  
Lead Hydroxide ◽  
Preliminary Study ◽  
Hormonal Therapies

A preliminary study of human mammary carcinoma on the ultrastructural level is reported for a metastatic, subcutaneous nodule, obtained as a surgical biopsy. The patient's tumor had responded favorably to a series of hormonal therapies, including androgens, estrogens, progestins, and corticoids for recurring nodules over eight years. The pertinent nodule was removed from the region of the gluteal maximus, two weeks following stilbestrol therapy. It was about 1.5 cms in diameter, and was located within the dermis. Pieces from it were fixed immediately in cold fixatives: phosphate buffered osmium tetroxide, glutaraldehyde, and paraformaldehyde. Embedment in each case was in Vestopal W. Contrasting was done with combinations of uranyl acetate and lead hydroxide.

Fine structure of early degenerating myofibers in the tibialis anterior of young ‘MDX’ mouse

1988 ◽  
Vol 46 ◽  
pp. 322-323
Author(s):  
H.D. Geissinger ◽  
C.K. McDonald-Taylor
Keyword(s):  
Fine Structure ◽  
Muscle Regeneration ◽  
Tibialis Anterior ◽  
Genetic Defect ◽  
Mdx Mouse ◽  
Mdx Mice ◽  
Histopathological Changes ◽  
Electron Microscopic ◽  
Dystrophic Mouse ◽  
Preliminary Study

A new strain of mice, which had arisen by mutation from a dystrophic mouse colony was designated ‘mdx’, because the genetic defect, which manifests itself in brief periods of muscle destruction followed by episodes of muscle regeneration appears to be X-linked. Further studies of histopathological changes in muscle from ‘mdx’ mice at the light microscopic or electron microscopic levels have been published, but only one preliminary study has been on the tibialis anterior (TA) of ‘mdx’ mice less than four weeks old. Lesions in the ‘mdx’ mice vary between different muscles, and centronucleation of fibers in all muscles studied so far appears to be especially prominent in older mice. Lesions in young ‘mdx’ mice have not been studied extensively, and the results appear to be at variance with one another. The degenerative and regenerative aspects of the lesions in the TA of 23 to 26-day-old ‘mdx’ mice appear to vary quantitatively.

Ultrastructural observations of the aorta of calves implanted with a mechanical left ventricular assist device

1990 ◽  
Vol 48 (3) ◽  
pp. 834-835
Author(s):  
J P Cassella ◽  
V Salih ◽  
T R Graham
Keyword(s):  
Left Ventricular Assist Device ◽  
Ventricular Assist Device ◽  
Left Ventricular ◽  
Aortic Tissue ◽  
Assist Device ◽  
Ventricular Assist ◽  
Transmission Electron ◽  
Left Ventricular Assist ◽  
Preliminary Study

Left ventricular assist systems are being developed for eventual long term or permanent implantation as an alternative to heart transplantation in patients unsuitable for or denied the transplant option. Evaluation of the effects of these devices upon normal physiology is required. A preliminary study was conducted to evaluate the morphology of aortic tissue from calves implanted with a pneumatic Left Ventricular Assist device-LVAD. Two 3 month old heifer calves (calf 1 and calf 2) were electively explanted after 128 days and 47 days respectively. Descending thoracic aortic tissue from both animals was removed immediately post mortem and placed into karnovsky’s fixative. The tissue was subsequently processed for transmission electron microscopy (TEM). Some aortic tissue was fixed in neutral buffered formalin and processed for routine light microscopy.

Sign in / Sign up

Export Citation Format

Share Document