نتایج جستجو برای: rearing

تعداد نتایج: 10256  

Journal: :Journal of applied physiology 2006
J Chadwick Smith W Allen Moore Stephen J Goldberg Mary S Shall

Previously, we showed that artificial rearing using the "pup in a cup" model results in decreased tongue activity and caused some minor alterations in the tongue retrusor musculature. However, the artificial rearing time frame previously chosen was brief (11 days). The purpose of the present investigation was to extend the artificial rearing period from postnatal days 3 to 21 (P21) to determine...

2009
S. NAVRATIL

Navratil S.: Parasitoses in the Fry of Selected Freshwater Fish Species under the Conditions of Stripping and Rearing. Acta vet. Bmo. 60. 1991: 357-366. During the period from 1984 to 1989. the problem of parasitic invasion into the artificially reproduced and reared fry of the freshwater fish species (Barbus barbus, Chondrostoma nasus. Leuciscus cephalus, Aspius aspius) wereinvestigated at a s...

2016
Silvia M. R. R. Marton Gisela Lüscher Michael S. Corson Michael Kreuzer Gérard Gaillard

Citation: Marton SMRR, Lüscher G, Corson MS, Kreuzer M and Gaillard G (2016) Collaboration between Mountain and Lowland Farms Decreases Environmental Impacts of Dairy Production: The Case of Swiss Contract Rearing. Front. Environ. Sci. 4:74. doi: 10.3389/fenvs.2016.00074 Collaboration between Mountain and Lowland Farms Decreases Environmental Impacts of Dairy Production: The Case of Swiss Contr...

Journal: :The British journal of nutrition 1987
J L Smart R F Massey S C Nash J Tonkiss

1. Four groups of rat pups were reared: mother-reared (MR) control (well-fed) and undernourished (MRC and MRU respectively) and artificially reared (AR) control and undernourished (ARC and ARU respectively). Pups for artificial rearing were fitted with a gastric cannula on postnatal day 5 and were fed, by intermittent gastric infusion, expressed rats' milk (days 5-7), mixtures of rats' milk and...

Journal: :Journal of invertebrate pathology 2005
J E Cossentine L B M Jensen K C Eastwell

Incidences of potential per os Cydia pomonella granulovirus (CpGV) transmission within a large codling moth colony were identified. CpGV was detected in the water which is used to wash egg sheets. When pre-neonates were extracted from eggs prior to emergence and tested for the presence of CpGV, 40% were found to carry amounts of CpGV detectable by a polymerase chain reaction (PCR) assay, sugges...

2014
Efrén O. Pérez Marc J. Hetherington

Using a scale of child rearing preferences, scholars find that African Americans are far more authoritarian than Whites. We argue that this racial gap in authoritarianism is largely a measurement artifact. The child rearing scale now used to measure authoritarianism is cross-racially invalid because it draws heavily on a metaphor about hierarchy. Akin to someone who favors enforcing conformity ...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2011
Anne K Kreile Tobias Bonhoeffer Mark Hübener

Stripe rearing, the restriction of visual experience to contours of only one orientation, leads to an overrepresentation of the experienced orientation among neurons in the visual cortex. It is unclear, however, how these changes are brought about. Are they caused by silencing of neurons tuned to non-experienced orientations, or do some neurons change their preferred orientation? To address thi...

2007
S. C. Loerch K. E. McClure C. F. Parker

Effects of number of lambs suckled and supplemental protein source on ewe performance were determined. Lactat ion performance of ewes nursing twin or triplet lambs was compared in Exp. 1 and 2. In Exp. 1, ewes giving birth to and nursing triplets produced 21% (P<.05) more milk/unit metabolic body weight, were 10% more efficient in the conversion o f feed to milk and produced 26% (P<.05) more kg...

2015
Melissa L. Evans Tiago S. Hori Matthew L. Rise Ian A. Fleming

Captive rearing programs (hatcheries) are often used in conservation and management efforts for at-risk salmonid fish populations. However, hatcheries typically rear juveniles in environments that contrast starkly with natural conditions, which may lead to phenotypic and/or genetic changes that adversely affect the performance of juveniles upon their release to the wild. Environmental enrichmen...

Journal: :Animal : an international journal of animal bioscience 2010
I Walstra J Ten Napel B Kemp H Schipper H van den Brand

This study aimed to investigate whether pre- and early postnatal experiences of rearing hens contribute to the ability to cope with infectious challenges at an older age. In a 2 × 2 factorial arrangement, 352 Lohmann Brown chicks were exposed to either suboptimal or optimized incubation plus hatch conditions, and to cage or enriched rearing from week 0 to 7 of age. After week 7 all rearing cond...

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