Effects of extracerebral dopamine on salsolinol‐ or thyrotropin‐releasing hormone‐induced prolactin (PRL) secretion in goats          下载免费PDF全文

Yuki Inaba  Yuki Kato  Azumi Itou  Aoi Chiba  Ken Sawai  Ferenc Fülöp  György Miklos Nagy  Tsutomu Hashizume 《Animal Science Journal》2016,87(12):1522-1527

The aim of the present study was to clarify the effect of extracerebral dopamine (DA) on salsolinol (SAL)‐induced prolactin (PRL) secretion in goats. An intravenous injection of SAL or thyrotropin‐releasing hormone (TRH) was given to female goats before and after treatment with an extracerebral DA receptor antagonist, domperidone (DOM), and the PRL‐releasing response to SAL was compared with that to TRH. DOM alone increased plasma PRL concentrations and the PRL‐releasing response to DOM alone was greater than that to either SAL alone or TRH alone. The PRL‐releasing response to DOM plus SAL was similar to that to DOM alone, and no additive effect of DOM and SAL on the secretion of PRL was observed. In contrast, the PRL‐releasing response to DOM plus TRH was greater than that to either TRH alone or DOM alone and DOM synergistically increased TRH‐induced PRL secretion. The present results demonstrate that the mechanism involved in PRL secretion by SAL differs from that by TRH, and suggest that the extracerebral DA might be associated in part with the modulation of SAL‐induced PRL secretion in goats.  相似文献   

Loads on Muscles,Tendons and Bones in the Hind Extremities of Sheep – A Theoretical study*     

P. O. Hutzschenreuter  E. Sekler  G. Faust 《Anatomia, histologia, embryologia》1993,22(1):67-82

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Effects of dietary ingredients on manure characteristics and odorous emissions from swine     

Gralapp AK  Powers WJ  Faust MA  Bundy DS 《Journal of animal science》2002,80(6):1512-1519

Two feeding studies were conducted to examine the impact of dietary inclusion of specific feed ingredients on manure characteristics and manure odor. In one study, 72 finishing pigs were used to evaluate the effects of distillers dried grains with solubles (DDGS) on pig performance, manure characteristics, and odorous emissions. Three diets containing 0, 5, and 10% DDGS were fed during six 4-wk feeding periods. Week 1 served as a dietary adjustment period. Animals were housed in two feeding rooms (six pigs/room) with one treatment/room. A new group of animals (average initial BW = 85.8 kg) was used for each feeding period. Diets were replicated four times. Rooms were equipped with individual shallow manure storage pits that were cleaned once weekly (d 7). On d 4 and 7 of each week, manure pit samples, for chemical analyses, and air samples, for olfactometry analysis, were collected from each room. Odor dilution threshold was greater on d 7 than on d 4 of manure storage across all treatments (P < 0.01). No treatment differences in manure composition were noted. In the second study, weaned pigs (approximately 5 wk old) were fed isonitrogenous diets containing 0, 1.5, or 3% bloodmeal. Pigs were housed by diet (three pigs/diet) in one of four individual feeding rooms. A new group of pigs was used for each of the two, 4-wk feeding periods. During period 1, the 3% bloodmeal diet was fed in two of the four rooms; the 0% bloodmeal diet was fed in two rooms during period 2. Manure samples, for chemical analyses, and air samples, for olfactometry analysis, were collected 2 d per week (d 4 and d 6) from each room during wk 2 through 4. No significant treatment differences were observed for odor dilution threshold (P = 0.30). Longer manure storage time, 6 d vs 4 d, resulted in a larger odor dilution ratio (P < 0.01). Manure composition was unaltered by storage time. Results suggest that odor intensifies during storage.  相似文献   

The p-value approach to quantitative liquid-liquid extraction of pesticides from water. 1. Organophosphates: choice of pH and solvent   总被引：1，自引：0，他引：1  

I H Suffet  S D Faust 《Journal of agricultural and food chemistry》1972,20(1):52-56

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D-glucose: preferential binding to brush borders disrupted with tris(hydroxymethyl)aminomethane   总被引：2，自引：0，他引：2  

R G Faust  S L Wu  M L Faggard 《Science (New York, N.Y.)》1967,155(767):1261-1263

The actively transported sugar D-glucose binds to brush borders disrupted with tris(hydroxymethyl)aminomethane in preference to D-mannose and L-glucose, which are not actively transported. This preferential binding of D-glucose is not dependent on either added Na(+) or adenosine triphosphatase activity stimulated by Na(+) with K(+) and Mg(2+), but it is temperature-dependent and is completely inhibited by 0.1 millimolar phlorizin and 1 millimolar mercuric chloride.  相似文献   

CLADONEMA     

Faust EC 《Science (New York, N.Y.)》1914,40(1043):934

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Disaster management. Confronting disaster losses     

Bouwer LM  Crompton RP  Faust E  Hoppe P  Pielke RA 《Science (New York, N.Y.)》2007,318(5851):753

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Kinetics of chemical oxidation of dipyridylium quaternary salts     

H M Gomaa  S D Faust 《Journal of agricultural and food chemistry》1971,19(2):302-307

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Genetic and economic analyses of female replacement rates in the dam-daughter pathway of a hierarchical swine breeding structure.     

M A Faust  O W Robison  M W Tess 《Journal of animal science》1992,70(7):2053-2064

A stochastic life-cycle swine production model was used to study the effect of female replacement rates in the dam-daughter pathway for a tiered breeding structure on genetic change and returns to the breeder. Genetic, environmental, and economic parameters were used to simulate characteristics of individual pigs in a system producing F1 female replacements. Evaluated were maximum culling ages for nucleus and multiplier tier sows. System combinations included one- and five-parity alternatives for both levels and 10-parity options for the multiplier tier. Yearly changes and average phenotypic levels were computed for performance and economic measures. Generally, at the nucleus level, responses to 10 yr of selection for sow and pig performance in five-parity herds were 70 to 85% of response in one-parity herds. Similarly, the highest selection responses in multiplier herds were from systems with one-parity nucleus tiers. Responses in these were typically greater than 115% of the response for systems with the smallest yearly change, namely, the five-parity nucleus and five- and 10-parity multiplier levels. In contrast, the most profitable multiplier tiers (10-parity) had the lowest replacement costs. Within a multiplier culling strategy, rapid genetic change was desirable. Differences between systems that culled after five or 10 parities were smaller than differences between five- and one-parity multiplier options. To recover production costs, systems with the lowest returns required 140% of market hog value for gilts available to commercial tiers, whereas more economically efficient systems required no premium.  相似文献   

Genetic variant BDNF (Val66Met) polymorphism alters anxiety-related behavior     

Chen ZY  Jing D  Bath KG  Ieraci A  Khan T  Siao CJ  Herrera DG  Toth M  Yang C  McEwen BS  Hempstead BL  Lee FS 《Science (New York, N.Y.)》2006,314(5796):140-143

A common single-nucleotide polymorphism in the brain-derived neurotrophic factor (BDNF) gene, a methionine (Met) substitution for valine (Val) at codon 66 (Val66Met), is associated with alterations in brain anatomy and memory, but its relevance to clinical disorders is unclear. We generated a variant BDNF mouse (BDNF(Met/Met)) that reproduces the phenotypic hallmarks in humans with the variant allele. BDNF(Met) was expressed in brain at normal levels, but its secretion from neurons was defective. When placed in stressful settings, BDNF(Met/Met) mice exhibited increased anxiety-related behaviors that were not normalized by the antidepressant, fluoxetine. A variant BDNF may thus play a key role in genetic predispositions to anxiety and depressive disorders.  相似文献