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| Shen,X; Wang,Y; Cui,C; Zhao,X; Li,D; Zhu,Q; Jiang,X; Yang,C; Qiu,M; Yu,C; Li,Q; Du,H; Zhang,Z; Yin,H. |
| ABSTRACT The melanocortin 1 receptor (MC1R) gene plays a key role in controlling the deposition of melanin. In mammals, the MC1Rgene is regarded as a major candidate gene in the control of melanin formation. In domestic animals, the MC1R gene mainly controls the expression of coat, skin, and plumage color in mammals and birds. In order to breed chickens with dark-green shank faster, we screened the molecular markers for shank color in a HS chicken population by exploring the relationship between polymorphism of the MC1R gene and three different shank colors (light green, dark green and yellow). Two primer pairs for code region of the MC1R gene were designed in the basic of chicken genomic sequence. DNA sequencing was performed to detect the polymorphisms... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: HS chicken; MC1R gene; Polymorphisms; Shank color.. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000300314 |
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| Ren,L; Zuo,J; Li,G; Zheng,L; Zhang,Z; Ye,H; Xia W,I; Feng,D. |
| ABSTRACTThis experiment was conducted to evaluate the combination effect of low dietary non-phytate phosphorus (NPP) concentrations, phytase (PHY) levels, and 25-hydroxycholecalciferol (25-OH-D3) levels on the growth performance and meat quality of broilers. Two levels of NPP, two levels of PHY, and two levels of 25-OH-D3 resulted in a 2�2�2 factorial arrangements, with eight treatments (TRT). The birds on TRT 1-4 were fed diet 1 (NRC NPP was reduced by 0.1) and the birds on TRT 5-8 were fed with diet 2 (NRC NPP was reduced by 0.2). Each diet was mixed with different levels PHY and 25-OH-D3. Performance and meat quality parameters were measured. Results showed that during entire experiment the most advantageous effects were obtained with TRT 3 (NRC NPP... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler; Non-phytate phosphorus; Performance; Phytase; 25-hydroxycholecalciferol. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000300371 |
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| Yu,C; Qiu,M; Jiang,X; Zhang,Z; Du,H; Li,Q; Xia,B; Song,X; Hu,C; Xiong,X; Yang,L; Peng,H; Chen,J; Wang,Y; Yang,C. |
| ABSTRACT Chinese indigenous chicken breeds are geographically widespread, and a total of 116 indigenous chicken breeds are listed as Chinese national genetic resources. However, these indigenous chicken breeds are facing serious challenges as declining population and germplasm degeneration because lots of commercial chicken breeds had been introduced. In this study, the genetic variations of eleven Chinese indigenous chicken breeds of Sichuan province and three commercial chicken breeds were investigated based on the partial mitochondrial DNA D-loop of 487bp in length. 147 individuals from 14 breeds were examined and 34 haplotypes were observed. Genetic diversity analysis showed that the highest haplotype diversity level was found in Dahen Chicken (DH)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chinese chicken; Mitochondrial DNA; Cluster analysis; Gene flow; Phylogeny. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000400308 |
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| Yang,G; Zhang,Z; Zhang,G; Zhang,H; Han,X; Busso,CA. |
| Phosphorus is an essential macronutrient for all living plants and plant production. Simultaneously, atmospheric nitrogen deposition also affects plant productivity at a global scale. However, few studies have investigated how plants respond to P addition while simultaneously considering N deposition. We investigated plant biomass, nutrient status and stoichiometric ratios on Potentilla tanacetifolia in response to P fertilization under contrasting N addition rates in a typical meadow steppe in Inner Mongol ia, China. Aboveground biomass of P. tanacetifolia increased under increasing levels of P fertilization under conditions of N addition. However, there was no significant change in biomass when only phosphorus was added. Plant leaf and stem P... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nitrogen; Phosphorus; N: P ratio; Plant organs. |
| Ano: 2016 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572016000100014 |
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| Zhou,C; Busso,C; Liu,J; Yang,YG; Sun,Y; Fang,YZ; Zhang,QQ; Zhou,YB; Wang,YN; Zhang,Z; Wang,ZW; Yang,YF. |
| The objective of this study was to analyze the relationships between total aboveground plant biomass versus altitude, latitude, longitude, mean annual temperature, mean annual precipitation, and species diversity. Simple linear regression analysis was used to study these relationships. Results showed that altitude was significantly, positively (R² = 0.038, P<0.01) related with total plant aboveground biomass. Meanwhile, when longitude (R² = 0.124, P<0.001) and latitude (R² = 0.221, P<0.001) increased, total aboveground biomass decreased. The relationship between biomass and mean annual precipitation was significantly, positively linear (R² = 0.149, P<0.001). Mean annual temperature was signifcantly, negatively correlated with biomass (R² =... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Productivity; Species diversity; Climate; Grasslands. |
| Ano: 2016 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572016000100017 |
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