Research Progress

• How Genotype and Dietary Protein Intake Co-regulate Expression of Amino Acid/Peptide Transporters in Porcine Skeletal Muscle?

  A balanced supply of dietary proteins and amino acids (AAs) is necessary for the optimal growth, development, and reproduction of animals.As pig strains may vary in their capacity to recognize changes in AA concentration in body fluids, the utilization of free AAs may also differ among pig strains. According to Ph.D candidate LIU Yingying from Institute of Subtropical Agriculture, Chinese Academy of Science(ISA), differences among different strains of pigs in their muscle growth, meat quality, and intermuscular adipose deposition, may lead to dietary protein-dependent differences in AA metabolism.

  Jan 27, 2016
• Where does All the Water Go in Subtropical Fengcong Karst Areas of Southwest China?

  when rainfall falls on the karst system, where does water go? What flow path does the water take? What is the percentage of water can be used by humans? And will the climate extreme cause more severe water shortage in the karst area of southwest China?Using plot-scale rainfall simulations on a trench excavated to the epikarst lower boundary (with a depth of about 4 m), a team of researchers from the Institute of Subtropical Agriculture, Chinese Academy of Sciences (ISA), investigated the rainfall partitioning pattern of a soil-mantled, humid subtropical soil-epikarst system characterized by shallow soils overlaying a highly irregular epikarst surface.

  Jan 26, 2016
• Pig genotype, diet, and physiological stage interact on signaling pathways related to protein synthesis

  Prof. YIN Yulong's group from the Institute of Subtropical Agriculture, Chinese Academy of Sciences (ISA) speculated that the difference between these two genotypes of pigs in their muscle growth, meat quality, and intermuscular adipose deposition may lead to dietary protein-dependent differences in protein deposition and related signaling pathways in different types of skeletal muscles.

  Nov 17, 2015
• Early-weaning Effects Expression of Proteins Involved in Energy Production

  a study cooperated by Dr. XIONG Xia and Dr. YANG Huangsheng from Institute of Subtropical Agriculture, Chinese Academy of Sciences (ISA)has found that early-weaning differentially affect the expression of proteins involved in energy production of enterocytes along the jejunal crypt-villus axis.

  Nov 10, 2015
• Hydrogen in Headspace and Bicarbonate in Media Has Effects on Methane Production and Rumen Fermentation

  PhD Qiao Junyi in Institute of Subtropical Agriculture, Chinese Academy of Sciences (ISA)used NaH13CO3 and H2 as materials to investigate the 13CH4 production efficiency(PE) produced by the reduction of NaH13CO3, and they used lucerne hays as substrates to evaluate the effects of NaH13CO3and H2 additions on ruminal fermentation, CH4 production and methanogen populations used in the vitro gas production techniques.His study indicates that both CO2 and H2 concentrations can influence the methanogenesis in the rumen, and a small part of the CO2 utilized for methanogenesis is from bicarbonate(such as NaHCO3) in media. The headspace hydrogen and media bicarbonate had significant effects on CH4 production and rumen fermentation.

  Nov 03, 2015
• When Exchange Diet, What Happened to Western and Indigenous Chinese Pig Breeds?

  Although muscle growth and meat quality considerably differ between Western and indigenous Chinese pig breeds, it is not clear how nutrients mediate the effect of genetic background on animal growth and meat quality.Ph.D candidate LIU Yingying from Institute of Subtropical Agriculture, Chinese Academy of Sciences (ISA), the livestock industry faces the challenge of increasing the intramuscular fat (IMF) content of pork so that consumers may have a satisfactory experience, while simultaneously producing minimal visible fat, which is a deterrent to health-conscious consumers.

  Oct 14, 2015
• Non-essential Amino Acids: Don't Ignore Them!

  Researchers in Prof. YIN Yulong’s group from the Institute of Subtropical Agriculture, Chinese Academy of Sciences (ISA) have spent many years in this field and found that NEAA (i.e. arginine, glutamate, glutamine, aspartate, cysteine, and glycine) play important roles in regulating gene expression, cell signaling pathways, digestion and absorption of dietary nutrients, antioxidative responses, and immunity. Meanwhile, emerging evidence indicates dietary essentiality of "nutritionally non-essential amino acids" for animals and humans to achieve their full genetic potential for growth, development, reproduction, lactation, and resistance to metabolic and infectious diseases.

  Sep 28, 2015
• Why Rhabdolaimus dominates the nematode communities in karst mountain peaks in southwest China?

  Researchers from the Institute of Subtropical Agriculture, Chinese Academy of Sciences (ISA) determined the composition of soil nematode communities along a vegetation succession sere on karst mountain peaks in the wet and dry seasons, at karst Huanjiang Observation Research Station for Karst Ecosystems in Guangxi. They divided four common plant communities into moss crust, moss crust with sparse grasses, sparse grasses and sparse dwarf shrubs.

  Sep 18, 2015
• For Protecting Water Quality, Focus on Phosphorus Loads and Contributing Factors

  a team of researchers from Institute of Subtropical Agriculture, Chinese Academy of Sciences (ISA) and China Agricultural University, conducted a study to investigate the total P loads and contributing factors from one forested and nine agricultural watersheds with areas of 9-5212 ha in a hilly region of Hunan Province in a subtropical region of Southern China from 2010 to 2012.

  Sep 15, 2015
• A Novel Non-thermal Method to Control Milk Safety

  a Chinese researcher -Dr. YIN Fugui from Institute of Subtropical Agriculture, Chinese Academy of Sciences and his foreign colleagues from Guelph Food Research Center, Agriculture & Agri-Food Canada conducted a study to investigate the inactivation efficacy of monochromatic UV light against pathogenic E. coli as well as to examine the potential reactivation of it at refrigerated and ambient temperatures following exposure to these three UV light sources in bovine milk.

  Sep 14, 2015