scholarly journals Induction of Biomolecules in Mature Leaves of Terminalia arjuna Due to Feeding of Antheraea mylitta Drury

2004 ◽  
Vol 4 ◽  
pp. 887-891 ◽  
Author(s):  
G. Abraham ◽  
G. Thomas ◽  
C.R. Babu
Keyword(s):  
Defense Mechanisms ◽  
Terminalia Arjuna ◽  
Trypsin Inhibitor Activity ◽  
Tannin Content ◽  
Important Food ◽  
Insect Feeding ◽  
Inhibitor Activity ◽  
Antheraea Mylitta ◽  
Mature Leaves ◽  
Tasar Silkworm

Terminaliaarjunais an important food plant of the tasar silkworm,Antheraea mylittaDrury. In this study, we investigated the induction of biomolecules in mature leaves of these plants subjected to insect feeding. Increase in total tannin content, lipid peroxidation, and trypsin inhibitor activity have been observed in mature leaves damaged by the insects. The growth rate of Vth instar larvae ofA. mylittafed on previously damaged foliage reduced by 87.1%. Induction of biomolecules for defense mechanisms in relation to herbivore damage has been discussed.

Ileal digestibility of protein and amino acids of feed peas with different trypsin inhibitor activity in pigs

2000 ◽  
Vol 80 (4) ◽  
pp. 643-652 ◽  
Author(s):  
F. Grosjean ◽  
C. Jondreville ◽  
I. Williatte-Hazouard ◽  
F. Skiba ◽  
B. Carrouée ◽  
...  
Keyword(s):  
Amino Acids ◽  
Trypsin Inhibitor ◽  
Crude Protein ◽  
Trypsin Inhibitor Activity ◽  
Rectal Anastomosis ◽  
Inhibitor Activity ◽  
Ileal Digestibility ◽  
Physical Chemical ◽  
Protein Amino Acids ◽  
Weight Proportion

Ileal digestibility of protein and amino acids was measured in pigs fed 13 round, tannin-free peas samples and related to the following physical, chemical and biological characteristics of these samples: thousand-seed weight, proportion of hulls, starch, fibre, crude protein, ether extract and ash contents, trypsin inhibitor activity and trypsin inhibitor activity per unit of crude protein (TIAP). Each pea sample was included in a diet containing starch, sucrose, minerals and vitamins and fed to four barrows (50 to 100 kg) fitted with an end-to-end ileo-rectal anastomosis. Standardised ileal protein and amino acid digestibilities, except for alanine of peas decreased linearly with increasing TIAP (P < 0.01) and was not affected by fiber content. For example standardized ileal digestibilities values (%) decreased by −0.1975, −0.1617, −0.2171, −0.2630, −0.2029 and −0.3536 per unit of TIAP (expressed in unit of trypsin inhibited per milligram crude protein), respectively, for crude protein and lysine, threonine, methionine, cystine and tryptophan. Key words: Peas, trypsin inhibitor activity, standardised ileal digestibilities, protein, amino acids, pig

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