Two new species of the genus Lytocestus Cohn, 1908 i.e. Lytocestus follicularae Sp.Nov. and Lytocestus osmanabadensis Sp.Nov. were collected from Clarias batrachus (Linneus, 1758) from different part of Maharashtra State India. The present parasites are differ from all the known species of the genus Lytocestus Cohn, 1908 in having length of worm, number and shape of testes, shape of cirrus pouch, shape of ovary, position of vagina and structure of vitellaria.

Existence of piggery industries depends mainly reduction losses due to mortality of piglets with better pre-weaning litter traits and higher growth rate . Therefore the present investigation was undertaken with an objective to study the effect of various factors affecting different economic traits in 3 genetic groups of piglets. Genetic group and parity had significant effect on all the 5 economic traits, viz., litter size at birth, litter size at weaning, litter weight at birth, litter weight at weaning and farrowing interval. The period of farrowing had significant effect on litter size at birth at litter size at birth and farrowing interval, whereas season had non-significant effect on all the five traits. The litter traits were superior in exotic followed by crossbreds and desi pigs. In general, litter traits showed increasing trend from 1st to 6th Parity.