By using the extended Sturm-Liouville theorem for symmetric functions, we introduce the following differential equation ( ) 0 ) ( ) 2 ) 1 ( 1 ( ) ( 1 2 ) ( 2 2 2 = Φ − − + + + Φ′ − + − − Φ ′ ′ x x x m a x m x x x n n m n n m n γ β α , in which ) 1 2 2 2 ( 2 + − + − = m a s s β ; ) 1 )( 1 2 ( 2 ) 1 2 2 2 ( 2 + − + + − + − + = m a r r m a s s γ and ( ) ) ) 1 ( 1 )( 2 / ) 1 ( ( 2 2 n n m s r s mn ...

Onset of puberty was measured in 850 F2 Friesian x Jersey animals in a QTL discovery trial. Phenotypes for onset of puberty were defined by age at puberty based on endocrine profiles, and predicted proportion of mature live weight. A QTL analysis was conducted on the derived phenotypes using line of descent and half sib regression models. Results from the proportion of estimated mature live wei...

The aim of this study was to investigate whether dietary vitamin A level is associated with differences in adipocyte differentiation or lipid accumulation in Iberian pigs at early growing (35.8kg live weight) and at finishing (158kg live weight). Iberian pigs of 16.3kg live weight were allocated to two feeding groups, one group received 10,000IU of vitamin A/kg diet (control); the other group r...

a 70-days experiment was conducted to investigate the effects of natural zeolite (clinoptelolite) on the performance of commercial laying hens. 288 hy-line w36 strain laying hens (50 weeks old) were allotted to 6 dietary treatments including basal diet as control and basal diet supplemented with 1, 2, 3, 4 and 5% zeolite that were fed ad -libitum throughout the experiment. experimental diets fo...

In this paper, by using the extended Sturm-Liouville theorem for symmetric functions, we introduce the following differential equation ( ) 0 ) ( Φ ) 2 ) 1 ( 1 ( ) ( Φ 1 ) 1 ( 2 ) ( Φ ) 1 ( 2 2 2 2 = − − + + + ′ − + − + + − ′ ′ − x x x m a x mb a x x x x n n m n n m n m γ β α , in which ) 1 2 2 2 ( 2 + − + − = m a s s β ; ) 1 )( 1 2 ( 2 ) 1 2 2 2 ( 2 + − + + − + − + = m a r r m a s s γ and ( )( ...

Intrapartum death in multiparous gestations in sows (Sus scrofa) is often caused by hypoxia. There is little information in the literature on the assessment of the placenta in relation to intrapartum death in piglets. The aim of this study was to evaluate the impact of the placental area and weight upon piglet birth characteristics and intrapartum death. Litters from 26 Landrace-Yorkshire sows ...

The present study was conducted on Hubbard classic broiler parents in the Bangladesh Rural Advancement Committee (BRAC) poultry farm in Chittagong, Bangladesh to know the productive, reproductive performance and for modelling the performances for their prediction. The average live weight and egg production of Hubbard classic broiler parent were obtained as 3412.48 ± 137.773 g/hen and 170.99 ± 1...