( ( ( ( ( ( Length ( of ( estrous cycle ) ) ) , ) ( duration ( of estrus ) ) ) , ) ( time ( of ( ( ovulation ( , ( fertilization ( and ( embryo survival ) ) ) ) ) ( in ( grade ( Brahman heifers ) ) ) ) ) ) ) . )
(ROOT (NP (NP (NNP Length)) (PP (IN of) (NP (JJ estrous) (NN cycle))) (, ,) (NP (NP (NN duration)) (PP (IN of) (NP (NNS estrus)))) (, ,) (NP (NP (NN time)) (PP (IN of) (NP (NP (NN ovulation) (, ,) (NN fertilization) (CC and) (NN embryo) (NN survival)) (PP (IN in) (NP (NN grade) (NN Brahman) (NNS heifers)))))) (. .)))
Length of estrous cycle, duration of estrus, time of ovulation, fertilization and embryo survival in grade Brahman heifers .
(ROOT (S (NP (NNP Ovulation)) (VP (VBZ occurs) (SBAR (IN before) (S (NP (DT the) (NN endometrium)) (VP (VBZ thickens) (PP (IN in) (NP (JJ estrous) (NNS cycles))))))) (. .)))