The Influence of Individual and Ejaculation Factor to The Fresh Semen Quality of Ongole Crossbred Bull
Dian Ratnawati1,2,a, Gatot Ciptadi2, Sri Rahayu3 dan Trinil Susilawati2

1National Research and Innovation Agency, Research Center for Animal Husbandry, Cibinong, Bogor, Indonesia

2Brawijaya University, Faculty of Animal Husbandry, 65145, Malang, Indonesia

3Brawijaya University, Faculty of Mathematics and Natural Science, 65145, Malang, Indonesia

Abstract

Many factors affect the quality of bull fresh semen, including genetics, feed, environment, stress, age, individual and ejaculation. Nevertheless, the study about influence of individual factors and ejaculation to fresh semen quality is still limited. This study aims to examine the influence of individual factors and ejaculation on fresh semen of Ongole Crossbred bull. This research used three active individual bulls and collected fresh semen 21 times. Observation of semen quality was done at ejaculation 1 and 2.. Fresh semen quality was observed including volume, pH, mass movement, concentration, viability, abnormality, and motility of spermatozoa. Each bull has its own individual uniqueness, which is influenced by genetic and environmental factors. This condition affects to the function of reproductive organs, which can lead to different seminal plasma compositions that affect to the quality of fresh semen. Individual factor influences to the quality of fresh semen (volume, concentration, motility, all parameters of motility, viability and abnormalities of spermatozoa) of OC bull. Likewise, the ejaculation factor influences to the fresh semen quality (volume, concentration, mass movement, VCL, VSL, VAP) of fresh OC cattle.

Keywords: ejaculation, fresh semen quality, individual

Topic: Animal Reproduction