Sri Harimurti
Faculty of Animal Science, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia

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The Effect of 12 and 24-Hour Blue Lighting on Performance and Feeding Behaviour of Broiler Chickens Diah Reni Asih; Sri Harimurti; Wihandoyo Wihandoyo
Buletin Peternakan Vol 42, No 1 (2018): BULETIN PETERNAKAN VOL. 42 (1) FEBRUARY 2018
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v42i1.25696

Abstract

This study was conducted to assess the effects of the 12 and 24 hours blue lighting on the performance of broiler chickens. This study used 2,700 broiler chickens that were divided into three treatments which are: control lighting (K) with conventional light used by farmers, 12-hours blue lighting (B12), and 24-hours  blue lighting (B24). Each treatment was repeated three times and consisted of 300 broiler chickens each. The parameters observed were feeding behaviour including the feeding duration, feeding frequency, and broiler chickens performance. The results showed that broilers treated with the B24 and B12 lighting have longer feeding duration (P<0.05), lower feeding frequency (P<0.05), higher body weight gained (P<0.05), and lower feed conversion (P<0.05) when compared to those of chickens with K lighting. The conclusion of this study showed that continuous 24-hours blue lighting (B24) caused longer feeding duration  and lower feeding frequency and the treatment of B24 and B12 lighting gave better benefits than control lighting. 
The Effect of Age on the Quality of Semen Turkeys (Meleagris gallopavo) Riyan Nugroho Aji; Ismaya Ismaya; Sri Harimurti; Heru Sasongko; Sigit Bintara; Widya Asmarawati
Buletin Peternakan Vol 42, No 4 (2018): BULETIN PETERNAKAN VOL. 42 (4) NOVEMBER 2018
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v42i4.31372

Abstract

The purpose of this study was to observe the macroscopic and microscopic quality of Bronze turkey fresh semen on various ages. The observed toms were at the ages of 9 to 10 months (P1), 13 to 14 months (P2), and 17 to 18 months (P3), with each taken from 3 different toms. The collection was done by abdominal massage, and collected for 3 times a week in triplicate. This data was analyzed by analysis of variance (ANOVA) in a completely randomized design, followed by Duncan's New Multiple Range Test (DMRT) if there was any difference. The results showed that the average volume of turkey fresh semen were P1 (0.16 ± 0.04 ml), P2 (0.13 ± 0.02 ml), and P3 (0.10 ± 0.02 ml). The average pH of fresh semen were P1 (7.19 ± 0.05), P2 (7.12 ± 0.10), and P3 (7.06 ± 0.06). The average motility percentage of fresh semen were P1 (78.11 ± 1.38%), P2 (82.55 ± 1.17%), and P3 (74.55 ± 4.16%). The average viability percentage of fresh semen were P1 (78.63 ± 1.55%), P2 (83.26 ± 1.54%), and P3 (79.20 ± 1.06%). The average abnormal percentage of spermatozoa were P1 (3.01 ± 0.04%), P2 (3.04 ± 0.88%), and P3 (3.21 ± 0.44%). In conclusion, the best fresh semen quality is found on toms aged from 13 to14 months (P2). Furthermore, at the age 17 to18 months and more, the semen quality was decreased.