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All Journal Buletin Peternakan
Jonathan Anugrah Lase
Assesment Institute for Agricultural Technology (BPTP) Maluku Utara, Tidore Kepulauan, 97813, Indonesia
Veterinary Other

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Characeristics of the Physical Changes of Muscovy Duck Eggs During the Natural Hatching Process and their Effect on Hatchability Jonathan Anugrah Lase; Rukmiasih Rukmiasih; Peni Suprapti Hardjosworo; Dian Lestari; Maria Kristina Sinabang
Buletin Peternakan Vol 45, No 2 (2021): BULETIN PETERNAKAN VOL. 45 (2) MAY 2021
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v45i2.31280

Abstract

This research aimed to determine the alteration of physical characteristics of Muscovy duck hatching egg of natural hatching. The information obtained will be used as a reference to modern hatching (artificially). Muscovy ducks as one of a poultry’s meat producer needs to be improved by population breeding with modern hatching. To be able to artificially incubate the eggs and achieve high hatchability, it is necessary to observe the natural hatching by mother duckling. The observation method was on egg shape index, hygiene of eggshell, shell temperature, egg weight loss, and hatchability. Ten mother ducklings were used during brood time with 15 eggs on each duck. The results showed the eggs that successfully hatched in this research had egg shape index equal 73.6%, egg weight loss 9.6%, eggshell temperature 36.9-38.0ºC, and hatchability 86%. The conclusion of this research during the natural hatching, the eggs undergo physical alteration that were egg weight loss, alteration in the eggshell appearance, and the temperature of the eggshell increased from day one to 28 but decreased at the end of the hatching process.
Performance and Quality of Broiler Meat During Transportation with Various Durations and ZnSO4 level Dhini Nova Widyasari; Niken Ulupi; Rudi Afnan; Rita Mutia; Jonathan Anugrah Lase
Buletin Peternakan Vol 45, No 3 (2021): BULETIN PETERNAKAN VOL. 45 (3) AUGUST 2021
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v45i3.64549

Abstract

Heat stress in the poor transportation systems will impact the oxidative stress, affecting the quality of chicken meat. The decrease in heat stress levels can be trigerred through antioxidants, one of which is ZnSO4 antioxidants, before cutting. This study aimed to examine the reduction of post-transport stress on the performance of chickens, carcasses, and the physical and chemical qualities of broiler meat treated with ZnSO4. The total broiler chickens transported were 324 roosters aged 4 weeks (with 3 replicates each). All of the transported chickens were treated with ZnSO4 at doses of 0, 80, and 160 ppm for 7 days. Next, the chickens were transported with a travel time of 1, 2, and 3 hours. The breast meats were taken (filet) to be used as research samples. A factorial randomized block design was used as the research design and the data were analyzed using ANOVA (analysis of variance). The results showed that there was no correlation between travel time and the ZnSO4 levels on broiler chicken performance (weight and carcass loss) and physicochemical quality of broiler meat (pH value, percentage of water lost, aw, cooking loss, glycogen content and MDA). Longer travel time significantly reduced live weight, carcass percentage, pH value, glycogen content, while increasing the MDA levels. The addition of ZnSO4 can significantly increase the pH value of breast meat, maintain high glycogen levels, increase carcass percentage, and inhibit MDA formation.
Co-Authors Dhini Nova Widyasari Dian Lestari Maria Kristina Sinabang Niken Ulupi Peni Suprapti Hardjosworo Rita Mutia Rudi Afnan Rukmiasih Rukmiasih