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All Journal Jurnal Ilmu Ternak Journal of Livestock Science and Production Andalasian International Journal of Entomology
Joseph F. dela Cruz
University of the Philippines Los Baños
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Veterinary

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Effect of dietary citric acid and microbial phytase on the growth performance of broiler chickens Listya Purnamasari; Michael S. Paras; Joseph F. dela Cruz
Jurnal Ilmu Ternak Vol 22, No 2 (2022)
Publisher : Fakultas Peternakan, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/jit.v22i2.40047

Abstract

Feed additives are one of the most essential parts of broiler production. Feed additives such as citric acid and microbial phytase are usually used separately despite the theory that they can work together. In this study, 320 broiler birds were reared and then fed four different treatments. 10 birds were reared per pen and there were 8 replications per treatment. The birds were reared using normal broiler management and health management protocols. The growth parameters and mortalities were recorded after each growth period. Production cost and the market price during the duration of the experiment were used to assess profitability. Out of all the treatments, the combination of the citric acid and microbial phytase gave the highest body weight, weight gain, second-lowest feed intake, best feed conversion ratio, and the highest profitability. Results indicated that there is a synergistic interaction with the combination of 3% citric acid and 500 U/kg microbial phytases. The concurrent supplementation produced a significant increase in the growth parameters and profitability.
Benefits of Green Seaweed as Protein Source for Broiler: A Review Listya Purnamasari; Janine M. Carreon; Joseph F. dela Cruz
Journal of Livestock Science and Production Vol 6, No 1 (2022): Journal of Livestock Science and Production
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jalspro.v6i1.5973

Abstract

Poultry production contributes significantly to the agricultural economy. Nutrition is one important factor in having competent poultry production. Currently, there is a lot of research about natural alternatives or feed additives that are low in cost and can help increase the overall performance and improve poultry health conditions without any adverse effects. Macroalgae such as green seaweeds can meet these parameters. It is easily available and is considered a rich source of proteins, polysaccharides, carbohydrates, vitamins, minerals, pigments, and antioxidants. Most often, seaweeds are used as feed additives for broiler chickens as they can induce a beneficial impact on production parameters (body weight (BW), average daily gain (ADG), feed consumption (FC), and feed conversion ratio (FCR) and meat quality. However, there are several challenges in using green seaweed as a protein alternative for broiler chickens such as its toxic and antinutritional components, as well as varying available supply due to seasonal effects, diseases, location, and environmental pollution. Furthermore, the main objective of this review is to evaluate the different research conducted on green seaweed as a potential protein source in broilers.
Larvicidal Efficacy of Abamectin–Pyriproxyfen Mixtures Against Musca domestica in a Poultry Farm: A Field Evaluation Cesar Daseco Alamil Jr.; Listya Purnamasari; Meriam C. Lauron; Joseph F. dela Cruz
Andalasian International Journal of Entomology Vol. 4 No. 1 (2026)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/aijent.4.1.55-62.2026

Abstract

The house fly, Musca domestica, is a notorious veterinary pest that has developed resistance to insecticides. One approach to address this concern is by mixing insecticides to overcome resistance and accelerate pest management. This study was conducted to evaluate the larvicidal efficacy of the abamectin and pyriproxyfen binary mixture against M. domestica larvae, based on its ability to reduce larval populations and inhibit pupal formation. The study was conducted in the UPLB VTH Experimental Poultry House. Forty-five boxes, each containing 500 larvae, were distributed across five treatment groups, with nine replicates per treatment. The treatments consisted of distilled water (T1), low-concentration pyriproxyfen (T2), high-concentration pyriproxyfen (T3), low-concentration abamectin-pyriproxyfen binary mixture (T4), and high-concentration abamectin-pyriproxyfen binary mixture (T5). The treatments were applied to each box on days 0 and 7, and the number of live larvae and pupae was recorded on days 7 and 14. On day 7, T5 achieved the highest larval reduction of 88.49%, which was significantly higher than the other treatments. By day 14, T3, T4, and T5 exhibited comparable larval reduction with no significant differences among them. In terms of day 7 pupal inhibition, T5 had the highest inhibition at 95.75%, followed closely by T3 and T4, with no significant difference among the three. By day 14, T5 again had the highest effect at 95.26%, with T3 and T4 also showing similarly strong results. The results of this study highlight the potential of the abamectin-pyriproxyfen binary mixture as a tool in managing house fly populations. However, the lack of significant differences between the binary mixture and the high-concentration pyriproxyfen suggested that the enhanced efficacy was not substantial.
Co-Authors Cesar Daseco Alamil Jr. Janine M. Carreon Listya Purnamasari Meriam C. Lauron Michael S. Paras