Journal articles published externally

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Browsing Journal articles published externally by Subject "Animal nutrition"

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    Improved feed efficiency and nutritional property effects of honey from Apis mellifera L. as an additive for broiler chickens’ drinking water
    (DMMMSU Research and Extension Journal, 2023-12) Tattao, Rosemarie O.; Panas, Joseph A.; de Castro, David T.; Soliba, Mishima P.; Calimpang, Ison A.; Pajarillo, Rolyne Mae C.
    Antimicrobial usage is particularly high in poultry production. Honey as a water supplement to poultry has been explored as a natural and safe antibiotic alternative. This study aimed to investigate the effects of different levels of honey as a water supplement on broilers' growth performance and chemical properties. Five dietary treatments were used: no supplement (T1), commercial electrolytes (T2), 5mL honey (T3), (7.5mL honey (T4), and 10mL honey (T5) per liter of water. The experiment used 150 1-day-old Cobb-400 broiler chicks, assigned to five treatments with three replications of ten (10) birds each (N=30) employing the Complete Block Design (RCBD) in three blocks. Results indicated that 5mL/L-10mL/L honey supplementation led to a significant (p < 0.05) decrease of 4.3% to 7% in feed consumption compared to those with electrolytes. Similarly, using 5mL/L of honey showed 12.5% lower FCR compared with T2 and 24.3% compared with T1. However, a higher level of honey was comparable to T2, indicating that honey supplementation improved feed utilization and reduced feed cost at a certain level. Results of the proximate analysis, particularly on moisture content (MC), crude protein (CP), crude fat (CF), and total carbohydrates ((TC), revealed numerical differences. Samples with 5mL/L to 7.5mL/L levels of honey showed a higher MC, CP, and TC content and lower CF than T2. This implies that honey as a drinking water supplement offers practical advantages in feed consumption and efficiency and in improving the chemical and nutritional properties of chicken meat. A choice for healthier production.
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    Levels of Galiang (Xanthosoma saggitifolium) corm meal as replacement of corn in broiler ration
    (International Journal of Agricultural Technology, 2026-01) Aglipay, Medelyn A.; Rodriguez, Cynthia M.; Aspiras, Mary Fe
    Galiang Corm Meal is one nutrient-dense feed ingredient that is a potential partial substitute for corn. Corn contains 4.38% crude protein, 2.61% crude fiber, 1.25% ether extract, 4.68% minerals & 8.08% moisture while GCM may be better than corn since both were used together to formulate feed; hen flock bands had larger final body weights (1.565 kg) and were heavier than their counterparts receiving only corn weight gain (1.518 kg) at the end of the feeding trial. Statistically significant was revealed more feed consumed by birds compared to others with the lowest amount of feed needed/kg gain for birds that received GCM at 50% inclusion level. GCM added between 25%-75% levels resulted in growth performance, feed usage efficiency & carcass yield of broilers that were fed both products compared to commercial rations. Economically GCM available at a 50% substitution level provided the highest gross margin/bird making this level of dietary inclusion the best cost benefit ratio of the dietary treatments evaluated.
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    Screening of mulberry varieties for larval growth, cocoon yield, and quality through silkworm rearing
    (Korean Society Of Sericultural Science, 2023) Dacayanan, Merlita A.; Damasco, Crestilyn N.; Libunao, Jarson P.; Sampaga, Mario B.; Galano, Edna A.
    Mulberry (Morus spp.) production is a vital activity in sericulture along with rearing of silkworms (Bombyx mori L.) for silk production. The Sericulture Research and Development Institute (SRDI) conducted a study that evaluated 11 mulberry varieties, including nine newly-evolved mulberry hybrids and two check varieties. These mulberry varieties were fed to silkworm hybrid, DMMMSU 115 x 100. The rearing performance of DMMMSU 115 x 100 was determined based on the silkworm economic traits such as weight of 10 matured larvae, cocoon weight, shell weight, shell percentage, cocoon yield, reelability percentage, filament length and filament size. Six silkworm rearing trials were conducted with 50 silkworm larvae per treatment in three replicates. The data were analyzed in a one-way Analysis of Variance. Significant differences were tested further using Tukey’s Honest Significant Difference. Mulberry varieties that garnered an evaluation index value of higher than 50 were identified and selected. Results of the study revealed significant variations among the mulberry varieties based on the parameters gathered except on the reelability of cocoons, filament length and size. Matured silkworm larvae fed with Alf 55 were significantly heavier and higher cocoon yield compared to those fed with Alfonso and S54. Alf 32, Alf 55, Alf 58, Bat 37 and Bat 73 were identified as potential varieties and highly recommended as feed for the silkworm hybrid, DMMMSU 115 x DMMMSU 100.