Publication: Effects of black boxing duration on the hatching performance of silkworm egg
| dc.contributor.author | Agas, Luzviminda S. | |
| dc.contributor.author | Navera, Toni Jean G. | |
| dc.date.accessioned | 2025-09-01T00:49:07Z | |
| dc.date.available | 2025-09-01T00:49:07Z | |
| dc.date.issued | 1998-03 | |
| dc.description | Full text. | |
| dc.description.abstract | This experimental study was conducted at DMMMSU-NLUC. Bacnotan, - La Union from December 1996 to January 1997, to determine the effects of black boxing duration on the hatching performance of silkworm eggs. Specifically, it sought to answer the following questions: 1. What is the effect of black boxing duration on the hatching performance of silkworm eggs In terms of: a.) percentage nurnber of hatched eggs b.) percentage number of unhatched eggs, and c.) percentage number of dead eggs 2. What is the best black boxing duration on the hatching performance of silkworm eggs? There were 9 layings which were distributed Into 3 treatments: T1- 2 days, T2- 3 days (control), and T3- 4 days. The Completely Randomized Design (CRD) was used in this study. The Analysis of Variance (ANOVA) was used to determine whether the differences betwen and among treatment means is significant set at 0.05 and O.O~ levels. The, Duncan's Multiple Range Test (DMRT) was also us to analyze further the' differences within the treatments. To determine the effect of black boxing duration, counting was done as to the color of the eggs: milky white color- hatched eggs; black color-hatched eggs; and brown color- dead eggs. This was done by using microscopes. According to our findings, T1 and T2 are the best duration of -black boxing because they have the higher percentage number of hatched eggs. In T1 98% of hatched eggs were produced, while T2 has 99% of hatched eggs. This means that both T1 and T2 are comparable and either treatment could be used in synchronizing egg hatching. According to our findings two days and three days are the best duration of black boxing because they have the highest percentage number of hatched eggs. On the other hand, T3 (4 days) or prolonged black boxing affects the hatching performance of silkworm eggs. The longer H was subjected to black boxing, the more dead and/ or unhatched eggs result. | |
| dc.identifier.citation | Agas, L. S. & Navera, T. J. (1998) Effects of black boxing duration on the hatching performance of silkworm egg [Unpublished Undergraduate thesis]. Don Mariano Marcos Memorial State University - South La Union Campus, Agoo, La Union. | |
| dc.identifier.uri | https://lakasa.dmmmsu.edu.ph/handle/123456789/276 | |
| dc.language.iso | en_US | |
| dc.publisher | Don Mariano Marcos Memorial State University - South La Union Campus | |
| dc.sdg | SDG 12 | |
| dc.title | Effects of black boxing duration on the hatching performance of silkworm egg | |
| dc.type | Thesis | |
| dspace.entity.type | Publication |