JURNAL SAINS TEKNOLOGI & LINGKUNGAN

Kajian Kualitas Nutrisi Pakan Terhadap Produktivitas Ayam Kampung Super di Kabupaten Lombok Timur

Dwi Kusuma Purnamasari — 2024-03-30

The aim of the study was to determine the type and nutritional quality of feed and its effect on the productivity of super kampung chickens in The East Lombok Regency. This research was conducted by collecting data from ten farmers with a minimum population of a thousand super kampung chickens in East Lombok. Parameters observed were the type of feed used, the nutritional content of the feed, feed consumption, harvest weight, and feed conversion. The data obtained are tabulated and then discussed descriptively by comparing the nutritional content, feed consumption, harvest weight, and feed conversion obtained with the Indonesian Nasional Standard (SNI). Based on the results of the research conducted all breeders who were the target of the study used complete feed. There are 6 types of complete feed that are used and come from 4 different companies, namely GM-PS, GM-1EJ, SB11, HDBR1-168LCR, 811K NEWHOPE, HDBR 161 A. The feed consumption obtained ranges from 1.5-3.15 kg with an average of 2.26 kg/head/period. Harvested weight ranged from 0.84-0.91 kg/head with an average of 0.87 kg/head with an FCR value of 2.68. The conclusion of this study is that in general the nutritional content and quality of the feed used have met the standards based on SNI, but not followed by productivity that meets the standards.

Study Efisiensi Reproduksi Kambing Kacang dan Hasil Persilangannya Dengan Kambing Boer (Boerka) di Lombok

M Ashari — 2024-03-30

This research was carried out with the aim of determining the reproductive efficiency of Kacang goats and goats resulting from crosses with Boer goats (Boerka goats). This research was carried out in the area of development of the Kacang goat and a cross between the Kacang goat and the Boer goat (Boerka) in Lombok with the aim of determining the level of reproductive efficiency of the Boerka goat and the Kacang goat in the people's breeding business. The variables observed include: An Estrus Post Partum, Open Days, service per conception, service period and kid interval, litter size and first mating after giving birth. Location determination was carried out using purposive sampling based on the breed of goats being kept. Livestock samples were taken randomly from 60 mother goats (30 Kacang mother goats and 30 Boerka mother goats). The observation data was tabulated using the Excel program and then analyzed using the t-test. Data analysis activities use Genstat software. Goat race/breed has no significant effect (P > 0.05) on the first estrus after giving birth, service conception and number of offspring per birth, but has a significant effect (P < 0.05) on service period, days open and calving interval (kid interval). The calving interval for the mother Kacang goat is longer, namely 253.00 ± 14.87 days (8.4 months) compared to the mother Boerka goat, namely 234.86 ± 07.09 days (7.8 months).

Prediksi Kehilangan Hasil Jagung (Zea mays L.) Akibat Kompetisi Gulma Poaceae di Lahan Kering

I Ketut Ngawit — 2024-03-30

This research aims to determine the Poaceae weed species that have a significant effect on corn yield loss in dry land. The research method was descriptive and data collection using survey techniques in 10 sample plots measuring 1 m² which were placed using random sampling. Observation parameters include the number of species and populations of weeds, the population of corn plants in plot^-1 and the dry biomass weight of weeds and corn in plot^-1. Quantitative data analysis by calculating relative density, relative frequency and relative dominance values to calculate the importance value index and Summe Diminance Ratio (SDR). The results showed that the diversity, evenness, dominance and abundance of Poaceae weeds in corn plants in dry land was high. So it was found that seven species of weeds were dominant and continued to exist while the corn was growing, namely Paspalum vasginatum Sw., Leersia hexandra Sw., Digitaria longiflora (Retz.) Koel., Digitaria ciliaris (Retz.) Koel., Cynodon dactylon L., Eleusine indica Gaertn., and Panicum repens L. The competitiveness and ability to reduce corn yields of the weeds Paspalum vasginatum, Leersia hexandra and Digitaria longiflora are higher than other weeds, so that corn yield losses due to competition reach 16.45%, 7.48% and 4.40%. The weeds Brachiaria reptans, Axonopus compressus and Echinochloa colonum do not need to be controlled in corn after the plants are 45 DAT, because their competitiveness and ability to eliminate crop yields is very low.

Pertumbuhan dan Hasil Tanaman Jagung Manis (Zea mays L. Saccharata Sturt.) Akibat Defoliasi Daun Pada Waktu dan Jumlah Yang Berbeda-Beda

I Ketut Ngawit — 2024-03-30

One effort to increase sweet corn production is to defoliate the leaves at the right time. The problem is, how many leaves and when is the right time to defoliate them is not yet known. Therefore, research was conducted which aimed to determine the effect of the number of leaves and defoliation time interval on the growth and yield of sweet corn. The research was carried out in Nyurlembang Village, Narmada District, West Lombok Regency, in July - November 2022. Experimental research method with a factorial completely randomized block design grouped into three blocks. The first factor tested was the number of leaves defoliated, namely 0, 2, 4 and 6 pieces. The second factor is defoliation time, namely when the plants are 28, 42 and 56 days after planting.. Data were analyzed using farian analysis and continued with the LSD test at the 5% level. The results showed that defoliation of the number of leaves at different times had a significant effect on the growth and yield of sweet corn. There was no interaction between the two independent variables on the growth and yield of sweet corn. Defoliation of 2 leaves carried out when the plants were 28 HST had a negative effect on plant growth and yield and was not significantly different from no defoliation treatment. Defoliation of 4-6 strands carried out when the plants were 42 – 56 HST, was able to produce cob length, cob diameter, number of rows of cobs^-1, weight of fresh cobs ha^-1, dry shell weight ha^-1; and the weight of 100 dry seeds is significantly higher than the defoliation of 2 leaves and 0 leaves, so it needs to be applied in future sweet corn planting efforts.

Analisis Kesesuaian Pengembangan Wisata Pantai Elak-Elak di Kabupaten Lombok Barat

Nabilah Aprilya — 2024-06-26

The development of Elak-Elak Beach needs to consider the appropriate requirements for tourism activities. The suitability of coastal and marine resources aims to adapt to tourism activities, with the aim of preventing environmental damage in coastal areas due to tourism activities. Environmental problems in the aquatic environment (pollution) are caused by inappropriate activities in coastal environments such as tourism. This study aims to determine the suitability of Elak-Elak Beach for sustainable beach tourism and determine the carrying capacity value of the Elak-Elak Beach area. Data collection was carried out on December 6, 2023. The method used was field observation with the collection of tourism suitability data. The results of the measurement of the Tourism Suitability Index (TSI) are suitable for beach tourism, with the TSI value at 4 stations suitable for beach tourism, namely station 1 with a value of 2.825, station 2 of 2.595, station 3 of 2.22, and station 4 of 2.655. With a capacity for the category of beach recreation 214 people/day, sports tourism 136 people/day. camping 192 people/day, sitting relax 384 people/day, sunbathing 136 people/day, and swimming 315 people/day.