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Stefanus Nahak
Universitas Warmadewa
Agriculture, Biological Sciences & Forestry

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Effect of Male Mating Time on Landrace Pig Reproduction Stefanus Nahak; I Dewa Nyoman Sudita
Agriwar Journal Vol. 2 No. 2 (2022): Agriwar Journal
Publisher : Program Studi Magister Sains Pertanian Program Pascasarjana Universitas Warmadewa

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Abstract

Pig livestock is one of the livestock developed in Indonesia because it can adapt to environmental conditions, has good production and reproduction properties including fast growth so that the body matures and quickly, the number of liters of labor size is large, birth weight and weaning weight are high, meat production is high and can also meet human needs. To meet human needs for protein and the economy, it is necessary to increase the production and productivity of pig livestock by paying attention to reproductive aspects, and nutrition. This study aims to determine the influence of the time interval of male mating in nature which affects the conception rate, liter size, and mortality. This research was carried out in Catur Village, Kintamani District, Bangli Regency from April to August 2022. This study uses a quantitative descriptive method by mating males at time intervals and observing the results directly. The number of livestock used in this study was 6 landrace sows consisting of 1 sow mated with males at intervals of once a week, 2 heads mated at intervals twice a week, and 3 heads mated at intervals of three times a week. The variables observed in this study were conception rate, liter size, and mortality. The results showed that the interval of mating time influenced the conception rate value and the number of liters of size. The best interval from the results of this study is one mating in a week, namely a conception rate of 100%, the number of liters size 9 heads. And the time interval of mating has no effect on the mortality of the child at birth.
Substitution of Commercial Feed with Fermentation of Coffee Skins Using Local Micro-Organisms for the Reproduction Rate of Landrace Pigs Stefanus Nahak; I Dewa Nyoman Sudita; I Gusti Agus Maha Putra Sanjaya
Agriwar Journal Vol. 3 No. 1 (2023): Agriwar Journal
Publisher : Program Studi Magister Sains Pertanian Program Pascasarjana Universitas Warmadewa

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The development of pig livestock is supported by feed that has a high nutritional content, namely fermented coffee skin which can increase livestock reproduction to increase livestock production and productivity. The aim of the study was to evaluate the substitution of fermented coffee skins on the reproduction of landrace sows and at what level the substitution of fermented coffee skins affected the reproduction of landrace pig. This research method used a completely randomized design (CRD) with four treatments T0 = 100% Commercial Feed, T1 = Commercial Feed (95%) + 5% Fermented Coffee skin, T2 = Commercial Feed (90%) + 10% Fermented Coffee skin, T3 = Commercial feed (85%) + 15% fermented coffee skin. Each treatment was repeated 3 times so that there were 12 experimental livestock units. The results showed that substitution of fermented coffee skin had no significant effect on estrus, namely 2.67-3.00 days, estrus cycle 19.67-20.67 days, birth weight 1.32-1.65 kg, and mortality 0.33-1.67%, but 5% fermented coffee skin substitution had a significant effect on gestational age, namely 113.67 days, litter size of 11 tails, weaning weight of 8.05 kg. It can be concluded that 5% fermented coffee skin substitution gave the best results on estrous variables, estrus cycle, litter size, birth weight, weaning weight and mortality. Keywords: Coffee Skin, Fermentation, Pig, Reproduction
Co-Authors I Dewa Nyoman Sudita, I Dewa I Gusti Agus Maha Putra Sanjaya