Yulvian Sani
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Pesticide Residues in Animal Products: Problems and its Alternative Prevention Indraningsih .; Yulvian Sani
WARTAZOA, Indonesian Bulletin of Animal and Veterinary Sciences Vol 14, No 1 (2004): MARCH 2004
Publisher : Indonesian Center for Animal Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1379.446 KB) | DOI: 10.14334/wartazoa.v14i1.811

Abstract

Pesticides as agrochemicals are used to control plant diseases, however the use of pesticides may cause poisoning for human health and non-target animals, residual formation in animals and crops, and environmental contamination (soils and water). The impacts of pesticide are generally due to excessively or inappropriate use of pesticides. The surveillance on pesticide residues and/or contamination in animal products, crops and environment conducted in West Java and Lampung shows that some pesticide residues were detected in milk from West Java (Bogor and Pangalengan) including lindane, heptachlor, diazinon and endosulfan. In general, the pesticide residues in milk ofBogor were below the maximum residue limits (MRL), but two pesticide residues in milk of Pangalengan: diazinon (239 ppb) and heptachlor (60,3 ppb) appeared to be sufficiently high for human consumption. Some pesticide residues were also detected in meat, liver and fat of cattle in Bogor and Lampung. Both organochlorine and organophosphate residues were detected in samples of Bogor including: lindane (not detected/nd-135,5 ppb) and diazinon (nd-754,4 ppb) in meat; lindane (nd-16,7 ppb), diazinon (nd-969 ppb) and endosulfan (nd-191,8 ppb) in liver; and diazinon (nd-908,1 ppb) in fat. The residue level of diazinon detected in meat, liver and fat appeared to be higher than the MRL level. On the other hand, there was only organochlorine being detected in meat of Lampung. Regarding to pesticide residues being detected in soils, the source of contamination was then suspected from the contaminated soils where fodders being grown (grass, cabbages and corn). By-products of cabbage and corn are commonly used as animal feed for dairy and beef cattle respectively. The organic fanning system can be used as an alternative to minimise agricultural land contamination and pesticide residues in agricultural products. The low pesticide residues in agricultural by-products were able to reduce pesticide residues in animal products (meat and milk). The possibility of pesticide contamination should be taken into account in using agricultural by-products for animal feed to prevent pesticide residual effects in animal products. Key words: Residue, pesticides, minimalization, animal, organic
Factors Affecting Food Safety of Animal Origin in Indonesia Sjamsul Bahri; Yulvian Sani; Indraningsih .
WARTAZOA, Indonesian Bulletin of Animal and Veterinary Sciences Vol 16, No 1 (2006): MARCH 2006
Publisher : Indonesian Center for Animal Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1154.386 KB) | DOI: 10.14334/wartazoa.v16i1.864

Abstract

Based on the Indonesian Regulation Number 7 year 1996, food is defined as everything derived from biological sources and water, either processed and non-processed materials to be used as food and drinks, including food additives, food raw materials and other materials for preparation process, processing and production of food or drinks . Furthermore, food safety is a condition and an approach required to prevent the food from contamination of pathogenic microbes, toxic compounds and other xenobiotics that may affect and hazardous to human health . Food safety is basically a complexity and close related to policy . toxicity, microbiology, chemicals, nutrition status, health and public welfare . On the other hand, food safety problem is a dynamic process following the changing of public society including socioculture, health, development of science and technology as well as everything related to human life . In general, there are three main stages of process as the critical point in food safety of animal origin, namely : (1) preharvest ; (2) production ; and (3) postharvest . The main factors of these stages are discussed in this paper .   Key words : Food safety, livestock, preharvest, harvest, post harvest
The Role of Selenium in Controlling Reproductive Disorder in Beef Cattle Ening Wiedosari; Yulvian Sani
WARTAZOA. Indonesian Bulletin of Animal and Veterinary Sciences Vol 32, No 1 (2022): March 2022
Publisher : Indonesian Center for Animal Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14334/wartazoa.v32i1.2883

Abstract

Reproductive failure is regarded as a problem in the breeding of beef cattle as indicated by low calving rate, low conception rate, longer periods of calving interval, and neonatal mortality. Selenium deficiency may lead to non-infectious reproduction disorder in ruminants. The purpose of this review is to evaluate the role of selenium in preventing reproduction failure of beef cattle. In the reproduction process, selenium is required for cellular respiration, cellular oxidation, DNA and RNA replication, the integrity of cells membrane, and releasing free radicals. Selenocysteine (SeCys) is the main component of selenoprotein consisting of glutathione peroxidase (GPX) to inhibit free radicals formation and reduce risks of tissue damage. Glutathione peroxidases (GPXs) involved are: GPX-1 (cytosolic), GPX-2 (gastrointestinal specific), GPX-3 (plasma/extracellular), GPX-4 (phospholipid-hydroperoxides/intracellular) and GPX-5 (spermatozoa mitochondrial capsule). Selenium as an antioxidant is potentially involved in reducing fertility, stillbirth, abortus, and premature in cows based on oxidative stress and selenium deficiency. In male cattle, the role of selenium is to maintain the integrity of cells membrane, spermatozoa fertility, and ejaculation. The selenium deficiency may therefore affect spermatozoa fertility, motility, and fusion to oocytes due to lipid peroxidation. It is then regarded as a factor in reproductive failure mainly in the infertility of cattle. Treatments for reproductive failure due to selenium deficiency could be conducted by supplementing selenium in the mineral mix, periodical dosing of selenium salt, and providing Se-mineral block,  the combination of selenium and vitamin E or selenium supplementation in soils to improve the quality of fodder and feeds.