Animal Bioscience

  • 제38권3호
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  • Pages.475-488
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  • 2025
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  • 2765-0189(pISSN)
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  • 2765-0235(eISSN)
아세아태평양축산학회 (Asian Australasian Association of Animal Production Societies)
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Optimizing tropical dairy goat diets: balancing rumen degradable protein, non-fiber carbohydrates, and sulfur requirements

  • Idat Galih Permana (Department of Animal Nutrition and Feed Technology, Faculty of Animal Science, IPB University) ;
  • Annisa Rosmalia (Department of Animal Nutrition and Feed Technology, Faculty of Animal Science, IPB University) ;
  • Febby Yustika Anggarini (Department of Animal Nutrition and Feed Technology, Faculty of Animal Science, IPB University) ;
  • Despal Despal (Department of Animal Nutrition and Feed Technology, Faculty of Animal Science, IPB University) ;
  • Toto Toharmat (Department of Animal Nutrition and Feed Technology, Faculty of Animal Science, IPB University) ;
  • Dwierra Evvyernie (Department of Animal Nutrition and Feed Technology, Faculty of Animal Science, IPB University)
  • 투고 : 2024.03.14
  • 심사 : 2024.09.06
  • 발행 : 2025.03.01
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초록

Objective: This study aimed to investigate the effects of rations incorporating rumen degradable protein (RDP), non-fiber carbohydrate (NFC), and sulfur on nutrient utilization, milk production, milk quality, and the economic aspects of dairy goats. Methods: In the first study, five treatments were tested in a block-randomized design to examine in vitro fermentability and digestibility. Treatments included P0 (control diet), P1 (P0+7.5% cassava-NFC), P2 (P0+7.5% cassava-NFC and 5% soybean), P3 (P0+7.5% cassava-NFC and 5% autoclaved soybean), and P4 (P0+7.5% cassava-NFC, 5% autoclaved soybean, and 0.1% sulfur). In the second study, sixteen lactating Saanen-Ettawa crossbreed dairy goats (initial milk production = 0.97±0.25 L/head/d, 30 DIM; body weight = 44.44±7.20 kg) were assigned into four groups and fed treatment diets: R0 (basal diet), R1 (R0+12% autoclaved soybean), R2 (R0+12% autoclaved soybean and 9% cassava-NFC), and R3 (R0+12% autoclaved soybean, 9% cassava-NFC, and 0.11% sulfur). The diets were offered for 7 weeks with a two-week adaptation period. Parameters observed include milk production and quality, milk fatty acids, blood hematology and metabolites, and economic aspects. The study used a block randomized design with initial weight as a block. Results: The treatment diets in the first study had no effect on in vitro fermentability and digestibility. Treatments R2 and R3 resulted in higher milk production than R0 and R1. Milk quality remained consistent across treatments, while solid non-fat, lactose, and protein was higher in R2 and R3. Blood hematology was unaffected by the treatments. Nutrient efficiency and income over feed cost were enhanced by R2 and R3 treatments. Conclusion: Protected RDP using autoclaved soybean and cassava-NFC maintained in vitro digestibility, even though it did not improve in vitro fermentability. Precision dairy ration based on RDP, NFC, and sulfur positively impacts milk production, nutrient efficiency, and animal health in dairy goats.

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과제정보

The authors would like to acknowledge the Harokah Barokah Farm, Bogor, for their collaboration and the staff of the Laboratory of Dairy Nutrition and the Laboratory of Meat and Working Animal Nutrition for assistance in laboratory analysis.

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