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All Journal Jurnal Ilmu Ternak Veteriner Animal Production : Indonesian Journal of Animal Production
T Sutardi
Jurusan INMT, Fakultas Peternakan IPB
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Veterinary

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Strategic study on energy-protein requirements for local sheep: 4. Ewes during late pregnancy Mathius, I-W; Sastradipradja, D; Sutardi, T; Natasasmita, A; Sofyan, L.A; Sihombing, D.T.H
Indonesian Journal of Animal and Veterinary Sciences Vol 7, No 3 (2002)
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (212.288 KB) | DOI: 10.14334/jitv.v7i3.291

Abstract

Thirty-six Javanese thin-tail ewes were set out to study the energy and crude protein requirements for the last eight-week of pregnancy. The ewes were randomlly assigned to a 3 x 3 factorial arrangement and offered nine diets comprising three levels of energy (low, medium and high) and three levels of crude protein (low, medium and high) with four ewes per treatment. The diets were pelleted and offered four times daily at approximately in the same amount. Results showed that, despite a difference of energy concentration in the diets, dry matter intake was not significantly (P>0.05) affected, but crude protein concentration was (P<0.05). Energy concentration in the diet also had no effect (P>0.05) on protein intake. However, protein concentration in the diets significantly affected on protein intake and protein excreted in the feces. Moreover, an interaction between energy and protein levels was not detected on energy and nitrogen availability utilization. This study demonstrated that a high efficiency on nitrogen utilization could be achieved on low crude protein diets. It was also found that crude protein and energy requirements for maintanance during pregnancy phase were 0.67 g/kg BW0.75 and 0.425 MJ EM/kg BW0.75 respectively.   Key words: Protein-energy requirement, pregnancy phase, ewes  
Strategic study on energy-protein requirements for local sheep: 5. Ewes during lactation phase Mathius, I-W; Sastradipradja, D; Sutardi, T; Natasasmita, A; Sofyan, L.A; Sihombing, D.T.H
Indonesian Journal of Animal and Veterinary Sciences Vol 8, No 1 (2003)
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (205.531 KB) | DOI: 10.14334/jitv.v8i1.370

Abstract

Thirty-six Javanese thin-tail ewes in the end of late pregnancy phase were set out to study the energy and crude protein requirements during the first eight-week of lactation phase. The ewes were penned individually in doors and randomly assigned to a 3 x 3 factorial arrangement, consisting of three levels of energy (low, medium and high) and three levels of crude protein (low, medium and high) diets with four ewes per treatment. The diets were pelleted and offered four times daily in approximately equal amount. Feed intake, nutrient digestibility, body weight and milk production were recorded. Results showed that, total lamb birth weights was not affected, but protein content on the ration treatments significantly altered (P<0.05) milk yield and composition. Dry matter intake due to feeding treatments was not significantly affected (P>0.05), while crude protein content on the ration highly significantly affected (P<0.01). Based on data recorded, the energy and protein requirements for ewes during lactation phase are highly significantly depended on ewes’ live weight, milk production and the ratio of energy metabolism and crude protein of the ration. It was concluded that in order to fulfil the crude protein and energy needs of the ewes during lactation phase, the ration given should contain crude protein and energy as much as 16% (based on dry matter) and 13.4 MJ/kg dry matter respectively.   Key words: Energy-protein requirement, lactation phase, local ewes  
The Effects of Superovulation Prior to Mating and Zinc Supplementation on Milk Yields in Etawah-Grade Does Adriani, Adriani; Sutama, IK; Sudono, A; Sutardi, T; Manalu, W
ANIMAL PRODUCTION Vol 6, No 2 (2004): May
Publisher : Universitas Jenderal Soedirman, Faculty of Animal Science, Purwokerto-Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (138.737 KB)

Abstract

Thirty six Etawah-grade does (BW ranged from 20.4 to 44.2 kg and age ranged from 2.5 to 7 years) were used to study the effects of superovulation prior to mating and zinc supplementation on milk yields. The experimental does were assigned into a randomized block design with a 2 x 3 factorial arrangement. The first factor was PMSG (pregnant mare serum gonadotrophin) injection with 2 levels (0 IU/kg BW [nonsuperovulation–NSO] and 15 IU/kg BW [Superovulation–SO]). The second factor was zinc concentration in the diet with 3 levels (40 mg/kg DM [Z-40], 60 mg/kg DM [Z-60], and 80 mg/kg DM [Z-80]). Intravaginal sponge (60 mg medroxyprogesterone acetate) was applied for 14 days to synchronize estrus cycle. Twenty four  hours prior to sponge removal, PMSG was injected  to  stimulate superovulation. After  sponge removal,  5 experimental does  were mixed with 1 buck for natural mating. During  pregnancy  the experimental does were fed and  raised in   individual stables. Udder volume  was measured every other week from weeks 12 to 21 of  pregnancy.  During lactation  (one week to  5 months post partum) kids were separated from the does, and   milk was harvested by hand milking. Milk samples were taken every other week for determination of milk quality. The results  indicated that  superovulation increased udder differential growth  by 80% (822.85 vs 1481.25 cm3/head), milk yield by  32% (567.14 vs 746.52 g/head/day).  Zinc concentration  increased udder differential growth and milk yield. Milk productions for does receiving 40, 60 and 80 mg/kg DM were 565.68, 737.88 and 666.92 g/day, respectively.It was concluded that  superovulation and zinc supplementation  increased milk  yield in Etawah Grade does. (Animal Production 6(2): 86-94 (2004) Key Words:  Superovulation, Zinc, Milk  Yield, Etawah-Grade
Co-Authors A Natasasmita A Sudono, A ADRIANI ADRIANI D Sastradipradja D.T.H Sihombing I-W Mathius IK Sutama, IK L.A Sofyan W Manalu