Article Per Year (5 Year)
p-Index From 2019 - 2024
0
P-Index
This Author published in this journals
All Journal Journal of the Indonesian Tropical Animal Agriculture
A. Adiarto
Department of Animal Production, Faculty of Animal Science, Gadjah Mada University, Jl. Fauna No. 3, Bulaksumur, Yogyakarta 55281
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search
Journal : Journal of the Indonesian Tropical Animal Agriculture

 1 
PROFITABILITY OF SMALLHOLDER DAIRY FARMS BASED ON THE PERFORMANCE OF LACTATING COWS AND FRESH MILK MARKET PRICES AT LOWLAND AREAS OF YOGYAKARTA Widiati, R.; Adiarto, A.; Hertanto, B.S.
Journal of the Indonesian Tropical Animal Agriculture Vol 37, No 2 (2012): (June)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.37.2.132-138

Abstract

This study was aimed to determine the profitability of smallholder dairy farmers at the lowlandareas of Yogyakarta related to dairy cow performance (milk production) to be achieved at various freshmilk market prices. Thirty lactating Holstein cows belonging to the 16 farmers at the lowland areas ofYogyakarta Province selling milk directly to the consumers were drawn as the samples. Profitability wasdetermined by enterprise budgeting (accounting profit and economic profit) and break even point. Inputand output data were obtained from interview with the farmer samples along with direct observations onthe cows performance. The results indicated that under the observed condition of 9.28 liter/day averagemilk production at IDR 4,700 market price, the accounting profit was found to be IDR7,758,862/lactating cow/year. The farmers were able to make an economic profit of IDR 1,839,875 withprofit margin index of 0.12. If the farmers have to sell the fresh milk to the Cooperatives at the price ofIDR 2.800 or IDR 3.200/liter, in order to gain a positive economic profit, milk production must be atleast 13.5 or 12.0 liters/day, respectively.
ASSOCIATIONS BETWEEN POLYMORPHISM OF GROWTH HORMONE GENE WITH MILK PRODUCTION, FAT AND PROTEIN CONTENT IN FRIESIAN HOLSTEIN CATTLE Hartatik, T.; Kurniawati, D.; Adiarto, A.
Journal of the Indonesian Tropical Animal Agriculture Vol 40, No 3 (2015): September
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.40.3.133-137

Abstract

The aim of the research was to determine the associations between polymorphism of the bovine growth hormone (GH) gene (Leu/Val) and milk production of Friesian Holstein Cattle. A total of 62 cows which consist of two Friesian Holstein cattle groups (from New Zealand=19 heads and Australia=43 heads) were used for the research. We performed the Polymerase Chain Reaction and followed by Restriction Fragment Length Polymorphism using AluI restriction enzyme. The genotype was observed base on the target gene GH 211 bp in the part of intron 4 and exon 5 of growth hormone gene. The frequencies of genotypes LL were found higher than genotype LV in both groups. Friesian Holstein cattle from New Zealand showed the genotype LL and LV as 84% and 16%, respectively. Friesian Holstein cattle from Australia show the genotype LL and LV as 79% and 21%, respectively. The association between Leu/Val polymorphism on milk production, fat and protein content in both groups did not show the significant effect. Base on two groups of the origin of cattle, the result showed the significant different on fat and protein content of milk. Fat and protein contents of milk were higher in breed of FH imported from Australia compared to those in breed of FH imported from New Zailand.
THE IMPACT OF BALANCED ENERGY AND PROTEIN SUPPLEMENTATION TO MILK PRODUCTION AND QUALITY IN EARLY LACTATING DAIRY COWS Widyobroto, W. P.; Rochijan, R.; Ismaya, I.; Adiarto, A.; Suranindyah, Y. Y.
Journal of the Indonesian Tropical Animal Agriculture Vol 41, No 2 (2016): June
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.41.2.83-90

Abstract

This research was aimed to determine the impact of balanced energy and protein supplementation with high rumen undegraded protein (HRUP) to milk production and quality in early lactating dairy cows. Twelve early lactating Friesian Holstein cows were divided into two groups (control and HRUP). Both control and HRUP group were fed on a basal diet (forage to concentrate ratio was 60:40; DM basis), with rumen undegraded protein (RUP) levels were 27.47% and 32.78% for control and HRUP, respectively. The experimental diets were given to animals twice daily, morning and afternoon. Water was given by ad libitum. The observed parameters were nutrient intake, quantity and quality of milk production . Data were examined using t-test. Results showed that feed intake, milk production and 4% FCM, milk fat and lactose concentrations, and milk solid non-fat and total solid concentrations were not differed significantly between control and HRUP groups. However, milk protein concentration and production were differed (P
Co-Authors B.S. Hertanto D. Kurniawati, D. I. Ismaya R. Widiati Rochijan Rochijan T. Hartatik W. P. Widyobroto, W. P. Y. Y. Suranindyah, Y. Y.