Electronic Theses and Dissertation

Performa reproduksi merupakan salah satu indikator utama dalam keberhasilan program pembibitan sapi Aceh. Perbedaan sistem manajemen pemeliharaan diduga memengaruhi efisiensi reproduksi, terutama terhadap umur berahi pertama dan calving interval. Penelitian ini bertujuan menganalisis pengaruh perbedaan manajemen pemeliharaan induk betina sapi Aceh produktif terhadap umur berahi pertama dan calving interval di BPTU-HPT Indrapuri Provinsi Aceh. Penelitian menggunakan metode kuantitatif dengan pendekatan observasi komparatif berdasarkan data sekunder catatan reproduksi. Sebanyak 100 ekor induk sapi Aceh dipilih menggunakan teknik purposive sampling, yang terdiri atas 50 ekor pada sistem pemeliharaan intensif dan 50 ekor pada sistem pemeliharaan ekstensif. Data dianalisis secara deskriptif dan dilanjutkan dengan uji Independent Sample t-test pada taraf signifikansi 5%. Hasil penelitian menunjukkan bahwa perbedaan manajemen pemeliharaan berpengaruh sangat nyata (P

Reproductive performance is a critical indicator of the success of Aceh cattle breeding programs. Variations in management systems are considered one of the factors influencing reproductive efficiency, particularly the age at first estrus and calving interval. This study aimed to evaluate the effects of different management systems on the age at first estrus and calving interval of productive Aceh breeding cows at the Indrapuri Beef Cattle Breeding and Forage Center (BPTU-HPT Indrapuri), Aceh Province, Indonesia. A quantitative study employing a comparative observational approach was conducted using secondary reproductive records. A total of 100 productive Aceh breeding cows were selected through purposive sampling, comprising 50 cows managed under an intensive system and 50 cows under an extensive system. The data were analyzed descriptively and subsequently evaluated using an Independent Samples t-test at a significance level of 5%. The results revealed that the management system had a highly significant effect (P < 0.001) on both reproductive parameters. Cows managed under the extensive system reached first estrus at a significantly younger age (18.66 ± 0.717 months) than those managed under the intensive system (24.18 ± 2.601 months). Similarly, the mean calving interval was significantly shorter in the extensive system (13.78 ± 1.093 months) than in the intensive system (18.40 ± 2.515 months). These findings suggest that an extensive management system, supported by well-managed grazing pastures, high-quality forage resources, concentrate supplementation, and environmental conditions that facilitate natural behavioral expression, contributes to improved reproductive efficiency in Aceh breeding cows. Therefore, the extensive management system may represent a more effective management strategy for enhancing reproductive performance while supporting the breeding and conservation of Aceh cattle at BPTU-HPT Indrapuri.