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Estrous and pregnancy rate responses of postpartum Bali cattle to concentrate supplementation with different protein levels of rice-straw as basal ration
Herry Sonjaya1*, Lellah Rahim1, Dwi Kesuma Sari2, Agustina Abdullah3, Sri Gustina4, and Hasbi Hasbi1*

*Corresponding Author: Herry Sonjaya, E-mail: sonjayaherry[at]gmail.com, Hasbi Hasbi
E-mail: hasbi_fapetunhas[at]yahoo.com
1Department of Animal Production, Faculty of Animal Science, Hasanuddin University, Makassar 90245, Indonesia. 2Program Study of Veterinary Medicine, Faculty of Medical, Hasanuddin University, Makassar 90245, Indonesia. 3Department of Socioeconomic, Faculty of Animal Science, Hasanuddin University, Makassar 90245, Indonesia. 4Division of Animal Science, Faculty of Animal Science and Fisheries, Sulawesi Barat University, Majene 91412, Indonesia.


Abstract

ABSTRACT Objective: The aim of the research is to determine the effect of concentrate with different protein level rice straw as basal ration on the percentage of pregnancy rate of Bali cattle maintained on traditional farming system Methods. The research was divided into two experiments. First experiment: a number of 46 cows divided into 4 treatment groups. Each group respectively protein level 0%, 10%, 12%, and 14%. Experiment 2: a number of 324 Bali cows postpartum got concentrate supplementation with different protein levels were divided into three groups, each got a protein level of 10%; 12%, and 14%. The rice straw diet given ad-libitum and concentrate as much as 1 kg per head per day for two months. Livestock that appears estrous after feeding directly mated naturally and partially performed artificial insemination. Pregnancy examinations carried rectal palpation and partly validated with ultrasound. Results: Estrous respon in the first experiment not significantly affected by supplementation of concentrate with protein level for 10-14%. In contrast, estrous intensity was obviously visible in group treatment with 14% protein level. The supplementation of protein level in concentrate increased natural estrous 66.05% and natural mating generated 91.65% of pregnancy rate. However, 43.95% cows were artificially inseminated generating 81.63% of pregnancy rate.It-s conclude that upplementation of concentrate for feed Bali cows with rice straw as basal in the dry season caused increasing the percentage of postpartum estrous and highest of pregnancy rate.

Keywords: Keywords: Bali Cows Postpartum, Estrous Response, Pregnancy Rate, Concentrate, Protein Supplements

Topic: Animal reproduction

Link: https://ifory.id/abstract/NKvHf2atBMbj

Conference: The 2nd Iternational Conference of Animal Science and Technology (ICAST 2019)

Plain Format | Corresponding Author (Herry Sonjaya)

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