Araştırma Makalesi

Estimation of enteric and manure-derived methane emissions in sheep and goats in Ankara Province

Cilt: 14 Sayı: 2 10 Aralık 2025
  • Mesut Yıldırır *
  • Ahsen Ertem
  • Mehmet Fikret Yıldırım
  • Emre Karmaz
  • Veysi Dinçel
  • Engin Ünay
  • Muhammet İkbal Coşkun
  • Selen Beder
  • Ramazan Sevgi
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EN

Estimation of enteric and manure-derived methane emissions in sheep and goats in Ankara Province

Öz

Since livestock account for most of Türkiye’s agricultural greenhouse gas emissions, strategies for estimating livestock emissions must be developed. Methane emissions per animal category were estimated in this study using the Intergovernmental Panel on Climate Change (IPCC) Tier 2 method for enteric and manure methane (CH4) emissions in two sheep breeds (Akkaraman and Anatolian Merino) and three goat breeds (Hairy, Angora, Saanen) raised in Ankara province, Türkiye. Average enteric CH4 emission factor (EF) was 9.61 kg CH4 head-1 yr-1, with the highest value of 10.86 kg CH4 head-1 yr-1 in Hairy goats, and lowest 8.55 kg CH4 head-1 yr-1 in Anatolian Merino. Estimated gross energy (GE) was highest in Hairy goats (30.10 MJ head-1 day-1), and lowest in Anatolian Merino (21.73 MJ head-1 day-1). Average dry matter intake (DMI) was 1.40 kg DM head-1 day-1. The total average volatile solids (VS) excretion was estimated at 0.95 kg DM head-1 yr-1, and the average methane emission factor (EF) for animal manure was 0.46 kg CH4 head-1 yr-1. Total mean VS estimate was twice as much as the IPCC default values, and the CH4 EF for animal manure was higher than the IPCC default values. The current study's estimates will be helpful in the creation of the national methane inventory. In case more detailed data are collected to improve population data, subcategories may be expanded, and subgroups may vary by region.

Anahtar Kelimeler

Kaynakça

  1. Aguilera, J. F., & Molina-Alcaide, E. (2021). Enteric methane production in adult sheep of the Segureña breed fed diets containing alkali-treated olive cake. Small Ruminant Research, 194, 106295. https://doi.org/10.1016/j.smallrumres.2020.106295
  2. Aktaş, Z., Kaygısız, A., & Sinan, B. A. Ş. (2012). Kahramanmaraş yetiştirici şartlarında Türk Saanen keçilerinin süt verim özellikleri, bazı meme ölçüleri ve SHS arasındaki ilişkiler. KSÜ Doğa Bilimleri Dergisi, 15(4), 7-17.
  3. Aktaş, A. H., Dursun, Ş., Halıcı, İ., Demirci, U., Akil, K., & Büyükbaş, L. (2016). Orta Anadolu merinosu koyunların yetiştirici şartlarındaki ergin canlı ağırlıkları ve bazı döl verimi özellikleri. Tekirdağ Ziraat Fakültesi Dergisi, 13(3).
  4. Altın, T. (2001). Koyunlarda süt veriminin laktasyon boyunca değişimi ve farklı yöntemlere göre tahmin edilmesi. Yuzuncu Yıl University Journal of Agricultural Sciences, 11(2), 1-7.
  5. Arslan, O., & Bağdatlı. M.C. (2021). Ankara ili içme suy kalite parametrelerinin coğrafi bilgi sistemleri (CBS) ortamında farklı enterpolasyon yöntemleri kullanılarak modellenmesi. Master’s thesis, Nevşehir Hacı Bektaş Veli Universitesi.
  6. Aşkan, R., & Aygün, T., (2020). Determination of milk yield traits and some components of milk in Akkaraman crossbred ewes maintained at rural conditions, J. Anim. Prod.,61 (1), 23-31, https://doi.org/10.29185/hayuretim.683693
  7. Bell, M. J., Eckard, R. J., & Cullen, B. R. (2012). The effect of future climate scenarios on the balance between productivity and greenhouse gas emissions from sheep grazing systems. Livestock Science, 147(1-3), 126-138. https://doi.org/10.1016/j.livsci.2012.04.012
  8. Bhatt, R. S., Sahoo, A., Sarkar, S., Saxena, V. K., Soni, L., Sharma, P., & Gadekar, Y. (2021). Dietary inclusion of nonconventional roughages for lowering enteric methane production and augmenting nutraceutical value of meat in cull sheep. Animal Feed Science and Technology, 273, 114832. https://doi.org/10.1016/j.anifeedsci.2021.114832

Ayrıntılar

Birincil Dil

İngilizce

Konular

Ziraat Mühendisliği (Diğer)

Bölüm

Araştırma Makalesi

Yazarlar

Mehmet Fikret Yıldırım Bu kişi benim
0009-0000-4650-3728
Türkiye

Emre Karmaz Bu kişi benim
Türkiye

Engin Ünay Bu kişi benim
Türkiye

Muhammet İkbal Coşkun Bu kişi benim
Türkiye

Selen Beder Bu kişi benim
Türkiye

Ramazan Sevgi Bu kişi benim
Türkiye

Yayımlanma Tarihi

10 Aralık 2025

Gönderilme Tarihi

30 Mayıs 2025

Kabul Tarihi

2 Aralık 2025

Yayımlandığı Sayı

Yıl 2025 Cilt: 14 Sayı: 2

Kaynak Göster

APA
Yıldırır, M., Ertem, A., Yıldırım, M. F., Karmaz, E., Dinçel V., Ünay E., Coşkun M. I., Beder, S., & Sevgi, R. (2025). Estimation of enteric and manure-derived methane emissions in sheep and goats in Ankara Province. Soil Studies, 14(2), 114-120. https://doi.org/10.21657/soilst.1839489
AMA
1.Yıldırır M, Ertem A, Yıldırım MF, vd. Estimation of enteric and manure-derived methane emissions in sheep and goats in Ankara Province. SoilSt. 2025;14(2):114-120. doi:10.21657/soilst.1839489
Chicago
Yıldırır, Mesut, Ahsen Ertem, Mehmet Fikret Yıldırım, vd. 2025. “Estimation of enteric and manure-derived methane emissions in sheep and goats in Ankara Province”. Soil Studies 14 (2): 114-20. https://doi.org/10.21657/soilst.1839489.
EndNote
Yıldırır M, Ertem A, Yıldırım MF, Karmaz E, Dinçel V, Ünay E, Coşkun MI, Beder S, Sevgi R (01 Aralık 2025) Estimation of enteric and manure-derived methane emissions in sheep and goats in Ankara Province. Soil Studies 14 2 114–120.
IEEE
[1]M. Yıldırır vd., “Estimation of enteric and manure-derived methane emissions in sheep and goats in Ankara Province”, SoilSt, c. 14, sy 2, ss. 114–120, Ara. 2025, doi: 10.21657/soilst.1839489.
ISNAD
Yıldırır, Mesut - Ertem, Ahsen - Yıldırım, Mehmet Fikret - Karmaz, Emre - Dinçel Veysi - Ünay Engin - Coşkun Muhammet İkbal - Beder, Selen - Sevgi, Ramazan. “Estimation of enteric and manure-derived methane emissions in sheep and goats in Ankara Province”. Soil Studies 14/2 (01 Aralık 2025): 114-120. https://doi.org/10.21657/soilst.1839489.
JAMA
1.Yıldırır M, Ertem A, Yıldırım MF, Karmaz E, Dinçel V, Ünay E, Coşkun MI, Beder S, Sevgi R. Estimation of enteric and manure-derived methane emissions in sheep and goats in Ankara Province. SoilSt. 2025;14:114–120.
MLA
Yıldırır, Mesut, vd. “Estimation of enteric and manure-derived methane emissions in sheep and goats in Ankara Province”. Soil Studies, c. 14, sy 2, Aralık 2025, ss. 114-20, doi:10.21657/soilst.1839489.
Vancouver
1.Mesut Yıldırır, Ahsen Ertem, Mehmet Fikret Yıldırım, Emre Karmaz, Veysi Dinçel, Engin Ünay, Muhammet İkbal Coşkun, Selen Beder, Ramazan Sevgi. Estimation of enteric and manure-derived methane emissions in sheep and goats in Ankara Province. SoilSt. 01 Aralık 2025;14(2):114-20. doi:10.21657/soilst.1839489