| تعداد نشریات | 24 |
| تعداد شمارهها | 912 |
| تعداد مقالات | 8,158 |
| تعداد مشاهده مقاله | 15,836,142 |
| تعداد دریافت فایل اصل مقاله | 13,332,055 |
Milk yield depression and its economic loss due to production diseases: Iran’s large dairy herds | ||
| Iranian Journal of Veterinary Research | ||
| دوره 22، شماره 2 - شماره پیاپی 75، 2021، صفحه 136-139 اصل مقاله (192.99 K) | ||
| نوع مقاله: Short paper | ||
| شناسه دیجیتال (DOI): 10.22099/ijvr.2021.38463.5596 | ||
| نویسندگان | ||
| A. Nikkhah* 1؛ A. RezaGholivand2؛ M. H. Khabbazan1 | ||
| 1Ferdows Pars Agricultural and Livestock Holding Co., Tehran, Iran | ||
| 2Ferdows Pars Agricultural and Livestock Holding Co., Tehran, Iran; Magsal Dairy Husbandry and Agriculture Co., Qazvin, Iran | ||
| چکیده | ||
| Background: Incidences of production and metabolic diseases in dairy cows have increased over the last few decades because of the increasing trends in milk production. Production diseases cause different and distinct depressions in milk production that lead to different and major economic losses in large dairy herds. Aims: The objective of this study was to determine milk production depression and its economic losses due to different production diseases in selected large dairy herds of Iran. Methods: Production and health data from 17 large dairy herds with a total of 146464 observations across three parities were obtained. Milk yield depressions were estimated for three phases of lactation including 1) 5-60, 2) 61-120, and 3) 121-180 days in milk. Data were analyzed using Mixed Models of SAS program (v. 9.3) with fixed effects of the diseases, calving year, calving month, parity, and herd with cow age at calving as covariates. Results: The data demonstrated significant effects of different production diseases on milk production depression during 5-60, 61-120, and 121-180 days in milk (P<0.05). During 5-60 days in milk, ketosis, displaced abomasums (DAs), laminitis, mastitis, metritis, retained placenta (RP), and dystocia resulted in, respectively, 253, 682, 39, 38, 110, 215, and 55 kg of milk yield depressions that were equivalent to 38.5, 103.7, 6.0, 5.8, 16.7, 32.6, and 8.4 U.S. Dollars (USD) economic losses. Milk yield depressions due to laminitis and mastitis over the 180 days in milk were, respectively, 207 and 404 kg equivalent to 31.5 and 63.0 USD economic losses. Since the milk yield depression constitutes about 20-35% of total costs of production and metabolic disorders, the total economic losses would be 3-5 times the above values. Conclusion: Displaced abomasum and laminitis caused the highest and lowest depressions in milk yield, respectively. The findings suggest that commercial dairy production management strategies in Iran require reassessment and refinement. Overfeeding of concentrates should be ceased. Future economic and reproductive studies are needed to enable developing effective strategies for optimizing modern and postmodern dairy production in Iran. | ||
| کلیدواژهها | ||
| Dairy herd؛ Economic loss؛ Milk yield depression؛ Production disease | ||
| مراجع | ||
|
Ansari-Lari, M; Mohebbi-Fani, M and Rowshan-Ghasrodashti, A (2012). Causes of culling in dairy cows and its relation to age at culling and interval from calving in Shiraz, Southern Iran. Vet. Res. Forum. 3: 233-237.
Banga, CB; Neser, FWC and Garrick, DJ (2014). The economic value of somatic cell count in South African Holstein and Jersey cattle. South Afric. J. Anim. Sci., 44: 173-177.
Chegini, A; Ghavi Hossein-Zadeh, N; Hosseini-Moghadam, H and Shadparvar, AA (2016). Factors affecting clinical mastitis and effects of clinical mastitis on reproductive performance of Holstein cows. Revue Méd. Vét., 167: 145-153.
Ghavi Hossein-Zadeh, N (2014). Effect of dystocia on the productive performance and calf stillbirth in Iranian Holsteins. J. Agr. Sci. Tech., 16: 69-78.
Gohary, Kh; Overton, MW; Von Massow, M; LeBlanc, SJ; Lissemore, KD and Duffield, TF (2016). The cost of a case of subclinical ketosis in Canadian dairy herds. Can. Vet. J., 57: 728-732.
Klein Haneveld, J (2013). Gevolgen van ketose niet onderschatten. Veehouder Veearts. Mahnani, A; Sadeghi-Sefidmazgi, A and Cabrera, VE (2015). Consequences and economics of metritis in Iranian Holstein dairy farms. J. Dairy Sci., 98: 6048-6057. Mohammadi, GR and Sedighi, A (2009). Reasons for culling of Holstein dairy cows in Neishaboor area in northeastern Iran. Iran. J. Vet. Res., 10: 278-282.
Mostert, PF; Bokkers, EAM; van Middelaar, CE; Hogeveen, H and de Boer, IJM (2018). Estimating the economic impact of subclinical ketosis in dairy cattle using a dynamic stochastic simulation model. Animal. 12: 145-154.
Ózsvári, L (2017). Economic cost of lameness in dairy cattle herds. J. Dairy Vet. Anim. Res., 6: 283-289.
Raboisson, D; Mounie, M; Khenifar, E and Maiqne, E (2015). The economic impact of subclinical ketosis at the farm level: Tackling the challenge of over-estimation due to multiple interactions. Prev. Met. Med., 122: 417-425.
Rezagholivand Lahrud, A; Moradi Shahrbabak, M; Mokhtari, MS and Moradi Shahrbabak, H (2018a). Causal effect from retained placenta on metritis in Iranian Holstein breed cows. The Annual Congress of Iranian Animal Science Association, September, 2018, University of Kordestan, Sanandaj, Iran.
Rezagholivand Lahrud, A; Moradi Shahrbabak, M; Moradi Shahrbabak, H and Mokhtari, MS (2018b). Risk factors associated with metritis in Iranian Holstein dairy cows A. The 2nd National Conference on Advanced Research in Animal Science. April 11-12, 2018, University of Birjand.
Seifi, HA and Kia, S (2018). Subclinical hypocalcemia in dairy cows: Pathophysiology, consequences and monitoring. Iran. J. Vet. Sci. Technol., 9: 1-15.
Senthilkumar, V; Mohamed Safiullah, A; Kathiravan, G; Subramanian, M and Mani, K (2013). Economic analysis of metabolic diseases in bovines: A review. Int. J. Adv. Vet. Sci. Technol., 2: 64-71. Senthilkumar, V; Mohamed Safiullah, A; Kathiravan, G; Subramanian, M and Mani, K (2015). Economic losses due to ketosis in dairy farms. Ind. J. Vet. Anim. Sci. Res., 44: 102-104.
Thirunavukkarasu, M; Kathiravan, G; Kalaikannan, A and Jebarani, W (2010). Quantifying economic losses due to milk fever in dairy farms. Agric. Econom. Res. Rev., 23: 77-81.
VanLaarhoven, W (2012). Bedrijfseconomische aspecten van pens verzuring. Valacon-Dairy. | ||
|
آمار تعداد مشاهده مقاله: 1,370 تعداد دریافت فایل اصل مقاله: 818 |
||