Veterinarski arhiv, Vol. 92 No. 3, 2022.
Izvorni znanstveni članak
https://doi.org/10.24099/vet. arhiv.1377
Povezanost negativne energetske bilance (NEB) s energetskim metabolizmom, proizvodnjom mlijeka i reprodukcijskom sposobnošću mliječnih krava tijekom rane laktacije u pokrajini Heilongjiang, Kina
Zhijie Wang
; College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University; Heilongjiang Provincial Technology Innovation Center for Bovine Disease Control and Prevention; Heilongjiang Provincial Key Laboratory of Prevention and Control of Bovine Diseases; Heilongjiang Province Cultivating Collaborative Innovation Center for The Beidahuang Modern Agricultural Industry Technology. Daqing, China
Yuxi Song
; College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University; Heilongjiang Provincial Technology Innovation Center for Bovine Disease Control and Prevention; Heilongjiang Provincial Key Laboratory of Prevention and Control of Bovine Diseases; Heilongjiang Province Cultivating Collaborative Innovation Center for The Beidahuang Modern Agricultural Industry Technology. Daqing, China
Chang Zhao
; College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University; Heilongjiang Provincial Technology Innovation Center for Bovine Disease Control and Prevention; Heilongjiang Provincial Key Laboratory of Prevention and Control of Bovine Diseases; Heilongjiang Province Cultivating Collaborative Innovation Center for The Beidahuang Modern Agricultural Industry Technology. Daqing, China
Yunlong Bai
; College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University; Heilongjiang Provincial Technology Innovation Center for Bovine Disease Control and Prevention; Heilongjiang Provincial Key Laboratory of Prevention and Control of Bovine Diseases; Heilongjiang Province Cultivating Collaborative Innovation Center for The Beidahuang Modern Agricultural Industry Technology. Daqing, China
Feng Zhang
; College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University; Heilongjiang Provincial Technology Innovation Center for Bovine Disease Control and Prevention; Heilongjiang Provincial Key Laboratory of Prevention and Control of Bovine Diseases; Heilongjiang Province Cultivating Collaborative Innovation Center for The Beidahuang Modern Agricultural Industry Technology. Daqing, China
Cheng Xia
; College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University; Heilongjiang Provincial Technology Innovation Center for Bovine Disease Control and Prevention; Heilongjiang Provincial Key Laboratory of Prevention and Control of Bovine Diseases; Heilongjiang Province Cultivating Collaborative Innovation Center for The Beidahuang Modern Agricultural Industry Technology. Daqing, China
Shixin Fu
; College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University; Heilongjiang Provincial Technology Innovation Center for Bovine Disease Control and Prevention; Heilongjiang Provincial Key Laboratory of Prevention and Control of Bovine Diseases; Heilongjiang Province Cultivating Collaborative Innovation Center for The Beidahuang Modern Agricultural Industry Technology. Daqing, China
Hongyou Zhang
; College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University; Heilongjiang Provincial Technology Innovation Center for Bovine Disease Control and Prevention; Heilongjiang Provincial Key Laboratory of Prevention and Control of Bovine Diseases; Heilongjiang Province Cultivating Collaborative Innovation Center for The Beidahuang Modern Agricultural Industry Technology. Daqing, China
Chuang Xu
; College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University; Heilongjiang Provincial Technology Innovation Center for Bovine Disease Control and Prevention; Heilongjiang Provincial Key Laboratory of Prevention and Control of Bovine Diseases; Heilongjiang Province Cultivating Collaborative Innovation Center for The Beidahuang Modern Agricultural Industry Technology. Daqing, China
Ling Wu
; College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University; Heilongjiang Provincial Technology Innovation Center for Bovine Disease Control and Prevention; Heilongjiang Provincial Key Laboratory of Prevention and Control of Bovine Diseases; Heilongjiang Province Cultivating Collaborative Innovation Center for The Beidahuang Modern Agricultural Industry Technology. Daqing, China
Sažetak
Negativna energetska bilanca (NEB) uzrokuje ekonomske gubitke na farmama za proizvodnju mlijeka diljem svijeta. Cilj ovog rada bio je istražiti utjecaj NEB-e na energetski metabolizam i reprodukciju tijekom rane laktacije krava na farmama za intenzivnu proizvodnju mlijeka pokrajine Heilongjiangu, u Kini. Uzimajući u obzir razine β-hidroksibutrične kiseline (BHBA), glukoze (GLU) i neesterificiranih masnih kiselina (NEFA) te kliničke manifestacije 14-21 dan nakon porođaja, 118 krava podijeljeno je u skupinu s PEB (pozitivna energetska bilanca; BHBA<1,2, GLU>2,8, NEFA<0,7 mmol/l; n=67) i skupinu s NEB (negativna energetska bilanca; BHBA>1,2, GLU<2,8, NEFA>0,7 mmol/L; n=51). Navedeni pokazatelji analizirani su kombinacijom metoda presječnog
istraživanja, Pearson-ovog koeficijenta korelacije i prospektivnog kohortnog istraživanja. Rezultati su pokazali da je 14-21 dan nakon porođaja skupina NEB u usporedbi sa skupinom PEB imala višu ocjenu tjelesne kondicije, veći gubitak tjelesne kondicije (BCL), te veće vrijednosti za dušik iz ureje mlijeka, BHBA, NEFA, interval od teljenja do prvog estrusa (ICFE), graviditete po umjetnoj oplodnji (P/AI) i interval između teljenja (P<0,05), a niže vrijednosti zadnevnu proizvodnju mlijeka (DL), mliječni protein, GLU, stopu pojave estrusa i stopu koncepcije. Gubitak tjelesne kondicije (BCL) je bio pozitivno povezan s ICFE i P/AI (P<0,05) i negativno povezan sa stopom pojave estrusa te stopom koncepcije (P<0,05). Dnevna proizvodnja mlijeka (DL) pokazala je negativnu povezanost s P/AI (P<0,05). Uočena je pozitivna povezanost NEB-a i anestrusa (2M-H = 12,63, P = 0,0004), a rizik od anestrusa uzrokovanih NEB povećan je 3,67 puta u odnosu na PEB. Zaključci su pokazali da je NEB usko povezan s BCL, što je čimbenik koji utječe na snižavanje proizvodnje mlijeka i reprodukciju mliječnih krava. Osim toga, NEB se pokazao i kao čimbenik rizika za anestrus u mliječnih krava.
Ključne riječi
mliječna krava; negativna energetska bilanca; rana laktacija; reprodukcijski pokazatelji
Hrčak ID:
280985
URI
Datum izdavanja:
17.7.2022.
Posjeta: 514 *