Effects of Bentonite on Weight Gain, Feed Consumption, Blood Metabolites and Ruminal Protozoa in Dairy Calves
Samo za registrovane korisnike
2015
Autori
Kirovski, DanijelaAdamović, M.
Radivojević, Mihajlo
Šamanc, Horea
Vujanac, Ivan
Prodanović, Radiša
Sladojević, Željko
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
In order to ascertain the effects of addition of bentonite as a pelleting medium in the feed mixture for calves, fourteen 30d-old calves were randomly distributed into two equal groups (CON and EXP). From 30 to 120d of age the EXP group was fed a feed mixture containing 1.5% of natural bentonite while the CON group was fed the same pellets without added bentonite. Body weight was determined before and at the end of the trial. Feed intake was measured daily. Health status was monitored daily. Blood and rumen content samples were taken at 50 and 90d of experiment and analyzed for select parameters. The addition of bentonite had no effect (P > 0.05) on average daily gain, feed intake and health. Blood pH, total number and motility of ruminal protozoa in the EXP group were significantly (P < 0.001, P < 0.05 and P < 0.05; respectively) higher than in CON group at both the periods. At 120d of age the EXP calves had a significantly (P < 0.05, P < 0.05 and P < 0.01; respectively) higher serum ...total protein, albumin and triglyceride concentrations and lower iron and IGF-I (P < 0.05 and P < 0.01, respectively) concentrations than respective controls values. It is concluded that the use of pelleted feed containing bentonite tended to improve growth of calves as well as the activity of protozoa in the rumen. Additionally, the results indicate a positive influence of the function of hepatocytes concomitant to a reduction in serum iron and IGF-I concentrations.
Ključne reči:
Bentonite / Blood metabolites / Calves / Ruminal protozoa / Weight gainIzvor:
Animal Nutrition and Feed Technology, 2015, 15, 1, 11-20Izdavač:
- Animal Nutrition Assoc, Izatnagar
Finansiranje / projekti:
- Razvoj tehnologija i proizvoda na bazi mineralnih sirovina i otpadne biomase u cilju zaštite resursa za proizvodnju bezbedne hrane (RS-MESTD-Technological Development (TD or TR)-31003)
- Molekularno-genetička i ekofiziološka istraživanja u zaštiti autohtonih animalnih genetičkih resursa, očuvanju dobrobiti, zdravlja i reprodukcije gajenih životinja i proizvodnji bezbedne hrane (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-46002)
DOI: 10.5958/0974-181X.2015.00002.5
ISSN: 0972-2963
WoS: 000354663700002
Scopus: 2-s2.0-84939542214
Kolekcije
Institucija/grupa
Fakultet veterinarske medicineTY - JOUR AU - Kirovski, Danijela AU - Adamović, M. AU - Radivojević, Mihajlo AU - Šamanc, Horea AU - Vujanac, Ivan AU - Prodanović, Radiša AU - Sladojević, Željko PY - 2015 UR - https://vet-erinar.vet.bg.ac.rs/handle/123456789/1185 AB - In order to ascertain the effects of addition of bentonite as a pelleting medium in the feed mixture for calves, fourteen 30d-old calves were randomly distributed into two equal groups (CON and EXP). From 30 to 120d of age the EXP group was fed a feed mixture containing 1.5% of natural bentonite while the CON group was fed the same pellets without added bentonite. Body weight was determined before and at the end of the trial. Feed intake was measured daily. Health status was monitored daily. Blood and rumen content samples were taken at 50 and 90d of experiment and analyzed for select parameters. The addition of bentonite had no effect (P > 0.05) on average daily gain, feed intake and health. Blood pH, total number and motility of ruminal protozoa in the EXP group were significantly (P < 0.001, P < 0.05 and P < 0.05; respectively) higher than in CON group at both the periods. At 120d of age the EXP calves had a significantly (P < 0.05, P < 0.05 and P < 0.01; respectively) higher serum total protein, albumin and triglyceride concentrations and lower iron and IGF-I (P < 0.05 and P < 0.01, respectively) concentrations than respective controls values. It is concluded that the use of pelleted feed containing bentonite tended to improve growth of calves as well as the activity of protozoa in the rumen. Additionally, the results indicate a positive influence of the function of hepatocytes concomitant to a reduction in serum iron and IGF-I concentrations. PB - Animal Nutrition Assoc, Izatnagar T2 - Animal Nutrition and Feed Technology T1 - Effects of Bentonite on Weight Gain, Feed Consumption, Blood Metabolites and Ruminal Protozoa in Dairy Calves VL - 15 IS - 1 SP - 11 EP - 20 DO - 10.5958/0974-181X.2015.00002.5 ER -
@article{ author = "Kirovski, Danijela and Adamović, M. and Radivojević, Mihajlo and Šamanc, Horea and Vujanac, Ivan and Prodanović, Radiša and Sladojević, Željko", year = "2015", abstract = "In order to ascertain the effects of addition of bentonite as a pelleting medium in the feed mixture for calves, fourteen 30d-old calves were randomly distributed into two equal groups (CON and EXP). From 30 to 120d of age the EXP group was fed a feed mixture containing 1.5% of natural bentonite while the CON group was fed the same pellets without added bentonite. Body weight was determined before and at the end of the trial. Feed intake was measured daily. Health status was monitored daily. Blood and rumen content samples were taken at 50 and 90d of experiment and analyzed for select parameters. The addition of bentonite had no effect (P > 0.05) on average daily gain, feed intake and health. Blood pH, total number and motility of ruminal protozoa in the EXP group were significantly (P < 0.001, P < 0.05 and P < 0.05; respectively) higher than in CON group at both the periods. At 120d of age the EXP calves had a significantly (P < 0.05, P < 0.05 and P < 0.01; respectively) higher serum total protein, albumin and triglyceride concentrations and lower iron and IGF-I (P < 0.05 and P < 0.01, respectively) concentrations than respective controls values. It is concluded that the use of pelleted feed containing bentonite tended to improve growth of calves as well as the activity of protozoa in the rumen. Additionally, the results indicate a positive influence of the function of hepatocytes concomitant to a reduction in serum iron and IGF-I concentrations.", publisher = "Animal Nutrition Assoc, Izatnagar", journal = "Animal Nutrition and Feed Technology", title = "Effects of Bentonite on Weight Gain, Feed Consumption, Blood Metabolites and Ruminal Protozoa in Dairy Calves", volume = "15", number = "1", pages = "11-20", doi = "10.5958/0974-181X.2015.00002.5" }
Kirovski, D., Adamović, M., Radivojević, M., Šamanc, H., Vujanac, I., Prodanović, R.,& Sladojević, Ž.. (2015). Effects of Bentonite on Weight Gain, Feed Consumption, Blood Metabolites and Ruminal Protozoa in Dairy Calves. in Animal Nutrition and Feed Technology Animal Nutrition Assoc, Izatnagar., 15(1), 11-20. https://doi.org/10.5958/0974-181X.2015.00002.5
Kirovski D, Adamović M, Radivojević M, Šamanc H, Vujanac I, Prodanović R, Sladojević Ž. Effects of Bentonite on Weight Gain, Feed Consumption, Blood Metabolites and Ruminal Protozoa in Dairy Calves. in Animal Nutrition and Feed Technology. 2015;15(1):11-20. doi:10.5958/0974-181X.2015.00002.5 .
Kirovski, Danijela, Adamović, M., Radivojević, Mihajlo, Šamanc, Horea, Vujanac, Ivan, Prodanović, Radiša, Sladojević, Željko, "Effects of Bentonite on Weight Gain, Feed Consumption, Blood Metabolites and Ruminal Protozoa in Dairy Calves" in Animal Nutrition and Feed Technology, 15, no. 1 (2015):11-20, https://doi.org/10.5958/0974-181X.2015.00002.5 . .