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Ruminal fermentation of Nellore steers fed crude glycerine replacing starch vs. fibre-based energy ingredient in low or high concentrate diets Animal Sciences
Lage, Josiane Fonseca; San Vito, Elias; Reis, Ricardo de Andrade; Delevatti, Lutti Maneck; Pierre, Norman Saint; Berchielli, Telma Teresinha.
Twelve ruminally cannulated steers (401.0 ± 41.5 kg) and 24 mo were used in a replicated arrangement truncated Latin Square with six animals in six treatments and four periods to evaluate the effect of crude glycerine (CG; 80.3% of glycerol) with starch or fiber-based energy ingredients in the concentrate on DMI, DM (DMD) and NDF digestibility (NDFD) and ruminal parameters. Experimental periods were 19 days (14 days for adaptation and 5 days to sampling). Diets were: CO - without CG and corn as ingredient of concentrate; CGC - inclusion of CG (10% of DM) with corn in the concentrate; and CGSH - inclusion of CG (10% of DM) with soybean hulls (SH) in the concentrate. All three diets were offered at low (LC) or high (HC) concentrate level, CL (40 or 60%)....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Avaliação de Alimentos acetate; Glycerol; Propionate; PH; Soybean hulls.
Ano: 2017 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/32895
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Effect of rib fat thickness on the quality of aged meat from Nellore young bulls Animal Sciences
Dallantonia, Erick Escobar; Lage, Josiane Fonseca; Simonetti, Lais Regina; San Vito, Elias; Dellevatti, Lutti Maneck; Berchielli, Telma Teresinha.
This trial aimed to evaluate the quality of aged beef from Nellore young bulls under two yield grade (YG). Fourteen animals with approximately 450 ± 30 kg body weight were evaluated for backfat thickness (BFT) at the beginning of the experimental period. Seven animals had BFT of 0-3 mm and seven animals, 3.1-6 mm. Two groups were formed at the end of the experiment: animals finished with 3-6 mm BFT (seven animals) and animals finished with 6.1 to 10 mm BFT (seven animals). Every 28 days, we evaluated by ultrasound the BFT between the 12nd 13rd ribs. There was no interaction between YG and aging for beef color, pH, cooking losses and shear force (p > 0.05). There was no effect of YG on sarcomere length (p = 0.11). However, there was interaction between...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Zootecnia - Produção Animal aging; Longissimus; Subcutaneous fat..
Ano: 2015 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/25694
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