Soy Flour in Milk Replacers for Young Calves
نویسندگان
چکیده
منابع مشابه
Milk Replacers and Bovine Spongiform Encephalopathy in Calves, Japan
infection raise questions about the real pathogenic role of these viruses. As with other polyomaviruses, WUPyV and KIPyV could establish persistent and latent infections with likely asymptomatic reactivations (5), and detection of these viruses could also refl ect a long-term shedding from previous acute episode. Recently published studies have not shown a pathogenic role for these new polyomav...
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The limiting sequence and relative ratio of lysine (Lys), methionine (Met), and threonine (Thr) for calves about 2 mo of age fed milk replacers (MR) containing soy protein are not clearly defined. The objective of the study was to investigate the effect of supplementing MR containing 22% CP, half from soy protein concentrate (SPC, 40.56% CP, flour) and half from whey proteins, with Lys, Met, an...
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Elevated levels of antibiotic resistance genes (ARGs) in soil and water have been linked to livestock farms and in some cases feed antibiotics may select for antibiotic resistant gut microbiota. The purpose of this study was to examine the establishment of ARGs in the feces of calves receiving milk replacer containing no antibiotics versus subtherapeutic or therapeutic doses of tetracycline and...
متن کاملA Comparison of Once-daily and Twice-daily Feeding of Milk Replacers to Dairy Calves
Thirty-two Friesian calves less than one week old were purchased at a country market and fed a milk replacer at two rates, the feed being given as either one or two feeds only. Lucerne hay was available ad libitum from the start of the trial with restricted access to crushed oats after one month. The mean body weights of the once.-daily fed calves were higher than those of the twice-daily fed c...
متن کاملREVIEW: Colostrum supplements and replacers for dairy calves
Colostrum is key in establishing the initial immune protection for the neonatal calf. However, colostrum quality is highly variable between and within farms. Therefore, it can be difficult to ensure the calf receives necessary Ig to thrive. Colostrum supplements and replacers were developed to provide additional Ig or to totally replace maternal colostrum. Data concerning efficacy of colostrum ...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1968
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(68)87100-0