scholarly journals Effects of extruding wheat dried distillers grains with solubles with peas or canola meal on ruminal fermentation, microbial protein synthesis, nutrient digestion, and milk production in dairy cows

2016 ◽  
Vol 99 (9) ◽  
pp. 7143-7158
Author(s):  
R.M. Claassen ◽  
D.A. Christensen ◽  
T. Mutsvangwa
Keyword(s):  
Protein Synthesis ◽  
Dairy Cows ◽  
Milk Production ◽  
Distillers Grains ◽  
Canola Meal ◽  
Ruminal Fermentation ◽  
Microbial Protein ◽  
Microbial Protein Synthesis ◽  
Distillers Grains With Solubles ◽  
Dried Distillers Grains

scholarly journals EFFECT OF FEEDING CORN DRIED DISTILLERS GRAINS WITH SOLUBLES (DDGS) ON MILK PRODUCTION OF COW UNDER HOT CLIMATE CONDITION

2013 ◽  
Vol 14 (2) ◽  
pp. 63
Author(s):  
Budi Tangendjaja
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Control Diet ◽  
Total Solid ◽  
Fat Content ◽  
Distillers Grains ◽  
Climate Condition ◽  
Distillers Grains With Solubles ◽  
Dried Distillers Grains ◽  
Hot Climate

Dried distillers grains with solubles (DDGS) is a co-product of ethanol industry made from grains through fermentation process and it can be used for animal feeding especially for dairy cows. A feeding trial on US corn DDGS was conducted at commercial dairy farm in Vietnam during hot condition in 2010. One hundred and fifty six dairy cows in a later stage of milk production were allotted randomly in three groups of 52 cows with similar milk production. Three dietary treatments offered comprised control diet, diet with 7.5% DDGS and diet with 15% DDGS. The diets were formulated to contain similar nutrient profiles and comprised forages (corn, elephant grass and alfalfa hay), brewery waste, soybean curd waste, corn, soybean meal, molasses and commercial dairy supplement. The diet was manufactured locally in total mixed ration system and delivered two times per day. Milk production, feed consump-tion and milk quality were measured for 5 days before the trial and 45 days after the trial. The result demonstrated that feeding DDGS could support higher milk production without affecting feed consumption. Feeding DDGS at 7.5% and 15% resulted in higher milk production of 2 and 4 kg per day respectively compared to cows fed control diet. Feed intake remained unaffected at around 35 kg per day. Milk quality as measured by total solid and fat content was similar in cows fed the control diet and DDGS at 7.5%. Feeding DDGS at 15% tended to have slightly better total solid and fat content. Feeding DDGS was able to reduce cost of the diets; diet cost for control, DDGS 7.5% and DDGS 15% were VND 2537, 2460 and 2399 per kg, respectively. It is concluded that DDGS can be economically used for feeding dairy cows in hot climate condition and improving milk production. <br />

scholarly journals Ruminal Ecology, Microbial Protein Synthesis and Milk Production in Lactating Dairy Cows Fed Glycerin-Based Diet: A Comparison Study on Chitosan Sources Supplementation

2020 ◽  
Author(s):  
Anuthida Seankamsorn ◽  
Anusorn Cherdthong ◽  
Sarong So ◽  
Metha Wanapat
Keyword(s):  
Protein Synthesis ◽  
Dairy Cows ◽  
Milk Production ◽  
Dry Matter ◽  
Nutrient Digestibility ◽  
Control Group ◽  
Microbial Protein ◽  
Microbial Protein Synthesis ◽  
Lactating Dairy Cows ◽  
Different Sources

The study compared the influence of chitosan sources on rumen fermentation, methane emission and milk production in lactating dairy cows fed a glycerin-based diet. Six, lactating Holstein-Frisian crossbreeds (410 &plusmn; 5.0 kg BW, 120 &plusmn; 21 day-in-milk), were arranged in a 3 x 3 replicated Latin square design. In addition to control, a 2% chitosan extract supplement and a 2% commercial chitosan supplement of dry matter intake were the treatments. The results denoted that no significant differences on daily dry matter, nutrients or estimated energy intake were noted when cows received different sources of chitosan. Nutrient digestibility was not influenced differently by extraction based or commercial chitosan supplements. The pH, temperature, ammonia nitrogen, blood urea and microbial count were similar among treatments. The different sources of chitosan supplements did not change the totals of volatile fatty acids, acetate and butyrate; in contrast, different chitosan sources influenced (P&lt;0.05) propionate content. The ruminal acetate to propionate ratio was markedly (P&lt;0.05) reduced with chitosan supplement, but no change appeared between sources of chitosan. At 4 hours after feeding, the methane estimation significantly decreased with the addition of chitosan supplementation (P&lt;0.05) compared to the control group. The purine derivatives and microbial protein synthesis were not altered by the treatments. No significant differences existed on milk yield, milk composition or milk urea nitrogen when cows received different sources of chitosan (P&gt;0.05). In sum, supplementing extracted chitosan showed more potential than did commercial chitosan for enhancing economic efficiency and recycling shrimp residues, therefore, reducing environmental waste.

scholarly journals Black Wattle (Acacia mearnsii) Condensed Tannins as Feed Additives to Lactating Dairy Cows

Animals ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 662
Author(s):  
Andre S. Avila ◽  
Maximiliane A. Zambom ◽  
Andressa Faccenda ◽  
Caroline H. Werle ◽  
Ana R. E. Almeida ◽  
...  
Keyword(s):  
Protein Synthesis ◽  
Dairy Cows ◽  
Milk Production ◽  
Condensed Tannins ◽  
Microbial Protein ◽  
Acacia Mearnsii ◽  
Microbial Protein Synthesis ◽  
Lactating Dairy Cows ◽  
Black Wattle ◽  
Milk Casein

The objective of this study was to evaluate the effects of five levels of condensed tannins (CT) from black wattle (Acacia mearnsii) in the diets of lactating dairy cows on intake, nutrient digestibility, ruminal microbial protein synthesis, milk production, composition, oxidative profile, and blood metabolites. Five Holstein cows (88 ± 26.8 days in milk) were allocated in a 5 x 5 Latin square design for a period of 20 days (14 days of diet adaptation and six for sampling). Treatments were the inclusion levels of CT at 0, 5, 10, 15 and 20 g/kg of dry matter (DM) in the diet. There was no effect of CT on DM intake. The digestibility of DM and neutral detergent fiber changed quadratically, with the maximum values at 12.2 and 11.4 g/kg of DM, respectively. There was no effect on ruminal microbial protein synthesis and milk production; however, milk casein concentration was reduced linearly. There was no effect on the milk oxidative profile. Inclusion of CT at levels up to 20 g/kg of DM did not affect intake or microbial protein synthesis; however, added CT depressed the production of energy corrected milk and milk casein concentration.

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