scholarly journals Effect of Stage of Maturity on the Nutritive Value of Atlas Sorghum Silage for Lactating Dairy Cows

1962 ◽  
Vol 45 (5) ◽  
pp. 625-628 ◽  
Author(s):  
Foster G. Owen
Keyword(s):  
Dairy Cows ◽  
Nutritive Value ◽  
Lactating Dairy Cows ◽  
Sorghum Silage

scholarly journals Novel use of the wild species Cephalaria joppensis for silage preparation and its nutritive value for feeding lactating dairy cows

2012 ◽  
Vol 95 (8) ◽  
pp. 4501-4509 ◽  
Author(s):  
J. Miron ◽  
Z.G. Weinberg ◽  
Y. Chen ◽  
D. Miron ◽  
Y. Raviv ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Wild Species ◽  
Nutritive Value ◽  
Lactating Dairy Cows

scholarly journals Evaluation of milk quality from dairy cows fed maize (Zea mays) stover treated with chopped and mineralized groundnut (Arachis hypogea) and soybean (Glycine max) stover

2022 ◽  
Vol 13 (1) ◽  
pp. 102-114
Author(s):  
Chisowa DM ◽  
Mpofu, I DT ◽  
Daura MT ◽  
Syampaku EM
Keyword(s):  
Dairy Cows ◽  
Milk Fat ◽  
Nutritive Value ◽  
Milk Quality ◽  
Arachis Hypogea ◽  
Protein Levels ◽  
Lactating Dairy Cows ◽  
Density Values ◽  
Feeding Trials

This study evaluated the effect of upgrading the quality of maize stover (MS) on milk nutritive value. The study involved feeding MS improved using urea (U), chopped groundnut stover (cGS), chopped soybean stover (cSS), mineralized groundnut stover solution (mGS) and mineralized soybean stover solution (mSS) to lactating dairy cows. The feeding trial involved twelve (12) dairy cows in their second parity. Effect of supplementation with MS improved with U, cGS, cSS, mGS and mSS on milk quality was evaluated following on-station feeding trials. The study involved 22 factorial experiments within a Completely Randomised Design (CRD). Milk samples were analysed for protein, lactose, fat and solid not fat (SNF). Mean milk protein levels ranged from 3.52mg/ml to 3,73mg/ml (s.e=0.03) for milk from cows fed on MS improved using cGS and mGS respectively. Protein and Lactose were observed to be the least variable (3.64g/ml ±0.12, and 5.24g ±0.24 respectively). Average milk fat content was highest (4.78%, se=0.52) in milk from cows fed on UET treated MS and lowest (3.43%, se=0.52) in milk from cows fed on gGS protein based MS. Within legume type milk fat was higher(4.75%±1.99) in milk from cows fed on MS blended with mGS than that in milk from cows fed on MS improved with cGS (3.43%±1.99). Similar result was observed in milk fat from cows fed on MS improved with the use of soybean. Lactose in milk from cows fed on UET treated MS was highest (5.51g, se=0.061) and lowest (5.10g, se=0.061) in milk from cows fed on MS blended with cGS. Milk from cows fed on MS improved with mGS was higher (9.61p/cwt, se=0.14) in SNF and lowest (8.88p/cwt, se=0.14) in milk from cows fed on MS with cGS. The milk density values ranged from 32.65sg, se=0.53 for milk from cows fed on UET treated MS to 30.42sg, se=0.053 for milk from cows fed on MS blended with cGS. Milk components were higher when cows were fed on MS improved using mineralized legume stover solutions.

Nutritive value for lactating dairy cows of the pressed herbage remaining after the partial extraction of leaf juice

1981 ◽  
Vol 21 (111) ◽  
pp. 376 ◽  
Author(s):  
CR Stockdale ◽  
KR King ◽  
DR McKenzie
Keyword(s):  
Dairy Cows ◽  
Milk Yield ◽  
Nutritive Value ◽  
Protein Extraction ◽  
Significant Loss ◽  
In Vitro Digestibility ◽  
Lactating Dairy Cows ◽  
Partial Extraction

A series of six experiments compared the production of lactating dairy cows eating either fresh herbage or the pressed herbage remaining after the partial extraction of juice. Irrigated perennial pasture and irrigated lucerne (Medicago sativa) were used in different experiments. With forage-harvested pasture, extraction removed an average of 42.1 g of protein per kg dry matter (DM) of pasture processed. An average of 85% of the DM of the original fresh pasture was left as pressed pasture. The process lowered the in vitro digestibility, total nitrogen, and cell contents of the herbage, and raised the cell wall constituents. It also reduced herbage phosphorus, potassium, magnesium and sodium, but increased herbage calcium slightly. The milk yield of cows fed an equivalent DM intake of pressed residue was, on average, 6% lower than the milk yield of cows fed fresh pasture. The responses shown by the milk constituents were inconsistent. With lucerne, extraction removed an average of 95.9 g of protein from each kg of fresh herbage and an average of 74% of the lucerne was left as pressed lucerne. This reduced the quality of the pressed residue as determined by in vitro digestibility (5%), Kjeldahl nitrogen (19%) and neutral detergent fibre (27%). However, there was no significant loss of production for cows on the pressed herbage, although there were small differences. It is concluded that lucerne would appear to have the greater potential for a leaf protein extraction industry in the irrigated areas of the Goulburn Valley of Victoria.

Evaluation of solvent and expeller linseed meals as protein sources for dairy cattle

1994 ◽  
Vol 74 (3) ◽  
pp. 479-485 ◽  
Author(s):  
G. R. Khorasani ◽  
J. J. Kennelly ◽  
P. H. Robinson
Keyword(s):  
Dairy Cattle ◽  
Dairy Cows ◽  
Soybean Meal ◽  
Nutritive Value ◽  
Canola Meal ◽  
Linseed Meal ◽  
Protein Supplements ◽  
Lactating Dairy Cows

The objectives of the present study were to evaluate the nutritive value of expeller linseed meal (ELM) and solvent linseed meal (SLM) as protein supplements for lactating dairy cows utilizing analytical and in situ procedures, and determine the in vivo nutritive value of the most promising linseed meal in diets containing either barley or corn-based concentrate. Canola meal (CM) and soybean meal (SBM) were included in the evaluative stage for comparative purposes. Linseed meals contained 37.8 and 35.4% crude protein (CP); 22.6 and 25.9% neutral detergent fibre (NDF); and 12.9 and 7.1% crude fat for ELM and SLM, respectively. Rate and extent of dry matter, NDF, and CP digestion, as determined by the rumen in situ technique, indicated that ruminal digestibility of SLM was similar to that observed for CM, but ruminal escape of ELM protein was higher than for CM. The proportion of ruminal escape protein was similar for SLM, CM and SBM. Total tract CP digestibilities of SLM and CM were similar to and lower than those observed for ELM and SBM. Soybean meal had the highest total tract CP digestibility. Based on results of the analytical and in situ procedures, SLM was selected for evaluation in the in vivo experiment. Results indicated that SLM did not have any deleterious effect on digestion of other components of the diet, and parameters of rumen fermentation indicated similar digestion patterns for cows fed SLM and CM. Overall, results indicate that SLM has potential as a replacement for CM or SBM in diets of dairy cattle. It was also concluded that replacement of barley with corn does not influence the nutritive value of SLM for dairy cows. Key words: Linseed meal, canola meal, dairy cattle

scholarly journals Corn and Sorghum Silage for Lactating Dairy Cows

1967 ◽  
Vol 50 (8) ◽  
pp. 1255-1261 ◽  
Author(s):  
P.T. Nordquist ◽  
Myron G.A. Rumery
Keyword(s):  
Dairy Cows ◽  
Lactating Dairy Cows ◽  
Sorghum Silage
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