EVALUATION OF TRITICALE SILAGE FOR LACTATING COWS

1972 ◽  
Vol 52 (2) ◽  
pp. 373-376 ◽  
Author(s):  
L. J. FISHER
Keyword(s):  
Body Weight ◽  
Protein Content ◽  
Milk Yield ◽  
Dry Matter ◽  
Corn Silage ◽  
Holstein Cows ◽  
Apparent Digestibility ◽  
Lactating Cows ◽  
Nutritive Values

The nutritive values of corn and triticale silage were compared in a changeover experiment using eight lactating Holstein cows. Intake of silage dry matter was significantly greater (P < 0.05) for corn silage (9.41 vs. 7.49 kg/100 kg0.75 body weight) than for triticale silage. Solids, corrected milk yield, and protein content were significantly higher (P < 0.01) for corn silage (25.0 vs. 21.4 kg/day and 3.34 vs. 3.11%) than for triticale silage. The apparent digestibility of dry matter for rations containing corn and triticale silage was 67.0 and 64.0%, respectively.

A COMPARISON OF TWO METHODS OF COMBINING ALFALFA CUBES WITH CORN SILAGE FED TO LACTATING COWS

1977 ◽  
Vol 57 (3) ◽  
pp. 559-565
Author(s):  
L. J. FISHER
Keyword(s):  
Milk Yield ◽  
Dry Matter ◽  
Protein Digestibility ◽  
Corn Silage ◽  
Feeding Time ◽  
Plasma Urea ◽  
Lactating Cows ◽  
Fat Yield ◽  
Changeover Period ◽  
Feeding Systems

Sixteen Holstein cows in early lactation were assigned to a switch-back experiment consisting of two experimental periods 35 days in length separated by a 7-day changeover period. Treatments consisted of two feeding systems, alfalfa cubes ensiled with corn silage or alfalfa cubes fed with the corn silage. When cows were fed corn–alfalfa cube silage they consumed more forage, 2.26 vs. 2.16% of body weight per cow per day than when they were fed the alfalfa cubes with the silage. Fat-corrected milk yield was somewhat higher, 25.4 vs. 24.0 kg/day; fat percent and fat yield were greater, 3.13 vs. 2.70% and 918 vs. 814 g/day for corn–alfalfa cube silage as compared to cubes added at feeding time. However, milk yield was greater, 29.9 vs. 29.1 kg/day, and milk lactose percent was greater, 5.26 vs. 5.18% for cows fed cubes at feeding time compared to cows fed corn–alfalfa cube silage. There was no difference between feeding systems in blood minerals or metabolites with the exception of plasma urea nitrogen which was higher, 20.2 vs. 17.2 mg %, for the alfalfa cubes fed with the corn silage. Apparent dry matter and protein digestibility for the total ration were 68.1 and 71.6% when corn alfalfa cube silage was fed compared to 65.4 and 68.5% when the cubes were fed with the corn silage (P < 0.05). It was concluded from this study that alfalfa cubes ensiled with corn silage was an effective method of increasing the dry matter and protein content of corn silage and in improving the digestibility of the total ration.

EFFECTS OF SUPPLEMENTAL HAY ON CONSUMPTION OF LOW AND MEDIUM DRY MATTER CORN SILAGE BY HIGH-PRODUCING DAIRY COWS

1972 ◽  
Vol 52 (3) ◽  
pp. 491-495 ◽  
Author(s):  
D. E. WALDERN
Keyword(s):  
Body Weight ◽  
Dairy Cows ◽  
Dry Matter ◽  
Body Weight Gain ◽  
Corn Silage ◽  
Daily Production ◽  
Lactating Cows ◽  
Orchard Grass ◽  
Grass Hay ◽  
Daily Body Weight

The effects of supplementing low (23.9%) dry matter (DM) and medium (28.9%) DM corn silage roughage rations fed ad libitum to high-producing dairy cows, with orchard grass hay at 0.7% of their body weight on milk production and composition, was determined in a double reversal feeding trial using 24 lactating cows. Cows fed medium DM corn silage consumed 15.2% more DM/100 kg body weight daily than those cows fed low DM silage (P < 0.05). Supplemental hay fed with either low or medium DM silage resulted in equal consumption of total forage DM/100 kg body weight by cows on the two treatments. Each kilogram of hay DM consumed by cows offered low DM corn silage reduced silage DM intake by 0.47 kg, whereas hay DM intake reduced silage DM intake by 0.79 kg for cows offered medium DM silage. Daily production of 4% fat-corrected milk (FCM), percent nonfat solids (SNF), and daily body weight gain were lower for cows consuming low DM corn silage than for those on the other treatments (P < 0.05). Cows consuming low DM corn silage plus orchard grass hay at 0.7% of their body weight produced milk at the same level and of similar protein, lactose, and SNF content as those fed medium DM silage plus hay. Supplemental hay fed with medium or low DM corn silage increased FCM production over feeding silage alone, independent of DM or moisture content of the silage fed (P < 0.05).

FACTORS INFLUENCING DRY MATTER INTAKE AND UTILIZATION OF CORN SILAGE BY LACTATING COWS

1968 ◽  
Vol 48 (2) ◽  
pp. 207-214 ◽  
Author(s):  
L. J. Fisher ◽  
V. S. Logan ◽  
L. S. Donovan ◽  
R. B. Carson
Keyword(s):  
Body Weight ◽  
Moisture Content ◽  
Milk Production ◽  
Dry Matter ◽  
Energy Content ◽  
Corn Silage ◽  
Dry Matter Intake ◽  
Factors Affecting ◽  
Lactating Cows ◽  
Factors Influencing

Moisture content, hay supplementation and energy content of corn silages were studied as factors affecting dry matter (DM) intake and utilization by lactating cows. In experiment I, a two-week delay in date of harvest resulted in an increase in DM content of silage for the two varieties of corn, but this was associated with significantly greater (P < 005) DM intake and fat-corrected milk production for only the earlier-maturing variety (Pride 5). Harvest date had no influence on solids-not-fat (SNF) content of the milk or body weight, but silage from Pride 5 corn resulted in a significantly (P < 0.05) higher SNF content and greater loss in body weight. In experiment II, feeding 4.7 kg of hay per day significantly reduced (P < 0.05) silage dry-matter intake and increased total ration dry-matter intake but did not change milk production or composition when compared with feeding 2.3 kg of hay per day. In experiment III, ear silage, stalk and leaf silage and hay were compared as a source of roughage for lactating cows. Total ration dry-matter intake was significantly greater (P < 0.05) for hay fed alone, but milk production was apparently higher when the ear silage was fed.

scholarly journals AN EVALUATION OF STEAM-TREATED ASPEN AS A SUBSTITUTE FOR CORN SILAGE IN THE RATIONS OF LACTATING COWS

1980 ◽  
Vol 60 (2) ◽  
pp. 379-384
Author(s):  
L. J. FISHER
Keyword(s):  
Acetic Acid ◽  
Milk Yield ◽  
Dry Matter ◽  
Nutritive Value ◽  
Rumen Fluid ◽  
Latin Square ◽  
Corn Silage ◽  
Lactating Cows ◽  
Milk Protein Content ◽  
Forage Mixtures

Fifteen lactating Holsteins were used to test processed aspen added to corn silage at the levels of 0, 10 and 20% (dry matter basis). The experiment was designed as a latin square with three experimental periods each 42 days in length. The forage mixtures were fed free choice to the cows, which were housed in a free-stall barn, and their individual feed intakes were recorded by using electronic doors. The processed aspen contained 45.4% dry matter, 73.7% acid detergent fiber and 0.54% protein. There was no evidence of heating or mold growth in the aspen during the 5 mo of the trial. Silage dry matter intake and milk yield were 11.8, 13.4 and 13.4 and 25.7, 27.0 and 26.8 kg per day, respectively, for the silage mixtures containing 0, 10 and 20% processed aspen. Fat test was decreased slightly and milk protein content significantly (P < 0.05) depressed by the addition of 20% processed aspen chips to the corn silage. Efficiency of milk yield was not significantly influenced (P > 0.05) by the inclusion of aspen chips in the silage. Neither the molar proportion of acetic acid nor the ratio of acetic acid to propionic acid in the rumen fluid was changed when the cows were fed silage containing processed aspen chips. The apparent digestibilities of total ration dry matter and protein were lowered significantly by the addition of 10% aspen chips to the forage mixture. It was concluded from the results of this trial that steam-processed aspen chips had little nutritive value when fed to lactating cows as a partial substitute for corn silage.

Efficiency of Utilization of Tropical Grass Pastures by Lactating Cows with and Without Supplement

1969 ◽  
Vol 66 (3) ◽  
pp. 200-222
Author(s):  
J. A. Yazman ◽  
R. E. McDowell ◽  
H. Cestero ◽  
J. A. Arroyo-Aguilú ◽  
J. D. Rivera-Anaya ◽  
...  
Keyword(s):  
Body Weight ◽  
Milk Yield ◽  
Dry Matter ◽  
Supplementary Feeding ◽  
High Rate ◽  
Stocking Rate ◽  
Pasture Grass ◽  
Protein Nitrogen ◽  
Lactating Cows ◽  
Tropical Grass

Records of milk yield, fat percent, body weight, reproduction and health of 506 calvings of 362 cows were used for estimating the efficiency of utilization of tropical grass pastures by lactating cows fed on grazing alone or grazing with various types of supplement. There were seven feeding systems: grazing alone (T1); grazing plus supplement with ground maize (T2); with molasses (T3); with concentrate (T5); or with urea-molasses (T6), at the rate of 1.0 kg per 2.0 kg milk in excess of 10 kg of milk per day and of 2.5 cows per ha; or grazing plus concentrate feeding of 1.0 kg per 2.0 kg milk irrespective of milk yield at a stocking rate either of 2.5 cows (T4) or 5-0 cows (T7) per ha. All supplement systems had significantly higher yields of milk, fat and fat-corrected milk than grazing alone. Level of fat percent paralleled dependence on intake of forage. Supplement also extended days in milk. System of feeding was significant for body weight gain, time to reach peak milk yield, the level of peak yield, persistency of milk yield, days open, time from first breeding to conception, and calving interval. High levels of supplement (T4, T7) increased weight gains, time to reach peak yield, and persistency, but lowered breeding efficiency. On medium levels (T3, T5, T6), the efficiency (Meal/kg dry matter) of utilization of supplement for milk production was satisfactory, but unsatisfactory on high supplement levels (T4, T7). Supplements as high or higher than those in the grass treatments supplemented with non-protein nitrogen (urea-molasses) or crude protein (concentrate) gave a more efficient utilization than either maize or molasses. During the first 150 days of lactation, cows on grazing alone averaged 14.3 kg pasture grass dry matter intake per day, or 2.9% of body weight. Cows on low supplement (T2, T3, T5, T6) averaged 24 to 29% less; and cows on high supplement, nearly 60% less intake. Type of supplement had little influence on pasture grass dry matter (PGDM) intake. When the genetic potential for milk yield of cows exceeds 3,000 kg, supplementary feeding appears economically feasible. Even under the high levels of nitrogen fertilization employed, there was a rise in average milk yield with intakes of protein from the supplementary feed. Supplementary feeding with tropical grass pastures caused a high rate of substitution; hence, the efficiency of use of PGDM is lowered unless stocking rate is carefully adjusted.

THE DRY MATTER INTAKE AND DIGESTIBILITY OF WINTER WHEAT HARVESTED AS WHOLE CROP SILAGE

1977 ◽  
Vol 57 (2) ◽  
pp. 255-261 ◽  
Author(s):  
L. J. FISHER ◽  
J. R. LESSARD
Keyword(s):  
Winter Wheat ◽  
Protein Content ◽  
Dry Matter ◽  
Milk Composition ◽  
Corn Silage ◽  
Dry Matter Intake ◽  
Lactating Cows ◽  
Crude Fiber Content ◽  
Significant Difference ◽  
Dough Stage

Wheat was harvested for silage at the milk, the soft dough and the firm dough stages of maturity and fed to lactating cows in a comparison with corn silage harvested at 30% dry matter. The protein content of the four silages ranged from 7 to 8.3%. The crude fiber content of the corn silage (22%) was lower than that of the three wheat silages ranging from 27.4% at the firm dough stage to 34.5% at the milk stage. Silage dry matter intake was highest for the firm dough wheat silage and lowest for the corn silage. However, there was no significant difference in milk yield or milk composition among the four silages. The higher intake of the firm dough silage compared to corn silage was compensated for by the tendency of higher digestibility of the corn silage. The rumen acetate content of the cows fed soft dough wheat silage was higher than for those fed corn silage and milk stage wheat silage, while the reverse was true for rumen propionate.

THE INVESTIGATION OF SODIUM BICARBONATE OR BENTONITE AS SUPPLEMENTS IN SILAGES FED TO LACTATING COWS

1983 ◽  
Vol 63 (4) ◽  
pp. 939-947 ◽  
Author(s):  
L. J. FISHER ◽  
V. G. MACKAY
Keyword(s):  
Sodium Bicarbonate ◽  
Milk Yield ◽  
Dry Matter ◽  
Volatile Fatty Acids ◽  
Latin Square ◽  
Corn Silage ◽  
Dry Matter Intake ◽  
Feed Conversion ◽  
Grass Silage ◽  
Lactating Cows

Two experiments with lactating Holsteins were carried out to determine the effectiveness of sodium bicarbonate (NaHCO3) or bentonite, added to silage prior to feeding, as a means of increasing dry matter intake. In the first trials the feed, consisting of 10% grain mixture, 45% grass silage and 45% corn silage, was supplemented with 0, 0.6 or 1.2% bentonite in a 3 × 3 latin square utilizing 12 cows and 28-day test periods. Neither level of bentonite improved dry matter intake or milk yield. Milk composition, molar proportions of rumen volatile fatty acids, plasma calcium and phosphorus were not influenced by additions of bentonite. Apparent dry matter digestibility was significantly reduced (P < 0.05) by the addition of bentonite at the 0.6 and 1.2% levels compared to the cows fed the unsupplemented ration. The digestibility of acid detergent fiber was lower (P < 0.05) for cows fed the silage mixture supplemented with 1.2% bentonite than for the controls. In the second trial a silage mixture consisting of approximately 30% grass silage and 70% corn silage was supplemented with either 0.8% NaHCO3, 2.1% bentonite or neither and fed in a 3 × 3 latin square utilizing 15 cows and 28-day treatment periods. Compared to control cows, neither NaHCO3 nor bentonite had any significant (P > 0.05) influence on dry matter intake, milk yield or rumen fermentation. However, the addition of NaHCO3 to the silage improved milk yield and feed conversion (P < 0.05) when compared to cows fed the silage supplemented with bentonite. It was concluded from these trials that bentonite should not be used as a supplement to silage diets fed to lactating cows. The results suggested that NaHCO3 supplementation had little if any beneficial effect when grass silage made up approximately 30% of the total diet. Key words: NaHCO3, bentonite, lactating cows, silage intake, digestibility

scholarly journals THE CONSUMPTION OF ACID WHEY BY LACTATING COWS

1981 ◽  
Vol 61 (1) ◽  
pp. 209-211 ◽  
Author(s):  
LORNE J. FISHER
Keyword(s):  
Protein Content ◽  
Dry Matter ◽  
Free Choice ◽  
Milk Protein ◽  
Corn Silage ◽  
Feeding Period ◽  
Lactating Cows ◽  
Milk Protein Content ◽  
Acid Whey ◽  
Whey Feeding

Acid whey with 0.1% formalin added as a preservative was fed free choice for 14 days to four lactating Holsteins. Whey intake averaged 55 kg/cow/day (3.6 kg of whey dry matter (DM)). Intake of corn silage decreased from 7.1 to 3.9 DM/day and intake of hay was stimulated slightly. Milk yield was sustained and milk protein content increased during the whey-feeding period.

scholarly journals The Effects of Replacing Dry Forage With Corn Silage on Milk Yield, Composition and Fatty Acids’ Profiles, Blood Metabolites, Nitrogen Balance, and Rumen Fermentation Parameters in Mahabadi Lactating Goats

2021 ◽  
Author(s):  
Shohre Tarverdi Sarabi ◽  
Amir Fattah ◽  
Nader Papi ◽  
Seyyed Roohollah Ebrahimi Mahmoudabad
Keyword(s):  
Fatty Acids ◽  
Body Weight ◽  
Milk Yield ◽  
Nitrogen Balance ◽  
Dry Matter ◽  
Rumen Fermentation ◽  
Corn Silage ◽  
Blood Metabolites ◽  
Lactating Goats ◽  
Fermentation Parameters

Abstract The present study was performed with the aim of investigating the effects of replacing dry forage with corn silage on performance, milk yield, composition and fatty acids’ profiles, blood metabolites, nitrogen balance, and rumen fermentation parameters in Mahabadi lactating goats. For this purpose, a total of 20 lactating goats aged between 2 and 5 years old and with body weight of 45.3 ± 7.20 (DS) kg were categorized into two groups, each one containing ten goats. Experimental treatments consisted of controlling diet and dietary substitution of forage part with corn silage at 20% of dry matter. The obtained data were analyzed by the mixed model for a randomized completed design using statistical packages of SAS (2002). The replacement of dry forage with corn silage did not affect the dry matter intake (DMI), live body weight, and milk yield. Feeding corn silage, rather than dry forage, had no significant effect on milk unsaturated fatty acids, monounsaturated fatty acids, C18:1C9 percentages, and non-esterified fatty acids concentration, and it caused a decline in milk polyunsaturated fatty acids percentage. As well, dietary inclusion of corn silage significantly decreased plasma urea nitrogen content in goats (P<0.05). Furthermore, feeding corn silage led to a significant increase in antioxidant capacity of rumen liquor (P<0.05), plasma (P<0.01), and milk (P<0.01) of lactating goats. Of note, the dietary addition of corn silage caused no significant effects on microbial nitrogen and nitrogen balance in lactating goats. Feeding corn silage did not affect the ruminal total volatile fatty acids, acetic acid, propionic acid, and butyric acid at both periods before and after feeding. In general, results indicated that replacing dry forage with corn silage could consequently improve the antioxidant status in Mahabadi lactating goats.

VALUE OF WHOLE PLANT FABA BEAN SILAGE AS THE SOLE FORAGE FOR LACTATING COWS

1977 ◽  
Vol 57 (3) ◽  
pp. 601-603 ◽  
Author(s):  
D. R. McKNIGHT ◽  
G. K. MacLEOD
Keyword(s):  
Fatty Acids ◽  
Body Weight ◽  
Faba Bean ◽  
Dry Matter ◽  
Volatile Fatty Acids ◽  
Body Weight Gain ◽  
Dry Matter Intake ◽  
Apparent Digestibility ◽  
Lactating Cows ◽  
Whole Plant

Lactating Holstein cows fed either whole plant faba bean silage or grass–legume silage as sole forage produced similar yields of milk of comparable composition. Dry matter intake and body weight gain were greater for cattle fed faba bean silage, but apparent digestibility of dry matter, protein and energy, and proportions of rumen volatile fatty acids were similar.

Sign in / Sign up

Export Citation Format

Share Document