The effects of using a bacterial inoculant with unwilted and wilted grass silages on performance and nutrient utilisation by dairy cattle

1995 ◽  
Vol 1995 ◽  
pp. 28-28
Author(s):  
T. Yan ◽  
D. C. Patterson ◽  
F. J. Gordon ◽  
M. G Porter

In recent years there has been increasing interest in the use of bacterial inoculants as silage additives. A number of recent studies have shown improvements in silage fermentation, feed intake and milk production following the use of inoculant additives at ensiling. Even when compared with well preserved control silages, studies at this Institute have shown that treatment with an inoculant of Lactobacillus plantarum at ensiling has produced positive responses in both silage intake and milk yields (Gordon, 1989; Mayne, 1990). This leads to the hypothesis that, unlike the traditional acid additives, application of an inoculant at ensiling to grass which has been wilted to a high dry matter (DM) concentration may still produce improvements in milk production in comparison with untreated silages. The objective of the present study therefore was to examine if the response to the use of a bacterial inoculant at ensiling was influenced by the wilting of grass.

2017 ◽  
Vol 25 (1) ◽  
pp. 21 ◽  
Author(s):  
Budi Utomo ◽  
Miranti Dian Pertiwi

<p>A study was addressed to evaluate the effect of rearing management improvement particularly for feed and housing management on milk production of dairy cattle. The investigation was performed at Kembang Village, Ampel Sub-District of Boyolali District, a location for Prima Tani implementation, involved the participation of 8 people of farmer group members. A group of four cattle fed the traditional diet, whereas the remaining four were offered the introduced diet containing elephant grass + commercial concentrate + cassava tuber. Measurements were made for feed intake, milk production, and milk density. Results showed that milk production of dairy cattle under the improved management was higher (P&lt;0.05) than that under the traditional one (7.08+ 0.31 versus 4.59 + 0.39 l/head/d). It was determined that the average of dry matter intake of the cattle under the traditional rearing management was 7.79 + 0.61 kg/head/d, while the cattle received the introduced diet consumed 8.29 + 0.61 kg dry matter/head/d. However, the average milk density of the cattle under the traditional rearing management (1.0253) was similar to that of cattle under the improved management (1.0271). The conclusion was that improvement of rearing management increased the amount of milk produced by dairy cattle.</p>


1995 ◽  
Vol 1995 ◽  
pp. 61-61
Author(s):  
T.W.J. Keady ◽  
R.W.J. Steen

In a series of production studies undertaken at this Institute with growing and finishing beef and dairy cattle an inoculant based on a single strain of Lactobacillus plantarum ,when applied to easy and difficult-to-ensile herbage, has produced considerable benefits in terms of silage intake and animal performance without any apparent improvement in silage fermentation. More recently detailed studies have shown that treatment of herbage at ensiling with the same inoculant has resulted in increased degradability of nitrogen (N) in the rumen, and total tract digestibility of dry matter (DM), organic matter (OM), N, neutral detergent fibre (NDF), and modified acid detergent fibre (MADF). Treatment with the inoculant has also altered rumen volatile fatty acid (VFA) concentrations by increasing rumen propionate and decreasing acetate concentrations.It has been suggested that the effects of inoculant treatment on silage DM intake may be due to the presence of the applied bacteria when they reach the rumen rather than their effects in the silo.


Animals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1822
Author(s):  
Cory T. Parsons ◽  
Julia M. Dafoe ◽  
Samuel A. Wyffels ◽  
Timothy DelCurto ◽  
Darrin L. Boss

We evaluated heifer post-weaning residual feed intake (RFI) classification and cow age on dry matter intake (DMI) at two stages of production. Fifty-nine non-lactating, pregnant, (Study 1) and fifty-four lactating, non-pregnant (Study 2) commercial black Angus beef cows were grouped by age and RFI. Free-choice, hay pellets were fed in a GrowSafe feeding system. In Study 1, cow DMI (kg/d) and intake rate (g/min) displayed a cow age effect (p < 0.01) with an increase in DMI and intake rate with increasing cow age. In Study 2, cow DMI (kg/d) and intake rate (g/min) displayed a cow age effect (p < 0.02) with an increase in DMI and intake rate with increasing cow age. Milk production displayed a cow age × RFI interaction (p < 0.01) where both 5–6-year-old and 8–9-year-old low RFI cows produced more milk than high RFI cows. For both studies, intake and intake behavior were not influenced by RFI (p ≥ 0.16) or cow age × RFI interaction (p ≥ 0.21). In summary, heifer’s post-weaning RFI had minimal effects on beef cattle DMI or intake behavior, however, some differences were observed in milk production.


1998 ◽  
Vol 1998 ◽  
pp. 146-146 ◽  
Author(s):  
R. H. Phipps ◽  
J.D. Sutton ◽  
A. K. Jones

Interest in the use of whole crop cereals as a complementary forage for dairy cows has developed in Europe over the last fifteen years. Initial studies in the UK concluded that near maximum dry matter (DM) yield/ha of whole crop wheat (WCW) occurred in late July/early August when crops contained at least 500 g/kg DM. However, it was noted that when these crops were ensiled they tended to be aerobically unstable. To minimise this problem it was recommended that these crops were preserved with urea rather than being ensiled. Early studies with dairy cows demonstrated that the use of both urea-treated and low DM fermented WCW increased forage intake and milk yield but effects on milk composition were inconsistent (Leaver and Hill, 1992, Phipps et al., 1995). Concern has been expressed that the use of urea in crop preservation was environmentally unacceptable and that high DM fermented WCW offered a possible alternative, which would provide high DM yields/ha of a starch-rich crop. The objective of the current study was to examine the effect of crop maturity on feed intake and milk production of dairy cows. An additional treatment was included to examine the effectiveness of an additive containing L. buchneri designed to improve aerobic stability.


Author(s):  
P. O'Kiely

Silage fermentation is progressively restricted as the extent of pre-wilting increases (O'Kiely et_al., 1988). The magnitude of the improvement in silage nutritive value in response to a lactic acid bacteria inoculant could be related to the extent of the fermentation in the untreated silage. The objective of this experiment was to determine if the response in silage nutritive value to a Lactobacillus plantarum inoculant was similar at different levels of dry matter (DM) concentration.


2001 ◽  
Vol 2001 ◽  
pp. 183-183
Author(s):  
H.C.F. Wicks ◽  
J.D. Leaver

The aim was to estimate the influence of genetic merit (£PIN95) and level of concentrate feeding (Cgrp) on predicted total dry matter intake (tDMI) of individual cows, using records collected from commercial farms. The method described by Wicks & Leaver (2000) was used to estimate individual daily dry matter intakes from seven farms, totalling 4282 monthly records over a two-year period. The method was based on milk production records supplemented by body condition scores and height at withers, which were used to calculated the ME requirements of individual animals. All the records were collected, from autumn and winter (July to March) calving cows during the housed period (August to March).


1944 ◽  
Vol 34 (1) ◽  
pp. 22-26 ◽  
Author(s):  
K. L. Blaxter

1. An experiment has been conducted with dairy cows to find the effect on milk production of feeding rations with a high dry-matter content—typical war-time rations.2. It was found that where a ration high in dry matter is fed, the cow tends to refuse food, and a statistically significant fall in milk production results. The correlation between the refusal of food, calculated in terms of starch equivalent, and the fall in milk production was 0·959.3. The factors causing this inability of the cow to consume sufficient food to meet her total nutrient requirements have been considered. It has been concluded that dry-matter consumption is not an adequate method of expressing the amount of food a cow will consume, and that the major factor influencing food consumption is the palatability of the individual foods making up the ration.My thanks are due to Dr S. J. Rowland for chemical analysis of the individual foods used in the experiments.


2021 ◽  
Vol 30 (2) ◽  
Author(s):  
Auvo Sairanen ◽  
Sari Kajava ◽  
Annu Palmio ◽  
Marketta Rinne

The objective of this study was to compare the milk production potential of first, second and third harvest of grass silage from the same sward in Northern latitudes. Three change-over design dairy cow feeding experiments were conducted during different years which differed markedly in weather conditions. The silages were supplemented with a cereal based The objective of this study was to compare the milk production potential of subsequent first, second and third cuts of grass silage from the same sward in Northern latitudes. Three change-over design dairy cow feeding experiments were conducted during different years which differed markedly in weather conditions. The silages were supplemented with a cereal based concentrate (average concentrate proportion 431 g kg-1 diet dry matter). Feed intake and milk production was highest with first-cut and lowest with third-cut silage. The energy corrected milk yields averaged over three experiments were 35.0, 33.2 and 31.9 kg d-1 for first, second and third harvest silages, respectively. Respective dry matter intakes were 23.1, 21.9 and 20.7 kg d-1. Compared to analysed feed values, the average intake of third-cut silages was lower than expected. Due to the high risk of low intake potential of third-cut silages, they are not recommended for cows in early lactation if there are other silages available.


2019 ◽  
Vol 102 (8) ◽  
pp. 7248-7262 ◽  
Author(s):  
E. Negussie ◽  
T. Mehtiö ◽  
P. Mäntysaari ◽  
P. Løvendahl ◽  
E.A. Mäntysaari ◽  
...  

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