Live weight, condition score andLongissimus dorsiresponses to energy and protein supplies during the dry period in dairy cows

Increases in yields of milk and milk protein have been observed from dairy cows offered a high protein supplement during the dry period (Van Saun et al., 1993; Moorby et al., 1994). One possible mechanism for this is a decrease in the mobilisation of maternal body protein to support foetal growth as more dietary protein is supplied and used for this purpose. This experiment was designed to investigate the effect of offering diets differing in protein concentration on whole body nitrogen balance in dairy cows and change in live weight (LW) and condition score (CS) over the dry period.

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PSXIV-15 The effects of body condition score on the milk production and energy balance of transition dairy cows

Journal of Animal Science ◽

10.1093/jas/skab235.835 ◽

2021 ◽

Vol 99 (Supplement_3) ◽

pp. 472-472

Author(s):

YangYi Hao

Keyword(s):

Energy Balance ◽

Dairy Cows ◽

Milk Production ◽

Milk Yield ◽

Body Fat ◽

Body Condition ◽

Body Condition Score ◽

Rumen Ph ◽

Transition Dairy Cows ◽

Condition Score

Abstract Our objective was to evaluate the effects of body condition score (BCS) on the milk production and energy balance of transition dairy cows. Seventy-five multiparous dairy cows were separated into four groups according to the BCS, HH (4.25 ± 0.23 and 3.35 ± 0.19 BCS, pre and postpartum, respectively, n = 17), HM (4.14 ± 0.15 and 2.92 ± 0.24, n = 19), MM (3.10 ± 0.21 and 2.78 ± 0.17, n = 23), ML (2.88 ± 0.23 and 2.46 ± 0.19, n = 16). The milk yield, rumen pH, etc., data were collected and analyzed using a one-way ANOVA model in SAS (SAS version 9.4, SAS Institute Inc., Cary, NC, USA). The ML group had a higher milk yield and total solid yield than the MM group (P < 0.05), while the HH and HM groups had no difference with other groups. The HM and ML groups had a higher milk fat content than the MM group (P < 0.05), while the HH group had no difference with other groups. Milk protein content in the HH group was higher than the ML group (P < 0.05). The milk lactose, total solids, urea content in these groups had no difference. The ML group had a higher milk acetone content than the HH group (P < 0.05). The BCS change in the HH and HM groups was higher than the MM and ML groups, and that in the ML group was higher than the MM group (P < 0.05). The rumen pH had no difference within these groups. These findings collectively indicated the prepartum dairy cow with middle BCS would have a more efficient body fat utilization and a better milk production performance. Furthermore, reducing body fat loss is necessary to avoid the negative energy balance.

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A note on the effect of monensin sodium administered by intraruminal controlled-release devices on productivity of dairy cows at pasture

Animal Science ◽

10.1017/s0003356100005572 ◽

1990 ◽

Vol 51 (2) ◽

pp. 418-421 ◽

Cited By ~ 12

Author(s):

G. A. Lynch ◽

M. E. Hunt ◽

S. N. McCutcheon

Keyword(s):

Controlled Release ◽

Dairy Cows ◽

Milk Protein ◽

Live Weight ◽

Lactating Dairy Cows ◽

Weight Condition ◽

Condition Score ◽

Milk Solids ◽

And Control ◽

Release Devices

The effects of monensin sodium, administered by intraruminal controlled-release devices at a rate of 320 mglday, on milk and milk solids production and bloat score were examined in a trial with 90 lactating dairy cows given only mixed ryegrasslwhite clover pasture. Monensintreated cows had significantly greater yields of milk and milk protein than control cows (1397·2 (s.e. 22·9) v. 1296·9 (s.e. 16·3) kg milk, 49·6 (s.e. 0·9) v. 46·5 (s.e. 0·6) kg protein) over the 14-week period of treatment (P < 0·01). Yield of fat was similar in monensin-treated and control cows (62·9 (s.e. 1·5) v. 63·4 (s.e. 1·1) kg). Live weight, condition score and bloat score were not influenced by treatment but pasture conditions were not conducive to severe bloat challenge.

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Participatory on-farm evaluation of the response to concentrate supplementation by cows in early lactation in smallholder peasant (campesino) dairy production systems in the highlands of central Mexico

The Journal of Agricultural Science ◽

10.1017/s0021859601001095 ◽

2001 ◽

Vol 137 (1) ◽

pp. 97-103 ◽

Cited By ~ 7

Author(s):

C. M. ARRIAGA-JORDÁN, ◽

F. J. FLORES-GALLEGOS ◽

G. PEÑA-CARMONA ◽

B. ALBARRÁN-PORTILLO ◽

A. GARCÍA-MARTÍNEZ ◽

...

Keyword(s):

Dairy Cows ◽

Milk Production ◽

Milk Yield ◽

Live Weight ◽

Appropriate Technology ◽

Central Mexico ◽

Early Lactation ◽

Concentrate Supplementation ◽

Condition Score ◽

On Farm

Concentrates are the main cash expenditure in smallholder campesino dairying in the highlands of Central Mexico. Improved, low-cost, appropriate feeding strategies have been therefore identified by campesinos as a priority. An on-farm trial was undertaken in 1998 to evaluate the response to supplementation with concentrates by dairy cows in early lactation during the rainy season with restricted access to grazing of ryegrass/white clover pastures. A base of 3·0 kg commercial concentrate/cow/day (S3) was compared against the higher rate used by farmers of 5·0 kg/cow/day (S5). Three farmers with one, and one farmer with two pairs of freshly calved upgraded Holstein cows participated in the trial (24±10·7 days into lactation). Data were analysed by a random block split-plot design where supplementation treatments were main plots and measurement periods were split-plots. Milk yield was recorded once per week for 9 weeks, and live weight and condition score for four 28 day periods. Milk yields were 21·8 for S3 and 21·9 for S5 (±0·714) kg milk/day/cow (P > 0·05); live weight S3 = 444·0 and S5 = 496·0 (±12·663) kg/cow (P > 0·05), and condition score S3 = 1·9, and S5 = 1·8 (±1·127) (P >0·05). There were no significant (P> 0·05) effects of measurement periods, and there was no significant (P > 0·05) interaction. The lack of response in milk yield, live weight or condition score to increased concentrate supplementation demonstrates that at these levels of production and management, the access to grazing of improved pastures, plus limited concentrate, enables cows in campesino systems to meet their nutrient requirements, and the feasibility of efficient milk production from grazed pastures as an appropriate technology. It is also concluded that it is an appropriate technology and that the results have implications for research and extension workers in rural development who have promoted large amounts of concentrate to dairy cows as the only way towards high yields and efficient milk production.

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Effect of diet on dairy cow nitrogen balance and live weight change during the dry period

Proceedings of the British Society of Animal Science ◽

10.1017/s0308229600030543 ◽

1996 ◽

Vol 1996 ◽

pp. 84-84

Author(s):

J.M. Moorby ◽

S. Miles ◽

R.T. Evans ◽

W.J. Fisher ◽

D.W.R. Davies

Keyword(s):

Dairy Cows ◽

Nitrogen Balance ◽

Protein Concentration ◽

Milk Protein ◽

Live Weight ◽

Whole Body ◽

Dry Period ◽

Body Protein ◽

Foetal Growth ◽

Condition Score

Increases in yields of milk and milk protein have been observed from dairy cows offered a high protein supplement during the dry period (Van Saun et al., 1993; Moorby et al., 1994). One possible mechanism for this is a decrease in the mobilisation of maternal body protein to support foetal growth as more dietary protein is supplied and used for this purpose. This experiment was designed to investigate the effect of offering diets differing in protein concentration on whole body nitrogen balance in dairy cows and change in live weight (LW) and condition score (CS) over the dry period.

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Lactational responses to energy and protein supplies during the dry period in dairy cows

Proceedings of the British Society of Animal Science ◽

10.1017/s1752756200005858 ◽

2001 ◽

Vol 2001 ◽

pp. 203-203 ◽

Cited By ~ 3

Author(s):

G. Jaurena ◽

J. M. Moorby ◽

W. J. Fisher ◽

D. W. R. Davies

Keyword(s):

Dairy Cows ◽

Milk Production ◽

Milk Yield ◽

Live Weight ◽

Dry Period ◽

Composition Effects ◽

Weight Gains ◽

Protein Supply

Nutritional manipulation during the dry period can alter subsequent animal responses to feeding in terms of milk yield and composition. Previous research has shown interesting differences in milk production and composition due to energy or protein supply in the dry period (Moorbyet al., 1996). The objective of this experiment was to test the interaction between energy and protein supplies during the dry period on subsequent milk production and composition. Effects on live weight gains and condition scores are reported in a separate summary (Jaurenaet al., 2001).

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Service Sire Effects on Body Condition Score, Milk Production, and Rebreeding of Mixed-Aged Dairy Cows Bred to Angus and Hereford Bulls—A Case Study in New Zealand

Dairy ◽

10.3390/dairy2040049 ◽

2021 ◽

Vol 2 (4) ◽

pp. 637-648

Author(s):

Lucy Coleman ◽

Penny Back ◽

Hugh Blair ◽

Nicolas López-Villalobos ◽

Rebecca Hickson

Keyword(s):

Dairy Cows ◽

Milk Production ◽

Body Condition ◽

Body Condition Score ◽

Live Weight ◽

Gestation Length ◽

Beef Breed ◽

Condition Score ◽

Selection Of

Beef-breed bulls are used in dairy herds to produce a calf of greater value for finishing than calves sired by dairy bulls. There is limited research about which beef-breed bulls are most appropriate, and whether any negative impact on cow performance in terms of milk production and rebreeding should be considered. The aim of this case study was to compare the body condition score, milk production, and rebreeding performance of mixed-aged dairy cows bred to a selection of Angus and Hereford beef-breed bulls. Body condition score, post-calving live weight, milk production, rebreeding performance, and survival of 952 mixed-aged dairy cows artificially bred to 65 Angus and Hereford bulls were compared. There was no effect of service sire on post-calving live weight, days in milk, milk production, or inter-calving intervals of mixed-aged cows. Service sire had an effect on the calving day due to differences in gestation length (p < 0.001), although this did not translate into an effect on days in milk. A longer gestation length negatively influenced pregnancy rates, and greater birth weight of the calf negatively influenced survival to rebreeding (p < 0.05), indicating the potential for an effect of service sire. Selection of beef-breed service sires for dairy cows should include emphasis on lighter calves and shorter gestation lengths. The general absence of the service sire effect on the parameters measured in this study indicated that any of the service sires used in this experiment would be appropriate for use over dairy cows.

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