Hubungan lama masa kering terhadap produksi susu dan puncak laktasi pada sapi perah

2020 ◽  
Vol 8 (1) ◽  
pp. 30-37
Author(s):  
Yuli Arif Tribudi ◽  
Ali Mahmud ◽  
Rosyida Fajri Rinanti
Keyword(s):  
Regression Analysis ◽  
Dairy Cows ◽  
Key Words ◽  
Milk Production ◽  
Milk Yield ◽  
Regression Equation ◽  
Period Length ◽  
Dry Period ◽  
Optimal Length

Penelitian ini bertujuan untuk mengetahui hubungan lama masa kering dengan produksi susu dan puncak laktasi pada sapi FH. Materi yang digunakan adalah data sekunder dari pencatatan recording 189 ekor sapi FH pada PT. Greenfields Indonesia di Desa Babadan Kecamatan Ngajum Kabupaten Malang. Analisis pengaruh lama masa kering terhadap produksi susu dan puncak laktasi dilakukan dengan menggunakan analisis regresi linier. Hasil analisis regresi menunjukkan bahwa hubungan lama masa kering terhadap produksi susu berpengaruh signifikan (P<0,05) dengan persamaan regresi Y = 28,31 – 1,26 X sedangkan dengan puncak laktasi menunjukkan hubungan yang tidak berpengaruh (P>0,05). Lama masa kering menentukan produksi susu pada sapi perah dengan masa kering yang ideal 55- 60 hari dimana semakin lama masa kering maka produksi susu akan menurun. Kata kunci : masa kering, produksi susu, regresi, sapi FH ABSTRACT The objective of this study was to evaluate the effect of dry period length on milk production and peak milk yield of the Friesian Holstein (FH) dairy cows. Data on milk production from 189 FH cows raised at PT. Greenfields Indonesia were collected and subjected to linier regression analysis. The results showed that dry period length significantly (P<0.05) on affected milk production with regression equation of Y = 28.31 – 1.26 X, but had no significant effect (P.0.05) on peak milk yield. The optimal length of dry period was observed between 55 and 60 days. Milk production decreased with the increasing length of dry period above 55-60 days. Key words : dry period, milk yield, regression, FH cows

Effects of dry period length on milk yield and content and metabolic status of high-producing dairy cows under heat stress

2021 ◽  
Vol 53 (2) ◽  
Author(s):  
A. Boustan ◽  
V. Vahedi ◽  
M. Abdi Farab ◽  
H. Karami ◽  
R. Seyedsharifi ◽  
...  
Keyword(s):  
Heat Stress ◽  
Dairy Cows ◽  
Milk Yield ◽  
Period Length ◽  
Metabolic Status ◽  
Dry Period

scholarly journals Effect of dry period length and dietary energy source on energy balance, milk yield, and milk composition of dairy cows

2014 ◽  
Vol 97 (3) ◽  
pp. 1499-1512 ◽  
Author(s):  
A.T.M. van Knegsel ◽  
G.J. Remmelink ◽  
S. Jorjong ◽  
V. Fievez ◽  
B. Kemp
Keyword(s):  
Energy Source ◽  
Energy Balance ◽  
Dairy Cows ◽  
Milk Yield ◽  
Milk Composition ◽  
Period Length ◽  
Dietary Energy ◽  
Dry Period

Duration of a severe feed restriction required to reversibly decrease milk production in the high-producing dairy cow

2007 ◽  
Vol 87 (3) ◽  
pp. 455-458 ◽  
Author(s):  
Chanelle A. Toerien ◽  
John P. Cant
Keyword(s):  
Dairy Cows ◽  
Key Words ◽  
Milk Production ◽  
Milk Yield ◽  
Dairy Cow ◽  
Milk Protein ◽  
Holstein Cows ◽  
Plasma Metabolites ◽  
Feed Restriction ◽  
Post Trial

To establish the duration of a severe feed restriction necessary to reversibly decrease milk production in high-producing Holstein cows, milk, plasma and urine parameters were assessed every 6 h during a 24-h restriction and 18-h refeed period. The 24-h restriction decreased yields of milk, protein and lactose by more than 30% without inducing ketosis or impairing milk production post-trial. Key words: Feed restriction, dairy cows, milk yield, plasma metabolites

The effect of intramammary infection during the dry period on the milk production of the affected quarter at the start of the succeeding lactation

1968 ◽  
Vol 35 (2) ◽  
pp. 287-290 ◽  
Author(s):  
A. Smith ◽  
F. H. Dodd ◽  
F. K. Neave
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Milk Yield ◽  
Dry Period ◽  
Intramammary Infection

SummaryIntramammary infection present in quarters of dairy cows, either throughout the dry period or originating in the dry period, reduces the milk yield after calving. Relative to the milk yield of equivalent non-infected quarters of the same udder the reduction was found in this work to be about 35%. The relative milk yield of quarters found infected in late lactation was depressed by 48% but if the infection was eliminated during the dry period, the depression in milk yield was only 11% after parturition.

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

2001 ◽  
Vol 2001 ◽  
pp. 203-203 ◽  
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).

Effects of dry period length on milk production and composition in early lactating Holstein cows

2009 ◽  
Vol 2009 ◽  
pp. 131-131
Author(s):  
A Soleimani ◽  
A Heravi Moussavi ◽  
M Danesh Mesgaran ◽  
S Safa
Keyword(s):  
Retrospective Analysis ◽  
Milk Production ◽  
Milk Yield ◽  
Metabolic Disorders ◽  
Period Length ◽  
Holstein Cows ◽  
Dry Period ◽  
Nutritional Strategy

Recently, there has been an interest in shortening the non-income-producing dry period (DP). Retrospective analysis of farm data and planned experiments both indicate about a 5 to 6% loss in milk yield during the subsequent lactation when the DP is reduced by approximately 30 d (Rastani et al., 2005). Additional milk produced during the extra 30 d of lactation can compensate for some of the loss in the subsequent lactation. There are, however, some advantages to reducing the dry period length, including increased income from milk in the current lactation, simplified management of dry cows through movement toward a one-group nutritional strategy, decreased metabolic disorders, and reduced strain on dry cow facilities. The aim of this study was to determine the effects of dry period length on milk production and composition in early lactating Holstein cows.

scholarly journals Effect of the first and next calvings of cows and their milk production level on the relationship between dry period length and milk yield and its composition in the subsequent lactation

2013 ◽  
Vol 56 (1) ◽  
pp. 934-942
Author(s):  
A. Sawa ◽  
M. Bogucki ◽  
K. Siatka
Keyword(s):  
Milk Production ◽  
Milk Yield ◽  
Period Length ◽  
Production Level ◽  
Dry Period ◽  
Milk Components ◽  
The Relationship ◽  
Positive Effect

Abstract. The effect cow age and milk production level was analized on the relationship between dry period length and milk yield and composition in the subsequent lactation. The GLM and CORR PEARSON procedures of the SAS package were used in the statistical calculations. It is shown that in terms of milk yield in the subsequent lactation, a dry period of 40–60 days was the most favourable. In particular in primiparous cows it was found that in terms of milk yield, shortening the dry period is less favourable than extending it beyond the 41- to 60-day standard. A dry period of 21–40 days can be offered to multiparous cows without significant milk losses in the subsequent lactation. Eliminating or shortening the dry period should exclude cows after first calving. It seems that a dry period of 21–40 days can also be offered to high-producing cows (&amp;geq; 8 000 kg milk) because their milk yield, in relation to cows dried for 41–60 days, was lower by 3.5 %. Shortening the dry period has a positive effect on the concentration of basic milk components such as fat and protein, causing them to increase. Dry period length had no effect on milk lactose content.

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