scholarly journals Jarak Beranak Sapi Bali pada Kelompok-kelompok Ternak di Wilayah Kerja Pusat Kesehatan Hewan Sobangan, Mengwi, Badung, Bali

2021 ◽  
Vol 10 (5) ◽  
pp. 748-757
Author(s):  
Ni Komang Ade Juliantari ◽  
Desak Nyoman Dewi Indira Laksmi ◽  
Wayan Bebas

Penelitian ini bertujuan untuk mengetahui jarak beranak (calving interval) pada sapi bali menurut tingkat paritas dan body condition score. Total sampel yang digunakan adalah sebanyak 62 sampel. Penelitian ini merupakan penelitian deskriptif, mencari rata-rata calving interval dan dibedakan berdasarkan body condition score. Hasil penelitian menunjukkan bahwa terdapat beragam nilai calving interval. Jika dilihat dari body condition score 2, rata-rata 15,33 ± 0,94 bulan, 13 ± 1 bulan, 14 bulan, 15 bulan, hingga 16,5 ± 0,5 bulan, semakin tua sapi yang diternakkan maka semakin lama kemunculan estrus postpartum sehingga makin panjang juga periode calving intervalnya. Pada body condition score 3, rata-rata 12,91 ± 1,65 bulan, 12,87 ± 1,65 bulan, 12,5 ± 0,5 bulan, 13,25 ± 0,43 bulan, dan 14 bulan. Faktor penyebab panjangnya calving interval dapat dilihat dari segi ternak, peternak, maupun inseminator. Segi ternak yang mempengaruhi yaitu kesehatan ternak. Segi peternak yang mempengaruhi adalah deteksi birahi, pemeliharaan ternak, dan penyapihan yang dilakukan. Segi inseminator adalah prosedur pelaksanaan dan kualitas semen. Hal ini sangat penting karena jika sapi yang diternakkan mengalami faktor-faktor yang disebutkan maka akan mempengaruhi daripada nilai calving interval yang berakibat pada penurunan pendapatan peternak karena jumlah anak yang dihasilkan akan berkurang selama masa produktif.

2006 ◽  
Vol 73 (4) ◽  
pp. 487-491 ◽  
Author(s):  
Donagh P Berry ◽  
Kevin A Macdonald ◽  
John W Penno ◽  
John R Roche

The objective was to quantify the strength of the relationship between body condition score (BCS) and live weight (LW) in pasture-based Holstein-Friesian dairy cattle, and to determine the kg LW per unit BCS. A total of 26021 test-day records with information on both BCS (1–10 scale, where 1 is emaciated and 10 is obese) and LW across 1110 lactations from one research farm were used in the analysis. Correlation and regression analyses were used to determine the degree of association between BCS and LW in different parities, stages of the inter-calving interval and years. Correlations between BCS and LW were relatively consistent, with the mean correlation between BCS and LW across all data of 0·55 implying that differences in BCS explain approximately 30% of the variation in LW. Significantly different regressions of LW on BCS were present within stage of inter-calving interval by parity subclasses. Excluding calving, LW per unit BCS varied from 17 kg (early to mid lactation in parity 1) to 36 kg (early lactation in parity 4 and 5). However, LW per unit BCS was greatest at calving varying from 44 kg in first parity animals to 62 kg in second parity animals. On average, 1 BCS unit equated to 31 kg LW across all data.


2001 ◽  
Vol 2001 ◽  
pp. 37-37 ◽  
Author(s):  
J.E. Pryce ◽  
M.P. Coffey ◽  
S.H. Brotherstone ◽  
J.A. Woolliams

Increasing genetic merit for production has been associated with a decline in dairy cow fertility. In order to sustain lactation it appears that appreciable amounts of body condition are being mobilised, which may impinge on fertility. Body condition score (BCS) of first lactation heifers is recorded by Holstein UK and Ireland (HUKI) as part of its national type classification scheme. BCS may be a useful selection criterion for improving fertility. Calving dates and hence calving interval (CI) are generally very reliably recorded, but the usefulness of CI as a selection criterion is hampered for a number of reasons, one being that only the most fertile cows have two consecutive calving dates. This is a serious issue that still needs to be addressed. Our aim here was to investigate if there is genetic covariation between BCS and CI after adjustment for milk yield and to investigate selection responses in all three traits when selection is for each trait in turn and how responses are affected by restrictions imposing no genetic change in one of the traits. Restricting a trait to no change when it is correlated to a trait under selection may be important in developing customised indexes to satisfy specific requirements.


2020 ◽  
Vol 8 (2) ◽  
pp. 149
Author(s):  
Aghid Cahya P. ◽  
Sri Mulyati ◽  
Suwarno Suwarno ◽  
Imam Mustofa ◽  
Pudji Srianto ◽  
...  

The purpose of this study was to determine the comparison of Body Condition Score, Services Per Conception, Calving Interval, and Days Open cow friesian holstein (FH) in Greenfield Partnership and Tani Wilis Sendang Cooperation. The material used in this research is dairy cattle that have been inseminated in Greenfield Partnership and KUD Tani Wilis with secondary data retrieval of reproduction notes during IB until partus and quisioner distributed by farmers and inseminators. The exploratory survey method used is secondary data obtained from the record reproduction inseminator. The observed variables BCS, S/C, CI and DO . The data was processed using descriptive analysis to get a number BCS, S/C, CI and DO in Greenfield Partnership and Tani Wilis Sendang Cooperation. The results showed that the average value of BCS at Greenfield Partnership is 4.86 and at Tani Wilis Cooperation is 4.74. The average value of S/C in Greenfield Partnership is 4.36 and at Tani Wilis Sendang Cooperation is 2.06. The average value CI at Greenfield Partnership is 463.00 and at Tani Wilis Sendang is 414.40. The average value DO at Greenfield Partnership is 64.84 and at Tani Wilis Sendang is 88.00. It can be concluded that the comparison of BCS in both places is not significantly different while for the S/C of Tani WilisSendang Cooperation is better than Greenfield Partnership, the CalvingInterval in both places is still less good because it is far from the standard CI value, and for the Days Open Greenfield partnership is better thanTaniWilisSendang Cooperation.


Author(s):  
M A Marrella ◽  
R R White ◽  
N W Dias ◽  
C Timlin ◽  
S Pancini ◽  
...  

Abstract The objective of this study was to assess differences in reproductive performance of natural service and artificial insemination (AI) sired beef females based on pregnancy outcomes, age at first calving, and calving interval. Data were sourced from 8,938 cows sired by AI bulls and 3,320 cows sired by natural service bulls between 2010 and 2017. All cows were in a commercial Angus herd with 17 management units located throughout Virginia and represented spring and fall calving seasons. All calves were born to dams managed with estrus synchronization. Pregnancy was analyzed with generalized linear mixed models and other reproductive measures with linear mixed models in R. Six models were evaluated with the dependent variables of pregnancy status at the first diagnosis, pregnancy status at the second diagnosis, pregnancy type (AI or natural service) at the first diagnosis, pregnancy type at the second diagnosis, calving interval, and age at first calving. Independent variables differed by model but included sire type of the female (AI or natural service), pre-breeding measures of age, weight, and body condition score, postpartum interval, sex of the calf nursing the cow, and management group. No differences were observed between AI- and natural service-sired females based on pregnancy status at first and second pregnancy diagnosis (P > 0.05). Sire type was only found to be significant for age at first calving (P < 0.05) with AI-sired females being 26.6 ± 1.6 days older at their first calving, which was expected because AI-sired females were born early in the calving season making them older at breeding. Surprisingly, age and body condition score were not significant predictors of pregnancy (P > 0.05). Body weight at breeding was not significant for pregnancy (P > 0.05) but was significant for age at first calving (P < 0.05). These data suggested that lighter heifers calved earlier which contradicts our original hypothesis. Overall, commercial Angus females sired by AI or natural service bulls had similar reproductive performance. Factors that were commonly associated with reproductive success were not significant in this commercial Angus herd managed with estrus synchronization. Given the size of these data, the importance of body condition, age, and weight should be reassessed in modern genetics and management practices.


2002 ◽  
Vol 85 (6) ◽  
pp. 1590-1595 ◽  
Author(s):  
J.E. Pryce ◽  
M.P. Coffey ◽  
S.H. Brotherstone ◽  
J.A. Woolliams

2014 ◽  
Vol 42 (04) ◽  
pp. 220-224
Author(s):  
J. K. Mack ◽  
H. P. Remler ◽  
E. Senckenberg ◽  
E. Kienzle

Zusammenfassung Ziel der Studie war, den Energiebedarf von Warmblutfohlen zu überprüfen, die durch einen Betriebswechsel beim Absetzen erhöhtem Stress ausgesetzt sind. Material und Methoden: Neun Hengstfohlen, die als Absetzer von verschiedenen Züchtern gekauft und gemeinsam aufgestallt wurden, nahmen an der Studie vom Absetzen im Alter von etwa 6 Monaten bis zu einem Alter von etwa 1 Jahr teil. Das Absetzen erfolgte im heimischen Betrieb oder nach gemeinsamem Transport von Stute und Fohlen bei Ankunft im neuen Bestand. Die Fohlen erhielten Heulage (später erster Schnitt), Hafer und Fohlenaufzuchtfutter. Um eine individuelle Kraftfutterzuteilung zu ermöglichen, wurden die Fohlen zweimal täglich separat angebunden. Erhoben wurden die Gesamtaufnahme der Heulage aller Fohlen gemeinsam pro Tag, die tägliche individuelle Kraftfutteraufnahme sowie in 4-wöchigen Abständen Körpermasse und Body Condition Score (BCS). Ergebnisse: Die tägliche Energieaufnahme der Fohlen betrug 74 MJ verdauliche Energie (68 MJ umsetzbare Energie) pro Tier. Die Fohlen wurden mit vergleichsweise niedrigem BCS von 4,2 ± 0,4 (Skala von 1 bis 9) und einer durchschnittlichen Körpermasse von 285 ± 30 kg aufgestallt. Sie erreichten am Ende der Studie im Alter von 319 ± 22 Tagen eine Körpermasse von 326 ± 24 kg und einen BCS von 4,2 ± 0,4. Die Energieaufnahme der Fohlen war höher und ihre Gewichtsentwicklung langsamer als in einer parallel laufenden Studie mit Fohlen, die im Gestüt geboren und aufgewachsen und dementsprechend beim Absetzen weniger Stress ausgesetzt waren. Schlussfolgerung und klinische Relevanz: Fohlen mit relativ niedriger Körpermasse und BCS und erheblichem Stress zum Zeitpunkt des Absetzens benötigen deutlich mehr Energie als Fohlen, die beim Absetzen in ihrer gewohnten Umgebung verbleiben und dadurch weniger Stressoren unterliegen.


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