지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.1
- 수록면
- 1 - 7 (7page)
이용수
초록· 키워드
오류제보하기
Background: The modelling of lactation curve provides guidelines in formulating farm managerial practices in dairy cows. The aim of the present study was to determine the suitable non-linear model which most accurately fitted to lactation curves of five lactations in 134 Gir crossbred cows reared in Research-Cum- Development Project (RCDP) on Cattle farm, MPKV (Maharashtra). Four models viz. gamma-type function, quadratic model, mixed log function and Wilmink model were fitted to each lactation separately and then compared on the basis of goodness of fit measures viz. adjusted R2, root mean square error (RMSE), Akaike’s Informaion Criteria (AIC) and Bayesian Information Criteria (BIC).
Results: In general, highest milk yield was observed in fourth lactation whereas it was lowest in first lactation. Among the models investigated, mixed log function and gamma-type function provided best fit of the lactation curve of first and remaining lactations, respectively. Quadratic model gave least fit to lactation curve in almost all lactations. Peak yield was observed as highest and lowest in fourth and first lactation, respectively. Further, first lactation showed highest persistency but relatively higher time to achieve peak yield than other lactations.
Conclusion: Lactation curve modelling using gamma-type function may be helpful to setting the management strategies at farm level, however, modelling must be optimized regularly before implementing them to enhance productivity in Gir crossbred cows.
목차
등록된 정보가 없습니다.
참고문헌 (22)
참고문헌 신청
Boujenane I / 2013 / Comparison of different lactation curve models to describe lactation curve in Moroccan Holstein-Friesian dairy cows / Iran J Appl Anim Sci 3 (4) : 817 ~
Cankaya S / 2011 / Selection of a mathematical model to describe the lactation curves of Jersey cattle / Arch Tierz 54 (1) : 27 ~ 35
Cilek S / 2008 / Comparison of six different mathematical models to the lactation curve of Simmental cows reared in Kazova state farm / J Anim Vet Advan 7 : 1316 ~ 1319
Dohare AK / 2014 / Comparison of standard lactation curve models using fortnightly milk records in Frieswal cattle / Vet World 7 (10) : 831 ~ 834
Dongre V / 2012 / Comparison of different lactation curve models in Sahiwal cows / Turk J Vet Anim Sci 36 : 723 ~ 726
Cankaya S / 2011 / Selection of a mathematical model to describe the lactation curves of Jersey cattle / Arch Tierz 54 (1) : 27 ~ 35
Cilek S / 2008 / Comparison of six different mathematical models to the lactation curve of Simmental cows reared in Kazova state farm / J Anim Vet Advan 7 : 1316 ~ 1319
Dohare AK / 2014 / Comparison of standard lactation curve models using fortnightly milk records in Frieswal cattle / Vet World 7 (10) : 831 ~ 834
Dongre V / 2012 / Comparison of different lactation curve models in Sahiwal cows / Turk J Vet Anim Sci 36 : 723 ~ 726
함께 읽어보면 좋을 논문
논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!
-
Effects of season and age at first calving on genetic and phenotypic characteristics of lactation curve parameters in Holstein cows
한국축산학회지
2016 .01
-
Calcium Intake is Negatively Associated with Bone Loss During Lactation: A Pilot Study
한국식품영양과학회 학술대회발표집
2021 .10
-
젖소의 장수성과 수익성 관계 연구
Korean Journal of Agricultural Science
2015 .09
-
Maternal Diet during Pregnancy and Lactation Modulates Colonic Microbiota and Blood Composition of Rat Offspring
한국식품영양과학회 학술대회발표집
2018 .10
-
Impact of environmental factors on milk β-hydroxybutyric acid and acetone levels in Holstein cattle associated with production traits
Korean Journal of Agricultural Science
2016 .09
-
Influence of milking frequency on genetic parameters associated with the milk production in the first and second lactations of Iranian Holstein dairy cows using random regression test day models
한국축산학회지
2016 .01
-
The Effect of Glucose and Glucose Transporter on Regulation of Lactation in Dairy Cow
한국동물번식학회지
2015 .01
-
Evaluation of seasonal effects on production performance of lactation sows reared in two different environments in South Korea
Korean Journal of Agricultural Science
2019 .09
-
The impact of hair coat color on longevity of Holstein cows in the tropics
한국축산학회지
2016 .12
-
Effects of dietary energy and lysine levels on physiological responses, reproductive performance, blood profiles, and milk composition in primiparous sows
한국축산학회지
2020 .01
-
The carryover effects of high forage diet in bred heifers on feed intake, feed efficiency and milk production of primiparous lactating Holstein cows
한국초지조사료학회지
2017 .01
-
Evaluation of dry feeding and liquid feeding to lactating sows under high temperature environment
한국축산학회지
2016 .01
-
국내 홀스타인의 우유 내 지방산의 산차 및 비유기간별 유전모수 추정
Journal of Animal Breeding and Genomics
2022 .09
-
Effects of saccharin (sweetener) supplementation on growth performance, fecal moisture and litter performance of lactating sows
Korean Journal of Agricultural Science
2017 .06
-
A comparative study on milk composition of Jersey and Holstein dairy cows during the early lactation
한국축산학회지
2020 .01
-
Effect of omega-3 fatty acid supplementation in salmon oil on the production performance of lactating sows and their offspring
Korean Journal of Agricultural Science
2021 .06
-
Effect of Saccharomyces cerevisiae boulardii on sows’ farrowing duration and reproductive performance, and weanling piglets’ performance and IgG concentration
한국축산학회지
2022 .01
-
Effects of dry period length on milk production and physiological responses of heat-stressed dairy cows during the transition period
한국축산학회지
2023 .01
-
Effects of dietary energy and protein levels on reproductive performance in gestating sows and growth of their progeny
한국축산학회지
2019 .01
-
유기 조사료 급여 농가의 영양소 균형 및 유생산성 평가
한국초지조사료학회지
2016 .01
이 논문의 저자 정보
최근 본 자료
댓글(0)
0