Effect of photoperiod on milk yield and quality, and reproduction in dairy goats

García-Hernández, Rosa María; Newton, G. R.; Horner, Sharon D.; Nuti, L. C.

doi:10.1016/j.livsci.2006.11.005

Cited by 22 publications

(27 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2), which disagree with data reported by Garcia-Hernandez et al (2007) in goats. There is a negative correlation between milk yield and milk fat percentage and the value of this negative correlation is greater for cows receiving supplemental light than for those under natural light (Stanisiewski et al, 1985).…”

Section: Long Dayscontrasting

confidence: 75%

“…One possible explanation for the effect of photoperiod on milk yield is a greater feed intake, due to the increased demand for energy output from the mammary gland. Some authors have observed an increase of feed intake when lactating goats (Garcia-Hernandez et al, 2007) were exposed t o longer photoperiods. Thus, this would be a n economical method t o increase milk yield because additional feed consumed would exceed maintenance requirements and be available for milk synthesis.…”

Section: Resultsmentioning

confidence: 99%

“…Von Brackel-Bodenhausen et al (1994) noticed that reproductive activity of goats ceased after approximately one mo of exposure to long photoperiod in December (51e N latitude), thus, ovarian activity in goats in the present study could have been hampered by the long photoperiod, in addition to the increasing daylight during the lactation period. Moreover, a great number of goats subjected t o long day photoperiod presented pseudopregnancy (Garcia-Hernandez et al, 2007). However, treatment of goats with artificially long days followed by a natural photoperiod is very effective in inducing fertile reproductive activity via the male effect in the middle of seasonal anoestrus (Pellicer-Rubio et al, 2007).…”

Section: Long Daysmentioning

confidence: 99%

See 2 more Smart Citations

Effects of a Long Daily Photoperiod on Milk Yield and Ovarian Activity of Saanen Goats in Northern Mexico

Véliz

Mellado

Carrillo³

et al. 2009

Journal of Applied Animal Research

View full text Add to dashboard Cite

show abstract

Section: Long Dayscontrasting

confidence: 75%

Section: Resultsmentioning

confidence: 99%

Section: Long Daysmentioning

confidence: 99%

See 1 more Smart Citation

Effects of a Long Daily Photoperiod on Milk Yield and Ovarian Activity of Saanen Goats in Northern Mexico

Véliz

Mellado

Carrillo³

et al. 2009

Journal of Applied Animal Research

View full text Add to dashboard Cite

show abstract

“…García-Hernández et al (2007) associated effects of long day photoperiod on increased per cent milk fat and decreased SCC (< 1,705 · 10 3 SC mL -1 ). Thus, in the spring season (increasing photoperiod, mild temperatures, and sometimes better feed) the production tends to increase and therefore the SCC is reduced (Peris et al, 2002a).…”

Section: Seasonalitymentioning

confidence: 95%

Factors affecting somatic cell count in dairy goats: a review

Jiménez-Granado

Sánchez-Rodríguez

Arce

et al. 2014

Span. j. agric. res.

View full text Add to dashboard Cite

Somatic cell count (SCC) in monitoring udder health has been described in numerous studies as a useful method for the diagnosis of intramammary infection (IMI), and it is considered in standards of quality and hygiene of cow's milk in many countries. However, several authors have questioned the validity of SCC as a reliable IMI diagnosis tool in dairy goats. This review attempts to reflect the importance of different infectious and non-infectious factors that can modify SCC values in goat milk, and must, therefore, be taken into account when using the SCC as a tool in the improvement of udder health and the quality of milk in this species. In dairy goats, some investigations have shown that mammary bacterial infections are a major cause of increased SCC and loss of production. In goats however, the relationship between bacterial infections and SCC values is not as simple as in dairy cattle, since non-infectious factors also have a big impact on SCC. Intrinsic factors are those that depend directly on the animal: time and number of lactation (higher SCC late in lactation and in aged goats), prolificity (higher SCC in multiple births), milking time (higher SCC in evening compared to morning milking) and number of milkings per day, among others. Extrinsic factors include: milking routine (lower SCC in machine than in manual milking), seasonality and food. In addition, milk secretion in goats is mostly apocrine and therefore characterized by the presence of epithelial debris or cytoplasmic particles, which makes the use of DNA specific counters mandatory. All this information is of interest in order to correctly interpret the SCC in goat milk and to establish differential SCC standards.Additional key words: infectious and non-infectious factors; milk quality; mastitis; benchmarking.

show abstract

“…The lighting level has a direct impact on the milk production [31][32][33][42][43][44]. Thereby, the effect of long day photoperiod (LDPP) concept is introduced into the optimization processes.…”

Section: Lighting Optimizationmentioning

confidence: 99%

Viability study of the use of grid connected photovoltaic system in agriculture: Case of Algerian dairy farms

Bey

Hamidat²,

Benyoucef

et al. 2016

Renewable and Sustainable Energy Reviews

View full text Add to dashboard Cite

Effect of photoperiod on milk yield and quality, and reproduction in dairy goats

Cited by 22 publications

References 19 publications

Effects of a Long Daily Photoperiod on Milk Yield and Ovarian Activity of Saanen Goats in Northern Mexico

Effects of a Long Daily Photoperiod on Milk Yield and Ovarian Activity of Saanen Goats in Northern Mexico

Factors affecting somatic cell count in dairy goats: a review

Viability study of the use of grid connected photovoltaic system in agriculture: Case of Algerian dairy farms

Contact Info

Product

Resources

About