Hay versus silage: Does hay feeding positively affect milk composition?

Oever, Sabrina P. van den; Haselmann, Andreas; Schreiner, Matthias; Fuerst-Waltl, Birgit; Zebeli, Qendrim; Mayer, Helmut; Knaus, Wilhelm

doi:10.1016/j.idairyj.2021.105024

Cited by 8 publications

(7 citation statements)

References 48 publications

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“…The amino acid composition of yak individual milk was shown in Table 4. With substrates for the growth of starter cultures in process of cheese ripening, the content of free amino acids could affect the technical availability of milk [39]. Lys, Met and His were the first three essential amino acids in yak milk, with a proportion of 2.74-13.15% in total amino Similar results were found by Liu et al [4].…”

Section: Amino Acid Composition Of Yak Individual Milksupporting

confidence: 75%

Milk Production and Quality of Lactating Yak Fed Oat Silage Prepared with a Low-Temperature-Tolerant Lactic Acid Bacteria Inoculant

Zhu

Xie

Chen

et al. 2021

Foods

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This study aimed to investigate the effect of oat silage treated with a low-temperature-tolerant lactic acid bacteria (LAB) inoculant on milk yield and the quality of lactating yaks. Oat silages were prepared in big round bales, treated without (control) or with a low-temperature-tolerant LAB inoculant (a mixture of Lactobacillus plantarum BP18, Pediococcus pentosaceus HS1 and Lactobacillus buchneri LP22; the application rate of 105 cfu/g on a fresh matter basis). Eighteen lactating yaks were divided into nine pairs with a similar milk yield. Each pair of yaks was randomly allocated to the control or LAB-inoculated silage treatment. The inoculated silage increased the dry matter intake and the total volatile fatty acid (mainly acetate, propionate and butyrate) in rumen fluid compared with the control. The inoculated silage also enhanced the yield of yak milk with high contents of total N, fat and lactose. In addition, high levels of essential amino acids (Thr, Leu and Phe), polyunsaturated fatty acids and low saturated fatty acids were observed in milk when lactating yaks were fed with the inoculated silage. Therefore, inoculation with a low-temperature-tolerant LAB during ensiling could promote the milk yield of lactating yaks by enhancing dry matter intake and ruminal fermentation.

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Section: Amino Acid Composition Of Yak Individual Milksupporting

confidence: 75%

Milk Production and Quality of Lactating Yak Fed Oat Silage Prepared with a Low-Temperature-Tolerant Lactic Acid Bacteria Inoculant

Zhu

Xie

Chen

et al. 2021

Foods

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“…The effect was significant even though the feeding was generally similar on all farms, i.e., conserved fodder year-round. However, even slight differences in the proportions of components, the composition of grasslands and feed supplements can alter the profile of FAs in milk fat [ 33 , 34 , 35 , 36 ]. The results of mentioned studies showed that there are some significant differences between hay milk and silo milk.…”

Section: Resultsmentioning

confidence: 99%

Associations among Farm, Breed, Lactation Stage and Parity, Gene Polymorphisms and the Fatty Acid Profile of Milk from Holstein, Simmental and Their Crosses

Samková

Čítek

Brzáková

et al. 2021

Animals

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This study aimed to analyze the factors affecting the fatty acid (FA) profile in cow’s milk. The effects of a farm, lactation parity and stage, breed and polymorphisms in the AGPAT6, DGAT1, LEP, FASN and SCD1 genes were evaluated. A total of 196 Holstein cows, 226 Simmental cows and seven crosses were sampled 751 times. The cows were kept at five farms and were in the first up to the sixth lactation, and 49 individual FAs and 11 groups were analyzed. The farm significantly affected the proportion of all FAs except for C16:1n-7c and isoC14:0. Additionally, the lactation stage was significant for most FAs, and the opposite was true for lactation parity. The effect of the breed was negligible. For the gene polymorphisms, the SCD1 TT genotype exceeded the CC in C10:0, C12:0, C14:0, C16:1n-7c and C18:2, and the opposite was true for C10:1, C12:1, C14:1n-5c, isoC17:0, C16:1 and C18:1, i.e., the TT genotype was higher for saturated FAs, and the CT genotype was higher for monounsaturated FAs. The results hint at the intermediary heredity of the SCD1 gene. The FASN gene was strongly associated with four FAs and branched-chain FAs, and genotype AG was better than GG. LEP was significant for five individual FAs and branched-chain FAs. The differences in FA composition among genotypes were rather small, which could lead to overestimation of the effect and needs to be considered in the next research.

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“…Therefore, these variables cannot be considered factors. The amount of hay/fiber consumed can also impact milk fat [ 72 , 73 ]. Specifically, milk protein concentrations will be reduced, but milk fat concentrations will be greater in animals that are fed diets that are higher in fiber [ 72 ].…”

Section: Discussionmentioning

confidence: 99%

“…The amount of hay/fiber consumed can also impact milk fat [ 72 , 73 ]. Specifically, milk protein concentrations will be reduced, but milk fat concentrations will be greater in animals that are fed diets that are higher in fiber [ 72 ]. We did not measure the amount of hay consumed by these ewes in Y1 and Y2, which is a source of variation that we have been able to control in subsequent studies.…”

Section: Discussionmentioning

confidence: 99%

Determining the Effects of Pelleted Cranberry Vine Grains on the Ewe and Offspring during Pregnancy and Lactation

Smith

Petersson

Peterson

2023

Animals

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When creating any new anti-parasitic interventions, it is important to evaluate their effects across all life stages. This study had three objectives, which were to evaluate the effect of feeding cranberry vine pellet (CVP) on (1) ewes’ body weights and BCS during late gestation and lactation; (2) ewes’ milk quality during lactation; and (3) lambs’ body weight and growth parameters from birth to 65 days of age. Across two years, 41 Dorset ewes were fed either a 50% CVP or a matching control pellet (CON) from 104 ± 1.60 days of gestation for 62.8 ± 0.68 days of lactation. Measurements were collected from ewes (BW, BCS, and milk) and lambs (BW and body size). Milk from CVP ewes exhibited reduced milk fat and solids (p < 0.01) and increased concentrations of milk urea nitrogen (p = 0.02) when evaluated for the treatment–time. There was no significant difference in the BCS, protein, lamb BW, or growth measurements for treatment–time (p ≥ 0.05). Additional research that targets blood biochemistry and metabolic assessments is needed to fully determine the impact of this pellet on ewes and lambs.

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Hay versus silage: Does hay feeding positively affect milk composition?

Cited by 8 publications

References 48 publications

Milk Production and Quality of Lactating Yak Fed Oat Silage Prepared with a Low-Temperature-Tolerant Lactic Acid Bacteria Inoculant

Milk Production and Quality of Lactating Yak Fed Oat Silage Prepared with a Low-Temperature-Tolerant Lactic Acid Bacteria Inoculant

Associations among Farm, Breed, Lactation Stage and Parity, Gene Polymorphisms and the Fatty Acid Profile of Milk from Holstein, Simmental and Their Crosses

Determining the Effects of Pelleted Cranberry Vine Grains on the Ewe and Offspring during Pregnancy and Lactation

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